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ntp server
by Jerry Geis 07 Jul '10

07 Jul '10

I have a need to run a centos server CUT-off from any connected network. So the NTP server that is running on this very small network cannot connect to any other site to do what NTP does. however, I have devices on this small network that I wish to use the centos server as the time source and run ntpd. However - it seems like ntpd server does not like to run this way. There is a LONG delay before it finally says OK - no one to talk to so I'll just give the time anyway. Then things start working. Is there some method to SKIP this long delay??? It seems like its 15 or 20 minutes. I need to bypass that delay or tell ntpd "I dont care about others time" just provide the time you have. Thanks, Jerry

6 7

security compliance vs. old software versions
by Les Mikesell 07 Jul '10

07 Jul '10

What's the correct response to a security scan that points out that apache versions below 2.2.14 have multiple known vulnerabilities? Is there an official document about what known vulnerabilities have been fixed in the RHEL/CentOS updates or do you have to wade through the changelog to try to find each thing? -- Les Mikesell lesmikesell(a)gmail.com

16 35

KVM virtual guest can not use serial port
by Doug Coats 07 Jul '10

07 Jul '10

I hope this is not to far off topic. I have a Windows 2003 guest on a CentOS 5.5 KVM host. I need to use the serial port on the win2003 guest for the application it is serving. I have no idea what needs to be done but it looks like the linux host is trying to use the serial port as the priamary console but I don't really understand what that is or where it is configured. What I need is for the host to ignore any traffice over the serial port and to pass it to the guest. On the host, ls -l /dev | grep ttyS, returns: crw-rw---- 1 root uucp 4, 64 Jul 6 10:17 ttyS0 crw-rw---- 1 root uucp 4, 65 Jul 6 10:17 ttyS1 crw-rw---- 1 root uucp 4, 66 Jul 6 10:17 ttyS2 crw-rw---- 1 root uucp 4, 67 Jul 6 10:17 ttyS3 It only has 1 serial port so I don't know why ttyS1-S3 are listed. On the guest it says that Com1 is configured and working properly. On the Virtual Machine Hardware tab of the guest it lists a Serial 0. Details: Serial Device (Priamary Console) Device Type: pty Target Port: 0 Source Path: /dev/pts/2 Any help would be greatly appreaciated. Thanks!!!

5 8

Mock build php i386 from x86_64 issue
by Jason Pyeron 07 Jul '10

07 Jul '10

[mock@ten-186 ~]$ mock php-5.1.6-27.el5.src.rpm init clean prep This may take a while setup build Installing /builddir/build/SRPMS/php-5.1.6-27.src.rpm Building target platforms: i386 Building for target i386 Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.23317 + umask 022 + cd /builddir/build/BUILD + LANG=C + export LANG + unset DISPLAY + cd /builddir/build/BUILD + rm -rf php-5.1.6 + /bin/gzip -dc /builddir/build/SOURCES/php-5.1.6.tar.gz ... checking OpenSSL dir for SNMP... no /usr/bin/net-snmp-config: line 43: net-snmp-config-x86_64: command not found /usr/bin/net-snmp-config: line 43: net-snmp-config-x86_64: command not found /usr/bin/net-snmp-config: line 43: net-snmp-config-x86_64: command not found configure: error: Could not find the required paths. Please check your net-snmp installation. error: Bad exit status from /var/tmp/rpm-tmp.66050 (%build) -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

3 4

Starting tomcat5: /usr/bin/rebuild-jar-repository: error: Could not find jdbc-stdext Java extension for this JVM
by testwreq wreq 07 Jul '10

07 Jul '10

Due to some XML issues, we installed *1.6 from Sun jdk-6u20-nb-6_8-linux-ml.sh on Centos. * ** *below is the output from *[root@www2 tmp]# alternatives --config java There are 3 programs which provide 'java'. Selection Command ----------------------------------------------- 1 /usr/lib/jvm/jre-1.4.2-gcj/bin/java * 2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java + 3 /usr/local/jdk1.6.0_20/bin/java It has been set to use SUN JDk from /usr/local/jdk1.6.0_20/bin/java instead of open source /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java Tomcat did not startup sucessfully after making the following change in tomcat5.conf #JAVA_HOME="/usr/lib/jvm/java" JAVA_HOME="/usr/local/jdk1.6.0_20/bin/java" [root@devwww init.d]# ./tomcat5 start Starting tomcat5: /usr/bin/rebuild-jar-repository: error: Could not find jdbc-stdext Java extension for this JVM /usr/bin/rebuild-jar-repository: error: Could not find jndi Java extension for this JVM /usr/bin/rebuild-jar-repository: error: Some detected jars were not found for this jvm /usr/bin/rebuild-jar-repository: error: Could not find jaas Java extension for this JVM /usr/bin/rebuild-jar-repository: error: Some detected jars were not found for this jvm [ OK ] I cannot bring up tomcat default page. Please guide me to fix this issue. Thanks in advance, vm

1 0

PPC questions
by Terry Polzin 07 Jul '10

07 Jul '10

Could anyone with some PPC linux experience e-mail me off-line to answer some specific PPC questions. THANKS, Terry

1 0

kernel: Machine check events logged
by Alexander Farber 07 Jul '10

07 Jul '10

Hello, every few hours I get the following message in /var/log/message: Jul 5 20:23:28 hXXX kernel: Machine check events logged Jul 5 20:53:28 hXXX kernel: Machine check events logged Jul 5 22:13:28 hXXX kernel: Machine check events logged Jul 5 23:53:28 hXXX kernel: Machine check events logged Jul 5 23:58:27 hXXX kernel: Machine check events logged Jul 6 01:38:27 hXXX kernel: Machine check events logged Jul 6 04:48:27 hXXX kernel: Machine check events logged And in the /var/log/mcelog I see: MCE 0 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor CPU 0 4 northbridge TSC 111a60c5584d4 [at 2500 Mhz 1 days 9:25:51 uptime (unreliable)] MISC c008000001000000 ADDR 1148f5940 Northbridge NB Array Error bit35 = err cpu3 bit42 = L3 subcache in error bit 0 bit43 = L3 subcache in error bit 1 bit46 = corrected ecc error bit59 = misc error valid memory/cache error 'generic read mem transaction, generic transaction, level generic' STATUS 9c1f4cf8001c011b MCGSTATUS 0 No DIMM found for 1148f5940 in SMBIOS My machine (a CentOS 5.5/64bit server rented at German hoster strato.de) seems to run ok as a LAMP server though... What do these messages actually mean, is RAM defect and how critical is it (because I have an important event this Friday and would prefer not to take the machine offline) Thank you and I'm attaching my dmesg output below Regards Alex Linux version 2.6.18-194.8.1.el5 (mockbuild(a)builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Thu Jul 1 19:04:48 EDT 2010 Command line: ro root=LABEL=/ console=tty0 console=ttyS0,57600 BIOS-provided physical RAM map: BIOS-e820: 0000000000010000 - 000000000009f000 (usable) BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000ddfb0000 (usable) BIOS-e820: 00000000ddfb0000 - 00000000ddfbe000 (ACPI data) BIOS-e820: 00000000ddfbe000 - 00000000ddfe0000 (ACPI NVS) BIOS-e820: 00000000ddfe0000 - 00000000ddfee000 (reserved) BIOS-e820: 00000000ddff0000 - 00000000de000000 (reserved) BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000120000000 (usable) DMI present. ACPI: RSDP (v000 ACPIAM ) @ 0x00000000000faf80 ACPI: RSDT (v001 032510 RSDT1503 0x20100325 MSFT 0x00000097) @ 0x00000000ddfb0000 ACPI: FADT (v002 032510 FACP1503 0x20100325 MSFT 0x00000097) @ 0x00000000ddfb0200 ACPI: MADT (v001 032510 APIC1503 0x20100325 MSFT 0x00000097) @ 0x00000000ddfb0390 ACPI: MCFG (v001 032510 OEMMCFG 0x20100325 MSFT 0x00000097) @ 0x00000000ddfb0400 ACPI: OEMB (v001 032510 OEMB1503 0x20100325 MSFT 0x00000097) @ 0x00000000ddfbe040 ACPI: HPET (v001 032510 OEMHPET 0x20100325 MSFT 0x00000097) @ 0x00000000ddfb48c0 ACPI: SSDT (v001 A M I POWERNOW 0x00000001 AMD 0x00000001) @ 0x00000000ddfb4900 ACPI: DSDT (v001 A96B3 A96B3210 0x00000210 INTL 0x20051117) @ 0x0000000000000000 No NUMA configuration found Faking a node at 0000000000000000-0000000120000000 Bootmem setup node 0 0000000000000000-0000000120000000 Memory for crash kernel (0x0 to 0x0) notwithin permissible range disabling kdump On node 0 totalpages: 1022763 DMA zone: 2627 pages, LIFO batch:0 DMA32 zone: 890856 pages, LIFO batch:31 Normal zone: 129280 pages, LIFO batch:31 ACPI: PM-Timer IO Port: 0x808 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) Processor #0 0:4 APIC version 16 ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) Processor #1 0:4 APIC version 16 ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled) Processor #2 0:4 APIC version 16 ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled) Processor #3 0:4 APIC version 16 ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 4, version 33, address 0xfec00000, GSI 0-23 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level) ACPI: IRQ0 used by override. ACPI: IRQ2 used by override. ACPI: IRQ9 used by override. Setting APIC routing to physical flat ACPI: HPET id: 0x8300 base: 0xfed00000 Using ACPI (MADT) for SMP configuration information Nosave address range: 000000000009f000 - 00000000000a0000 Nosave address range: 00000000000a0000 - 00000000000e4000 Nosave address range: 00000000000e4000 - 0000000000100000 Nosave address range: 00000000ddfb0000 - 00000000ddfbe000 Nosave address range: 00000000ddfbe000 - 00000000ddfe0000 Nosave address range: 00000000ddfe0000 - 00000000ddfee000 Nosave address range: 00000000ddfee000 - 00000000ddff0000 Nosave address range: 00000000ddff0000 - 00000000de000000 Nosave address range: 00000000de000000 - 00000000ff700000 Nosave address range: 00000000ff700000 - 0000000100000000 Allocating PCI resources starting at e0000000 (gap: de000000:21700000) SMP: Allowing 4 CPUs, 0 hotplug CPUs Built 1 zonelists. Total pages: 1022763 Kernel command line: ro root=LABEL=/ console=tty0 console=ttyS0,57600 Initializing CPU#0 PID hash table entries: 4096 (order: 12, 32768 bytes) Console: colour VGA+ 80x25 Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) Checking aperture... CPU 0: aperture @ 4000000 size 32 MB Aperture too small (32 MB) No AGP bridge found Your BIOS doesn't leave a aperture memory hole Please enable the IOMMU option in the BIOS setup This costs you 64 MB of RAM Mapping aperture over 65536 KB of RAM @ 4000000 Nosave address range: 0000000004000000 - 0000000008000000 ACPI: DMAR not present Memory: 4016200k/4718592k available (2575k kernel code, 144564k reserved, 1303k data, 212k init) Calibrating delay loop (skipped), value calculated using timer frequency.. 5000.21 BogoMIPS (lpj=2500105) Security Framework v1.0.0 initialized SELinux: Initializing. SELinux: Starting in permissive mode selinux_register_security: Registering secondary module capability Capability LSM initialized as secondary Mount-cache hash table entries: 256 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 0/0 -> Node 0 CPU: Physical Processor ID: 0 CPU: Processor Core ID: 0 SMP alternatives: switching to UP code ACPI: Core revision 20060707 Using local APIC timer interrupts. Detected 12.500 MHz APIC timer. SMP alternatives: switching to SMP code Booting processor 1/4 APIC 0x1 Initializing CPU#1 Calibrating delay using timer specific routine.. 5000.36 BogoMIPS (lpj=2500184) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 1/1 -> Node 0 CPU: Physical Processor ID: 0 CPU: Processor Core ID: 1 Quad-Core AMD Opteron(tm) Processor 1381 stepping 02 SMP alternatives: switching to SMP code Booting processor 2/4 APIC 0x2 Initializing CPU#2 Calibrating delay using timer specific routine.. 4999.71 BogoMIPS (lpj=2499855) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 2/2 -> Node 0 CPU: Physical Processor ID: 0 CPU: Processor Core ID: 2 Quad-Core AMD Opteron(tm) Processor 1381 stepping 02 SMP alternatives: switching to SMP code Booting processor 3/4 APIC 0x3 Initializing CPU#3 Calibrating delay using timer specific routine.. 5000.16 BogoMIPS (lpj=2500084) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 3/3 -> Node 0 CPU: Physical Processor ID: 0 CPU: Processor Core ID: 3 Quad-Core AMD Opteron(tm) Processor 1381 stepping 02 Brought up 4 CPUs testing NMI watchdog ... OK. time.c: Using 14.318180 MHz WALL HPET GTOD HPET/TSC timer. time.c: Detected 2500.108 MHz processor. sizeof(vma)=176 bytes sizeof(page)=56 bytes sizeof(inode)=560 bytes sizeof(dentry)=216 bytes sizeof(ext3inode)=760 bytes sizeof(buffer_head)=96 bytes sizeof(skbuff)=248 bytes migration_cost=230 checking if image is initramfs... it is Freeing initrd memory: 2614k freed NET: Registered protocol family 16 ACPI: bus type pci registered PCI: BIOS Bug: MCFG area at e0000000 is not E820-reserved PCI: Not using MMCONFIG. PCI: Using configuration type 1 PCI: Using configuration type 1 for extended access ACPI: Interpreter enabled ACPI: Using IOAPIC for interrupt routing ACPI: No dock devices found. ACPI: PCI Root Bridge [PCI0] (0000:00) PCI: set SATA to AHCI mode PCI: Ignoring BAR0-3 of IDE controller 0000:00:14.1 PCI: Transparent bridge - 0000:00:14.4 ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCE4._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCE5._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0PC._PRT] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 *5 7 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 10 11 12 14 *15) ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 *10 11 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 *10 11 12 14 15) ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 10 11 12 14 15) *0, disabled. ACPI: PCI Interrupt Link [LNKF] (IRQs 9) *0, disabled. ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 7 10 *11 12 14 15) ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 7 10 11 12 14 15) *0, disabled. Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI init pnp: PnP ACPI: found 14 devices usbcore: registered new driver usbfs usbcore: registered new driver hub PCI: Using ACPI for IRQ routing PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report PCI: Cannot allocate resource region 1 of device 0000:00:14.0 NetLabel: Initializing NetLabel: domain hash size = 128 NetLabel: protocols = UNLABELED CIPSOv4 NetLabel: unlabeled traffic allowed by default hpet0: at MMIO 0xfed00000 (virtual 0xffffffffff5fe000), IRQs 2, 8, 0, 0 hpet0: 4 32-bit timers, 14318180 Hz ACPI: DMAR not present PCI-DMA: Disabling AGP. PCI-DMA: aperture base @ 4000000 size 65536 KB PCI-DMA: using GART IOMMU. PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture pnp: 00:0b: ioport range 0xa00-0xa0f has been reserved pnp: 00:0b: ioport range 0xa10-0xa1f has been reserved PCI: Error while updating region 0000:00:14.0/1 (e0000004 != 8000a014) PCI: Bridge: 0000:00:01.0 IO window: c000-cfff MEM window: fe800000-fe9fffff PREFETCH window 0x00000000fc000000-0x00000000fdffffff PCI: Bridge: 0000:00:04.0 IO window: d000-dfff MEM window: fea00000-feafffff PREFETCH window: disabled. PCI: Bridge: 0000:00:05.0 IO window: e000-efff MEM window: feb00000-febfffff PREFETCH window: disabled. PCI: Bridge: 0000:00:14.4 IO window: disabled. MEM window: disabled. PREFETCH window: disabled. PCI: Setting latency timer of device 0000:00:04.0 to 64 PCI: Setting latency timer of device 0000:00:05.0 to 64 NET: Registered protocol family 2 IP route cache hash table entries: 131072 (order: 8, 1048576 bytes) TCP established hash table entries: 262144 (order: 10, 4194304 bytes) TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) TCP: Hash tables configured (established 262144 bind 65536) TCP reno registered audit: initializing netlink socket (disabled) type=2000 audit(1278326009.398:1): initialized Total HugeTLB memory allocated, 0 VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 512 (order 0, 4096 bytes) SELinux: Registering netfilter hooks Initializing Cryptographic API alg: No test for crc32c (crc32c-generic) ksign: Installing public key data Loading keyring - Added public key 71959A475B93578 - User ID: CentOS (Kernel Module GPG key) io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered (default) Boot video device is 0000:01:05.0 PCI: Setting latency timer of device 0000:00:04.0 to 64 PCI: Setting latency timer of device 0000:00:05.0 to 64 pci_hotplug: PCI Hot Plug PCI Core version: 0.5 ACPI: duty_cycle spans bit 4 ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3]) Real Time Clock Driver v1.12ac hpet_resources: 0xfed00000 is busy Non-volatile memory driver v1.2 Linux agpgart interface v0.101 (c) Dave Jones Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A 00:05: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:06: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A brd: module loaded Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx SB600_PATA: IDE controller at PCI slot 0000:00:14.1 GSI 16 sharing vector 0xC1 and IRQ 16 ACPI: PCI Interrupt 0000:00:14.1[A] -> GSI 16 (level, low) -> IRQ 193 SB600_PATA: chipset revision 0 SB600_PATA: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xff00-0xff07, BIOS settings: hda:pio, hdb:pio Probing IDE interface ide0... Probing IDE interface ide0... Probing IDE interface ide1... ide-floppy driver 0.99.newide usbcore: registered new driver hiddev usbcore: registered new driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1 PNP: PS/2 controller doesn't have AUX irq; using default 12 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 mice: PS/2 mouse device common for all mice md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: bitmap version 4.39 TCP bic registered Initializing IPsec netlink socket NET: Registered protocol family 1 NET: Registered protocol family 17 ACPI: (supports S0 S1 S3 S4 S5) Initalizing network drop monitor service Freeing unused kernel memory: 212k freed Write protecting the kernel read-only data: 504k GSI 17 sharing vector 0xC9 and IRQ 17 ACPI: PCI Interrupt 0000:00:13.5[D] -> GSI 19 (level, low) -> IRQ 201 ehci_hcd 0000:00:13.5: EHCI Host Controller ehci_hcd 0000:00:13.5: new USB bus registered, assigned bus number 1 ehci_hcd 0000:00:13.5: applying AMD SB600/SB700 USB freeze workaround ehci_hcd 0000:00:13.5: debug port 1 ehci_hcd 0000:00:13.5: irq 201, io mem 0xfe7ff000 ehci_hcd 0000:00:13.5: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 10 ports detected ohci_hcd: 2005 April 22 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI) ACPI: PCI Interrupt 0000:00:13.0[A] -> GSI 16 (level, low) -> IRQ 193 ohci_hcd 0000:00:13.0: OHCI Host Controller ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 2 ohci_hcd 0000:00:13.0: irq 193, io mem 0xfe7fe000 usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 2 ports detected GSI 18 sharing vector 0xD1 and IRQ 18 ACPI: PCI Interrupt 0000:00:13.1[B] -> GSI 17 (level, low) -> IRQ 209 ohci_hcd 0000:00:13.1: OHCI Host Controller ohci_hcd 0000:00:13.1: new USB bus registered, assigned bus number 3 ohci_hcd 0000:00:13.1: irq 209, io mem 0xfe7fd000 usb usb3: configuration #1 chosen from 1 choice hub 3-0:1.0: USB hub found hub 3-0:1.0: 2 ports detected GSI 19 sharing vector 0xD9 and IRQ 19 ACPI: PCI Interrupt 0000:00:13.2[C] -> GSI 18 (level, low) -> IRQ 217 ohci_hcd 0000:00:13.2: OHCI Host Controller ohci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 4 ohci_hcd 0000:00:13.2: irq 217, io mem 0xfe7fc000 usb usb4: configuration #1 chosen from 1 choice hub 4-0:1.0: USB hub found hub 4-0:1.0: 2 ports detected ACPI: PCI Interrupt 0000:00:13.3[B] -> GSI 17 (level, low) -> IRQ 209 ohci_hcd 0000:00:13.3: OHCI Host Controller ohci_hcd 0000:00:13.3: new USB bus registered, assigned bus number 5 ohci_hcd 0000:00:13.3: irq 209, io mem 0xfe7fb000 usb usb5: configuration #1 chosen from 1 choice hub 5-0:1.0: USB hub found hub 5-0:1.0: 2 ports detected ACPI: PCI Interrupt 0000:00:13.4[C] -> GSI 18 (level, low) -> IRQ 217 ohci_hcd 0000:00:13.4: OHCI Host Controller ohci_hcd 0000:00:13.4: new USB bus registered, assigned bus number 6 ohci_hcd 0000:00:13.4: irq 217, io mem 0xfe7fa000 usb usb6: configuration #1 chosen from 1 choice hub 6-0:1.0: USB hub found hub 6-0:1.0: 2 ports detected USB Universal Host Controller Interface driver v3.0 md: raid1 personality registered for level 1 SCSI subsystem initialized libata version 3.00 loaded. ahci 0000:00:12.0: version 3.0 GSI 20 sharing vector 0xE1 and IRQ 20 ACPI: PCI Interrupt 0000:00:12.0[A] -> GSI 22 (level, low) -> IRQ 225 ahci 0000:00:12.0: controller can't do 64bit DMA, forcing 32bit ahci 0000:00:12.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA mode ahci 0000:00:12.0: flags: ncq sntf ilck pm led clo pmp pio slum part scsi0 : ahci scsi1 : ahci scsi2 : ahci scsi3 : ahci ata1: SATA max UDMA/133 abar m1024@0xfe7ff800 port 0xfe7ff900 irq 225 ata2: SATA max UDMA/133 abar m1024@0xfe7ff800 port 0xfe7ff980 irq 225 ata3: SATA max UDMA/133 abar m1024@0xfe7ff800 port 0xfe7ffa00 irq 225 ata4: SATA max UDMA/133 abar m1024@0xfe7ff800 port 0xfe7ffa80 irq 225 ata1: softreset failed (device not ready) ata1: failed due to HW bug, retry pmp=0 ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: ATA-8: Hitachi HDS721050CLA362, JP2OA39C, max UDMA/133 ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32) ata1.00: SB600 AHCI: limiting to 255 sectors per cmd ata1.00: SB600 AHCI: limiting to 255 sectors per cmd ata1.00: configured for UDMA/133 ata2: softreset failed (device not ready) ata2: failed due to HW bug, retry pmp=0 ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: ATA-8: Hitachi HDS721050CLA362, JP2OA39C, max UDMA/133 ata2.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32) ata2.00: SB600 AHCI: limiting to 255 sectors per cmd ata2.00: SB600 AHCI: limiting to 255 sectors per cmd ata2.00: configured for UDMA/133 ata3: SATA link down (SStatus 0 SControl 300) ata4: SATA link down (SStatus 0 SControl 300) Vendor: ATA Model: Hitachi HDS72105 Rev: JP2O Type: Direct-Access ANSI SCSI revision: 05 SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB) sda: Write Protect is off sda: Mode Sense: 00 3a 00 00 SCSI device sda: drive cache: write back SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB) sda: Write Protect is off sda: Mode Sense: 00 3a 00 00 SCSI device sda: drive cache: write back sda: sda1 sda2 sda3 sd 0:0:0:0: Attached scsi disk sda Vendor: ATA Model: Hitachi HDS72105 Rev: JP2O Type: Direct-Access ANSI SCSI revision: 05 SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB) sdb: Write Protect is off sdb: Mode Sense: 00 3a 00 00 SCSI device sdb: drive cache: write back SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB) sdb: Write Protect is off sdb: Mode Sense: 00 3a 00 00 SCSI device sdb: drive cache: write back sdb: sdb1 sdb2 sdb3 sd 1:0:0:0: Attached scsi disk sdb device-mapper: uevent: version 1.0.3 device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised: dm-devel(a)redhat.com device-mapper: dm-raid45: initialized v0.2594l md: Autodetecting RAID arrays. md: autorun ... md: considering sdb3 ... md: adding sdb3 ... md: sdb1 has different UUID to sdb3 md: adding sda3 ... md: sda1 has different UUID to sdb3 md: created md1 md: bind<sda3> md: bind<sdb3> md: running: <sdb3><sda3> raid1: raid set md1 active with 2 out of 2 mirrors md: considering sdb1 ... md: adding sdb1 ... md: adding sda1 ... md: created md0 md: bind<sda1> md: bind<sdb1> md: running: <sdb1><sda1> raid1: raid set md0 active with 2 out of 2 mirrors md: ... autorun DONE. kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. SELinux: Disabled at runtime. SELinux: Unregistering netfilter hooks type=1404 audit(1278326037.818:2): selinux=0 auid=4294967295 ses=4294967295 input: PC Speaker as /class/input/input0 e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k3.1 e1000e: Copyright (c) 1999-2008 Intel Corporation. ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 16 (level, low) -> IRQ 193 PCI: Setting latency timer of device 0000:02:00.0 to 64 EDAC MC: Ver: 2.0.1 Jul 1 2010 EDAC amd64_edac: Ver: 3.2.0 Jul 1 2010 Floppy drive(s): fd0 is 1.44M e1000e 0000:02:00.0: Warning: detected ASPM enabled in EEPROM sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 1:0:0:0: Attached scsi generic sg1 type 0 eth0: (PCI Express:2.5GB/s:Width x1) 40:61:86:ec:c0:45 eth0: Intel(R) PRO/1000 Network Connection eth0: MAC: 2, PHY: 2, PBA No: ffffff-0ff ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 209 PCI: Setting latency timer of device 0000:03:00.0 to 64 e1000e 0000:03:00.0: Warning: detected ASPM enabled in EEPROM eth1: (PCI Express:2.5GB/s:Width x1) 40:61:86:ec:c0:46 eth1: Intel(R) PRO/1000 Network Connection eth1: MAC: 2, PHY: 2, PBA No: ffffff-0ff piix4_smbus 0000:00:14.0: Found 0000:00:14.0 device EDAC amd64: This node reports that Memory ECC is currently disabled, set F3x44[22] (0000:00:18.3). EDAC amd64: WARNING: ECC is disabled by BIOS. Module will NOT be loaded. Either Enable ECC in the BIOS, or set 'ecc_enable_override'. Also, use of the override can cause unknown side effects. amd64_edac: probe of 0000:00:18.2 failed with error -22 shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 floppy0: no floppy controllers found Floppy drive(s): fd0 is 1.44M floppy0: no floppy controllers found lp: driver loaded but no devices found ACPI: Power Button (FF) [PWRF] ACPI: Power Button (CM) [PWRB] ACPI: Mapper loaded dell-wmi: No known WMI GUID found md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. device-mapper: multipath: version 1.0.5 loaded EXT3 FS on md1, internal journal Adding 1052248k swap on /dev/sda2. Priority:-1 extents:1 across:1052248k Adding 1052248k swap on /dev/sdb2. Priority:-2 extents:1 across:1052248k powernow-k8: Found 1 Quad-Core AMD Opteron(tm) Processor 1381 processors (4 cpu cores) (version 2.20.00) powernow-k8: 0 : fid 0x0 gid 0x0 (2500 MHz) powernow-k8: 1 : fid 0x0 gid 0x0 (1800 MHz) powernow-k8: 2 : fid 0x0 gid 0x0 (1300 MHz) powernow-k8: 3 : fid 0x0 gid 0x0 (800 MHz) ip_tables: (C) 2000-2006 Netfilter Core Team Netfilter messages via NETLINK v0.30. ip_conntrack version 2.4 (8192 buckets, 65536 max) - 304 bytes per conntrack NET: Registered protocol family 10 lo: Disabled Privacy Extensions IPv6 over IPv4 tunneling driver ADDRCONF(NETDEV_UP): eth0: link is not ready e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None eth0: 10/100 speed: disabling TSO ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready ADDRCONF(NETDEV_UP): eth1: link is not ready Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged Machine check events logged

3 9

question on modprobe.conf
by Jerry Geis 07 Jul '10

07 Jul '10

I download the RHEL 6b2 and noticed the modprobe.conf was no longer present. I used modprobe.conf to place "options" for ethernet drivers like which order to install the drivers. e1000e before forcedeth - things like that. Anyway - seems like that file is no longer present. what is the "future" way to handle driver options? Thanks Jerry

7 8

Logwatch with Postfix and Amavisd-new
by John Hinton 07 Jul '10

07 Jul '10

I'm trying to get usable reports out of logwatch on this new system. Looks like the reports are running in an 'unformatted' mode under Postfix/Amavisd. I found a couple of programs, postfix-logwatch and amavisd-logwatch. These sound promising. I am running Amavisd as the frontend to Postfix. Is anybody running either of these as a logwatch filter? If so, is it repetitive to run both, or should I consider only one of above and which would provide the best results? And, are these in any of the CentOS repositories? Couldn't find them in Dag's. Thanks! John Hinton

5 4

how to use my rpm to replace default old version rpm in centos?
by ma qiang 07 Jul '10

07 Jul '10

Hi all, I have installed a software using "yum install ...", but the version of rpm in centos is too old. I have made a new rpm from source, and now I'd like to use this to replace the old version rpm in centos cd. So, When I install centos for my computer, I can choose to install it automaticly. In my guess, I have to replace the rpm at first. After that, I need to edit something such as dependencies. Who can tell me how? Thanks a lot. Best Wishes! Qiang Ma

3 3

disable dvd write
by grace rante 07 Jul '10

07 Jul '10

hi, does anybody know how to disable dvd/cd write access in centos 5.3? thanks

3 2

Ext4 safe for production use?
by Emmanuel Noobadmin 07 Jul '10

07 Jul '10

As part of my current research for upcoming setup, I started reading up on filesystems (was actually looking up fencing which leds to node crash and file integrity on different fs) to see if there would be any significant improvement to using a different filesystem for networked storage. e.g. glusterfs on top of ext4 nodes. Initially, the reading suggested that ext4 would provide a significant performance boost. Quite possibly since it delays write longer, latencies of the network storage is hidden even better especially for temporary files. After subsequent reading, it seems that the cost of the massive delay allocation that could blow up really bad in the event the system crash. However, this may also be limited to poorly written applications, i.e. since some massive arguments last year over Firefox 3.0, sqlite and ext4 problems, ext4 now detects situations where it should flush to disk immediately to avoid zero length files on crash. Assuming I'm using the most likely disk writing applications I'm using is KVM, exim, dovecot, mysql and postgresql, would ext4 be safe for production use or should I stick to ext3?

1 0

DNS or firewall problem
by Thomas Dukes 07 Jul '10

07 Jul '10

Been working this for over a month now and I'm stumped. Everything was working until the 'crash'. Backup was no good so I did a fresh install of centos 5.5. Trying to get things back like they were but its been a really long time since I had to set things up from scratch, Redhat 2.0. My centos server acts as a gateway/firewall/router for my home network. Internal machines can access the internet. The server can access the internet. I can access my server/services from outside the local network but internal machines cannot. Any ideas/suggestions? Thanks, --Eddie

8 22

test
by mattias jonsson 07 Jul '10

07 Jul '10

2 2

Problem with Gnome (or nautilus)
by Basil Kurian 06 Jul '10

06 Jul '10

I have upgraded form 5.4 to 5.5 . after that i 'm having problem with nautilus .... some strange errors like "not on the same file system" occurs during file operation like moving deleting etc..... after that i did a fresh installation of 5.5 . then aslo same problem .. does anyone experienced such a problem ?? Now i'm using 5.3 . Also the Bind DNS server in 5.4 and 5.5 seems to be buggy . I don't have any problem with BIND on 5.3

2 4

why i can not put my swap files in /dev?
by Tang Jianwei 06 Jul '10

06 Jul '10

I tried to create some swap files in /dev directory for my desktop. the dd and mkswap were ok. but when I try to swapon it, i get this: # swapon /dev/myswap swapon: /dev/myswap: Invalid argument but when I mv the file to some other directory like /mnt or /, the swapon works. could sb. tell me why? -- Tang Jianwei

7 11

CentOS Cluster
by Torintino T 06 Jul '10

06 Jul '10

Dear All, I am newbie to Linux Clustering, i have 2 standalone CentOS servers, i want to setup a cluster on those servers, to synchronize between each other, and to make a one as standby to the other, if a one fails the other will switchover. I will mostly use Apache, Mysql, and PHP. I have read the "Cluster Administration" document, i found that there are multiple methods to setup the cluster, actually i want to ask expert people in the clustering, which method is the most proper one, and should i have use a fence device, which one i will preferably use. Thanks for assistance. _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. https://signup.live.com/signup.aspx?id=60969

6 10

setuproot: moving /dev/failed:No such file or directory
by Bernard Lheureux 06 Jul '10

06 Jul '10

Since my upgrade of the CentOS 5.4 to 5.5, it is impossible to boot from kernel 2.6.18-194.xx but older kernel (2.6.18-164-xx) boots perfectly The message I get is: setuproot: moving /dev/failed:No such file or directory* *And I get a Kernel Panic... It seems like the system was unable to mount /dev in ram, then it cannot find it... How is it possible and how to solve this ?* *-- (°- Bernard Lheureux Gestionnaire des MailingLists ML, TechML, LinuxML //\ http://www.bbsoft4.org/Mailinglists.htm ** MailTo:root@bbsoft4.org v_/_ http://www.bbsoft4.org/<<<<<< *>>>>>> http://www.portalinux.org/ ------------------------------------------------------------------------

2 1

DRBD update
by Daniel Bruno 05 Jul '10

05 Jul '10

Hello, Someone had some problem recently with DRBD updates? Thanks, -- Daniel Bruno http://danielbruno.eti.br

1 0

Limiting fuse-mounted NTFS drive access?
by Scott Ehrlich 05 Jul '10

05 Jul '10

I have a CentOS 5.5 system that is dual-boot CentOS 5.5 and Windows XP w/SP3 formatted with NTFS (for the Windows partition, of course). I have installed fuse (ntfs-3g) to allow read/write access to the NTFS partition from CentOS. No regular user has sudo. What is the best way to limit the access a user logging into the CentOS from mangling or changing data in unwanted areas of the fuse-mounted NTFS partition? I presume this would be somewhere in /etc/fstab, but what should the mount line say for at least write limitations? Thanks. Scott

2 1

centos 5.2
by Roland RoLaNd 05 Jul '10

05 Jul '10

Hello, where can i get centos 5.2 64 bit ? all i can find is 5.5 ... any help? _________________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. https://signup.live.com/signup.aspx?id=60969

3 2

text to html
by Jozsi Avadkan 05 Jul '10

05 Jul '10

input: http://pastebin.com/raw.php?i=MqPXZwc3 output: http://pastebin.com/raw.php?i=8QCkp4yv it will be a long day.. :D could someone please help with it? i have to make a "one liner" that get's the input, and gives the mentioned output.

6 9

prelink
by Frank Cox 05 Jul '10

05 Jul '10

The above discussion of prelink gave me pause for thought... I have a "suite" of programs that I install in their own directory, along with their datafiles, under /opt. Would it be a good idea to add that directory to /etc/prelink.conf? What could go wrong? -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com

2 2

qemu
by mattias jonsson 05 Jul '10

05 Jul '10

How to use qemu with a network brdige The bridge should have dhcp Not nat

6 9

ESXi, KVM or Xen?
by Emmanuel Noobadmin 03 Jul '10

03 Jul '10

Which of these would be the recommended virtualization platform for mainly CentOS guest on CentOS host for running a virtualized mail server? From what I've read, objectively it seems that VMWare's still the way to go although I would had like to go with Xen or KVM just as a matter of subjective preference. VMWare's offering seems to have the best support and tools, plus likely the most matured of the options. Also given their market dominance, unlikely to just up and die in the near future. Xen would had been a possible option except Redhat appears to be focusing on KVM as their virtualization platform of choice to compete with VMWare and Citrix. So maybe Xen support will be killed shortly. Plus the modified xen kernel apparently causes conflict with certain software, at least based on previous incidents where I'd been advised not to use the CentOS xen kernel if not using xen virtualization. KVM would be ideal since it's opensource and would be supported in CentOS as far as can be reasonably foreseen. However, looking at available resources, it seems to have these key disadvantages 1. Poorer performance under load. http://wiki.xensource.com/xenwiki/Open_Topics_For_Discussion?action=AttachF… This 2008 XenSummit paper indicates that it dies on heavy network load as well as when there are more than a few VM doing heavy processing at the same time. But that's two years ago and they weren't using paravirtual drivers it seems. http://vmstudy.blogspot.com/2010/04/network-performance-test-xenkvm-vt-d.ht… This blog testing out Xen/KVM pretty recently. While the loads are not as drastic and neither the difference, it still shows that KVM does lag behind by about 10%. This is a concern since I plan to put storage on the network and the most heavy load the client has is basically the email server due to the volume plus inline antivirus and anti-spam scanning to be done on those emails. Admittedly, they won't be seeing as much emails as say a webhost but most of their emails come with relatively large attachments. 2. Security Some sites point out that KVM VM runs in userspace as threads. So a compromised guest OS would then give intruder access to the system as well as other VMs. Should I really be concerned or are these worries only for extreme situations and that KVM is viable for normal production situations? Are there other things I should be aware of?

7 7

Help: Please help me size my server requirements
by Sanjay Arora 03 Jul '10

03 Jul '10

I am looking to build a Workgroup Server. (Should be compatible/certified with both XEN & VMware hypervisors, as I am not sure which one I will settle with...comments requested) To run baremetal on hypervisor, with each of the following services running virtualized with minimum OS install (CentOS 5.x, latest stable release). - Multi-homed router-cum-border firewall (Access to Network Card limited to this instance...will act as router for rest of virtual machines). - DNS Server (djbDNS). - Mail Server (Qmail). - News Server (INN). - Webserver (Apache). - RDBMS (postgreSQL...highest load). In addition to above the server to provide Windows RDP &/or Linux Desktop Thinclient to 5 users running diskless thin clients or old desktops (second highest load). Server to have adequate amount of memory for the above and 500 GB/1 TB RAID 5 or better using SATA disks. What Server Specs. I am looking at? I understand DB load is major in this but assuming moderate to medium db load, what do I need. Will seperate the server & Thinclient server six months/year down the road. What budget? Recommendations for a processor/motherboard/ram/disks/sata card? With best regards and thanks in advance. Sanjay Arora.

1 0

kvm as non-root user
by David McGuffey 03 Jul '10

03 Jul '10

Tried as I might, I cannot get kvm on CentOS 5.4 to run as a non-root user. Have Googled and followed guidance I've found (put the regular user in the kvm group, change permissions on several files, etc.). Anyone have decent (e.g., working) guidance on how to do this? Dave M

2 3

Windows 2003 AD, Winbind, Kerberos and NFSv4
by James A. Peltier 03 Jul '10

03 Jul '10

Hi All, I'm having a bit of difficulty getting a CentOS 5.5 Kerberized NFSv4 server working. This server is configured as a Winbind client to a Windows 2003 Active Directory. I've successfully bound it to AD and I am able to authenticate. I've successfully created a NFSv4 entry in /etc/exports to export the /exports directory and I can successfully mount a non-Kerberized NFSv4 mount on a client machine. I now want to take it to the next step and add Kerberos and it doesn't seem to be working for me. Below are my configurations and the steps I performed. Fresh install of CentOS 5.5. Non-Kickstarted. Wanted to get it working manually first. Used the First Boot Authentication Wizard to configure Winbind Support for User Information. Configured Winbind and Kerberos under the Authentication Tab Checked Local auth is sufficient and Create home directories under options The computer successfully joins the domain and appears in the Computer container in AD. Below is the extract from /etc/samba/smb.conf for authconfig plus what I changed, everything else is stock. I disabled the firewall and SELinux is running in permissive mode on both the test server and test client. #======================= Global Settings ===================================== [global] #--authconfig--start-line-- # Generated by authconfig on 2010/07/01 18:32:54 # DO NOT EDIT THIS SECTION (delimited by --start-line--/--end-line--) # Any modification may be deleted or altered by authconfig in future workgroup = MY.AD.NAME password server = MY.AD.SERVER realm = MY.AD.NAME security = ads idmap uid = 16777216-33554431 idmap gid = 16777216-33554431 template shell = /bin/bash #--authconfig--end-line-- #-- my additions/changes-start -- template homedir = /home/%U winbind use default domain = true winbind offline logon = true winbind nested groups = true winbind refresh tickets = true use spnego = yes use kerberos keytab = yes #-- my additions/changes-end -- It also created an appropriate, I believe, /etc/krb5.conf to which I removed only the .example.com stuff resulting in the following file. [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = MY.AD.NAME dns_lookup_realm = false # with and without true tried for these dns_lookup_kdc = false ticket_lifetime = 24h forwardable = yes [realms] MY.AD.NAME = { kdc = MY.AD.SERVER admin_server = MY.AD.SERVER kdc = MY.AD.SERVER } [domain_realm] my.ad.name = MY.AD.NAME .my.ad.name = MY.AD.NAME [appdefaults] pam = { debug = false ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false } If I log into this host I am properly issued a Kerberos ticket from AD so it would appear that Kerberos is working properly [jpeltier@oak ~]$ ssh aconite klist jpeltier@aconite's password: klist: You have no tickets cached Ticket cache: FILE:/tmp/krb5cc_16777216_ltvWwy Default principal: jpeltier(a)MY.AD.NAME Valid starting Expires Service principal 07/02/10 10:46:43 07/02/10 20:46:43 krbtgt/MY.AD.NAME(a)MY.AD.NAME renew until 07/02/10 20:46:43 Kerberos 4 ticket cache: /tmp/tkt16777216 [jpeltier@oak ~]$ Now I configured NFSv4 exports on the server /exports *(rw,fsid=0) Edited /etc/sysconfig/nfs to change # Set to turn on Secure NFS mounts. #SECURE_NFS="yes" to # Set to turn on Secure NFS mounts. SECURE_NFS="yes" restarted NFS service and it appears as an export [root@aconite ~]# /etc/init.d/nfs restart Shutting down NFS mountd: [ OK ] Shutting down NFS daemon: [ OK ] Shutting down NFS quotas: [ OK ] Shutting down NFS services: [ OK ] Shutting down RPC svcgssd: [ OK ] Starting RPC svcgssd: [ OK ] Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ] Starting NFS mountd: [ OK ] [root@aconite ~]# exportfs /exports <world> [root@aconite ~]# To support NFSv4 with Kerberos security, we also need to generate service principal for NFS: [root@aconite ~]# net -U administrator ads keytab add nfs which then looks like this [root@aconite ~]# klist -k Keytab name: FILE:/etc/krb5.keytab KVNO Principal ---- -------------------------------------------------------------------------- 3 host/aconite.my.ad.name(a)MY.AD.NAME 3 host/aconite.my.ad.name(a)MY.AD.NAME 3 host/aconite.my.ad.name(a)MY.AD.NAME 3 host/aconite(a)MY.AD.NAME 3 host/aconite(a)MY.AD.NAME 3 host/aconite(a)MY.AD.NAME 3 ACONITE$(a)MY.AD.NAME 3 ACONITE$(a)MY.AD.NAME 3 ACONITE$(a)MY.AD.NAME 3 nfs/aconite.my.ad.name(a)MY.AD.NAME 3 nfs/aconite.my.ad.name(a)MY.AD.NAME 3 nfs/aconite.my.ad.name(a)MY.AD.NAME 3 nfs/aconite(a)MY.AD.NAME 3 nfs/aconite(a)MY.AD.NAME 3 nfs/aconite(a)MY.AD.NAME Test on the client [root@celastrina ~]# showmount -e aconite Export list for aconite: /exports * [root@celastrina ~]# mount -t nfs4 aconite:/ /mnt [root@celastrina ~]# mount |grep -i nfs4 aconite:/ on /mnt type nfs4 (rw,addr=199.60.1.84) [root@celastrina ~]# So as you can see everything is now working *without* Kerberos. However, if I change the /etc/exports file on aconite to [root@aconite ~]# cat /etc/exports /exports gss/krb5(rw,fsid=0) [root@aconite ~]# exportfs /exports gss/krb5 and then try to mount with the -o sec=krb5 on the client [root@celastrina ~]# mount -t nfs4 -o sec=krb5 aconite:/ /mnt mount.nfs4: Permission denied and the entry in /var/log/messages on celastrina is Jul 2 11:21:57 celastrina rpc.gssd[3302]: Using keytab file '/etc/krb5.keytab' Jul 2 11:21:57 celastrina rpc.gssd[3302]: WARNING: Failed to obtain machine credentials for connection to server aconite.my.ad.name nothing appears in the logs on aconite. If you've been kind enough to read this entire thread could you be kind enough to let me know what I am missing or doing wrong? It seems so close now that I can taste it, but this one last piece doesn't seem to want to fall into place. :( -- James A. Peltier Systems Analyst (FASNet), VIVARIUM Technical Director HPC Coordinator Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpeltier(a)sfu.ca Website : http://www.fas.sfu.ca | http://vivarium.cs.sfu.ca http://blogs.sfu.ca/people/jpeltier MSN : subatomic_spam(a)hotmail.com TEAMWORK There's power in numbers. Learn to work together.

3 4

File sharing solution
by Jussi Hirvi 02 Jul '10

02 Jul '10

I would like to offer my isp clients a solution for sharing (big) files, basically on one-to-one basis. This is how I imagine it: - an anonymous or registered user can upload a file - on response (s)he will get a file-specific (or batch-specific) username/password - (s)he can send a link and un/pw by email - the receiver can download the file - the file will be automatically deleted from the server in n days There must exist an opensource solution for this, but I could not find it by google. Where to look for it? - Jussi -- Jussi Hirvi * Green Spot Topeliuksenkatu 15 C * 00250 Helsinki * Finland Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms) jussi.hirvi(a)greenspot.fi * http://www.greenspot.fi

2 2

NIC config documentation?
by Les Mikesell 01 Jul '10

01 Jul '10

Does anyone have a favorite howto or other succinct document that that describes how to set up networking on a multi-nic host when you don't know ahead of time which nic is which? I usually muddle through it by plugging in one wire at a time, using mii-tool to see which link is up, then ifconfig on that interface to get the HWaddr to put in the corresponding /etc/sysconfig/network-scipts/ifcfg-eth? file. But now I need to train some other people how to do it and it seems like there should be a better way. -- Les Mikesell lesmikesell(a)gmail.com

1 0

Firefox slower on GMail since update to CentOS 5.5
by Mathieu Baudier 01 Jul '10

01 Jul '10

Hello, since I upgraded from CentOS x86_64 5.4 to 5.5, I noticed that Firefox has become significantly slower on GMail (or Google Apps Mail). The page becomes slow to scroll as soon as there are more than a few mails in a conversation (like in a typical CentOS mailing list thread). Did anyone else notice that as well? (I guess that I'm not the only GMail user around) Could I have missed something / do something wrong? More details: - I did a fresh install from the 5.5 install DVD, keeping only the home directories - I'm using the Nvidia driver from elrepo (but I had the pb also with the default driver) Cheers, Mathieu

8 20

Anyone seen the Adobe update?
by m.roth＠5-cent.us 01 Jul '10

01 Jul '10

Well, here it is, the day after the Adobe update was announced, and they say that I should go for 9.3.3... but there's still no update visible to yum. Anyone have an ETV on this? mark

1 0

GNBD/LVM problem
by Kwan Lowe 01 Jul '10

01 Jul '10

Hello all: I'm having a strange problem with GNBD and LVM on two fully updated CentOS 5.5 x86_64 systems. On node1, I have exported a gnbd volume. lvcreate -L 500M -n mirrortest_lv01 mirrorvg gnbd_serv gnbd_export -d /dev/mirrorvg/mirrortest_lv01 -e node1_lv01 On node2 I have imported the volume: gnbd_import -i node1 Next, on node2 I attempt to create a mirrored LV with the imported GNBD volume and a local disk: fdisk /dev/gnbd/node1_lv01 then create an LVM partition fdisk /dev/sdb then create an LVM partition I can then create a volume group with those two disks: pvs vgcreate mirrorvg /dev/sdb1 /dev/gnbd0 The problem occurs when I try to create a mirrored LV using the above VG. [root@vm-helios-002 ~]# lvcreate --mirrorlog core -L 256M -n mirroredlv01 -m 1 mirrortestvg Insufficient suitable allocatable extents for logical volume : 64 more required Unable to allocate extents for mirror(s). It doesn't matter what disk sizes are available. Even creating a non-mirrored LV causes issues: [root@vm-helios-002 ~]# lvcreate -L 256M -n mirroredlv01 mirrortestvg Error locking on node 192.168.8.152: device-mapper: create ioctl failed: Device or resource busy Error locking on node 192.168.8.151: Volume group for uuid not found: xCTR5M2kOEBiLM7eSRntez2y2VKy9vvqnSs6LTC99x9kIsAdNI2l8CH90h6BYKsH Aborting. Failed to activate new LV to wipe the start of it. [root@vm-helios-002 ~]# The other issue that's occurring is that even if I remove the GNBD PV from the mirrortestvg, it still gives the error (i.e., using just local disk). Not sure where to look at this point. I suspect it has something to do with the cluster locking, but the configuration is really basic and specifies no clustered volumes.

1 0

RHEL 6b2 Release
by b.j. mcclure 01 Jul '10

01 Jul '10

For those who might be interested, RHEL 6b2 has just been announced. http://www.redhat.com/rhel/beta Cheers, B.J. CentOS 5.5, Linux 2.6.18-194.3.1.el5 x86_64 10:47:08 up 8 days, 14:45, 1 user, load average: 0.56, 0.55, 0.49

5 5

An Interview with Karan
by didi 01 Jul '10

01 Jul '10

A nice little insight into CentOS : http://distrowatch.com/weekly.php?issue=20100628#feature Cheers Didi p.s. Sorry if this has already been posted :) -- Hoffmann Geerd-Dietger http://contact.ribalba.de

4 3

Re: [CentOS] Update update failed on filesystem-2.4.0-3.el5.x86_64
by Emmanuel Noobadmin 01 Jul '10

01 Jul '10

On 7/1/10, Bond Masuda <bond.masuda(a)jlbond.com> wrote: > I believe the filesystem RPM basically owns all the main directories on the > system. One of them being /media. I suspect you have something mounted on > /media, and since installing filesystem will try to create /media, that > results in an error it wasn't expecting. > > can you umount /media and try again? I think that would allow 'filesystem' > to complete its install process.... Thank you very much for the help, didn't realized /media was still mounted.

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Update update failed on filesystem-2.4.0-3.el5.x86_64
by Emmanuel Noobadmin 01 Jul '10

01 Jul '10

I was doing a upgrade of an existing machine from 5.4 to 5.5. Everything else worked except for this rpm filesystem-2.4.0-3.el5.x86_64 It seems that it's trying to unpack the file into the CentOS DVD mount point > Error unpacking rpm package filesystem-2.4.0-3.el5.x86_64 > error: unpacking of archive failed on file /media: cpio: lsetfilecon Would it be safe to manually download the rpm then install it locally, or would that not work either? I haven't restart the machine because I'm concerned that not updating this file could mean the filesystem becomes inaccessible.

2 1

How can binaries be different when package versions are identical? (mkfs.ext3 on CentOS 5.4)
by Aleksey Tsalolikhin 01 Jul '10

01 Jul '10

Situation: two similar servers, both with CentOS 5.4 64-bit. Making an ext3 filesystem on one takes seconds, on the other minutes. Partition Size Server 1 Server 2 1 GB 0.7 sec 0.3 sec 4 GB 2.5 sec 1.2 sec 40 GB 15 sec 13 min WTF e2fsprogs RPM is e2fsprogs-1.39-23.el5 on both systems mkfs --version reports "util-linux 2.13-pre7" on both systems mkfs -V reports the same on both systems (mke2fs 1.3 (29-May-2006) Using EXT2FS Library version 1.39) file size on mkfs and mkfs.ext3 binaries is identical However, checksum on these binaries differs across servers, and "cmp" reports files are different I took "mkfs" and "mkfs.ext3" from server 1, put them on server 2, and got an improvement: 40 GB 15 sec 3 min Just out of curiousity, I ran "rpm -V e2fsprogs" to see if rpm would pick up the difference and sure enough, it complained mkfs.ext3 changed. Both of these servers have CentOS 5.4; Server 1 was installed in Dec 2009, Server 2 in April 2010. I'd like to: (a) account for the difference in the binaries, and (b) see if something else is different that I can make the same to get the mkfs.ext3 time down to 15 sec on both systems. Solving (a) should shed light on (b). Any ideas? Best, Aleksey

6 7

Live CD problems
by drew einhorn 01 Jul '10

01 Jul '10

Hi, I'm trying to repair a remote system using the Live CD. I have VPN access to the subnet where it lives. An onsite person is booting from cd, and running a small script I provided to tweak the default firewall rule set to allow incoming ssh, and set a password for the centos user and start sshd so far so good I can remotely access the system. the problem is the live cd environment is very fragile. I need to rebuild the contents of a couple filesystems, so I need to umount them and remount them rw. If I make a mistake in a mount command instead of giving an error message and letting me try again. The system freezes and any other ssh session freezes, ahnd will not accept any more incoming ssh connections. the only way I have found to recover is have the onsite person reboot from cd and rerun the script allowing incoming ssh again. Hmm. I should try to talk the onsite person through trying something else from the console. Argghhh!!! This is more than just an annoyance. -- Drew Einhorn "You can see a lot by just looking." -- Yogi Berra

2 1

firewire follow up
by aurfalien 30 Jun '10

30 Jun '10

A bit more info about my system; I edited /etc/modprobe.d/blacklist-firewire and commented out the blacklist like so it looks like so; #blacklist firewire-ohci Running lspci returns; 10:0b.0 Firewire (IEEE 1394): Texas Instruments TSB82AA2 IEEE-1394b Link Layer Controller (rev 02) lsmod | grep firewire returns; firewire_sbp2 50897 0 firewire_core 79305 1 firewire_sbp2 scsi_mod 196953 5 firewire_sbp2,scsi_dh,sg,libata,sd_mod - aurf

1 0

firewire in centos 5.4 - do i really need the centosplus kernel
by aurfalien 30 Jun '10

30 Jun '10

Hi list, I'm running 2.6.18-164-15.1 xen kernel. Any way to get firewire to work on it? I've read plenty about needing the centosplus kernel but is that really necessary? - aurf

1 0

Grub fails on dell optiplex 320
by Jason Pyeron 30 Jun '10

30 Jun '10

After reading: *[1] http://forums.fedoraforum.org/showthread.php?t=141178 *[2] https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_id=2… forum=39 *[3] http://wirelessness.wordpress.com/2007/02/07/installing-fedora-linux-on-a-d… ptiplex-320/ *[4] http://lists.us.dell.com/pipermail/linux-desktops/2007-January/000148.html 1. I booted with linux rescue 2. chroot /mnt/sysimage 3. yum upgrade 4. reboot 5. 2.6.18-194.3.1.el5 6. hang... Per [4] this should have been fixed in 2.6.20 (2007), did this get back ported by the upstream? The LILO solution wont work because we have to use LVM. Suggestions? -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

1 1

uuid_fixer?
by m.roth＠5-cent.us 30 Jun '10

30 Jun '10

Anyone know of a repository with uuid_fixer? Now that I've rebuilt this thing, I need to recover the LVM that the raid comprises.... mark

1 0

Anyone seen the Adobe update?
by m.roth＠5-cent.us 30 Jun '10

30 Jun '10

I get an email from security, I see the article on slashdot, and other places, that Adobe's issued an update to acroread... but yum update AdobeReader_enu is still telling me there's no update. Has anyone seen it yet, in the repositories? mark

2 1

Devhelp had problem
by cjzjm100 30 Jun '10

30 Jun '10

when i opened Devhelp,there was a segment err even i had reinstall it. How can i fix it?

2 1

Dell R605 w/ Perc 6/i problem
by m.roth＠5-cent.us 30 Jun '10

30 Jun '10

I think there was just a thread 'bout this, and I didn't pay attention... and then I walked into our smallest server room to rebuild a server with CentOS... and that's what it is. The problem I'm having is this: there are two 1T SAS drives, raided, via the controller. There's also a 750G SATA drive. The Dell test suite sees it, and reports that SMART says it's fine. However, no matter what I do, the BIOS doesn't see it, and when I boot to linux text, fdisk only sees the raided 1t. Clues for the poor? I want to put the system on the SATA drive, leaving the raid for data. mark

6 7

Samba and " (and maybe other characters) in paths/files
by RedShift 30 Jun '10

30 Jun '10

Hello I have samba installed on my server, with a fileshare. When connecting to samba, using windows, filesnames with " (double quotes) in them become gibberish on the windows client. Under linux I connect to these fileshares using NFS, and the names are correct (I also created them this way). I've made a screenshot: http://users.webmind.be/~glenn/samba.PNG How can I fix this? Thanks, Glenn

7 11

fresh install of centos looking for non-existant /dev/hda : /dev/hda: open failed: No medium found
by Dave 30 Jun '10

30 Jun '10

# lvm pvs /dev/hda: open failed: No medium found Couldn't find device with uuid r5HNPO-l18V-XfJ7-9RXY-AaWC-a4YY-3oL5h7. PV VG Fmt Attr PSize PFree /dev/sda2 VolGroup01 lvm2 a- 232.72G 0 /dev/sdb1 VolGroup00 lvm2 a- 232.81G 32.00M unknown device VolGroup00 lvm2 a- 232.72G 32.00M I just installed the OS, did some tweaks, but did nothing to hardware. There was no /dev/hda listed when I went through the partitioning page of the install. Where did this come from? How do I get rid of it? Does it matter? mahalo, Dave

4 3

centos5.5 text install forcing me to add all disks to LVM volgroup
by Dave 30 Jun '10

30 Jun '10

Graphic installer doesn't like my graphics card, so I am using the text installer. I have two physical disks in my system. When I get to the "partitioning type" page, I choose "remove all partitions on selected drives [etc]" and put an asterisk next to sda, no asterisk next to sdb. I want to use sdb as a separate partition, no LVM, I figure I can set it up after installing. Then I hit 'OK' and go to the warning page, say yes. Review and modify partitioning layout - yes. So now I am looking at the partitioning page and I am surprised to see /dev/sdb and sdb1 down at the bottom, since that disk was *not* selected. I select sdb1 and try to delete, it says " unable to delete You cannot delete this partition: this parition is part of the LVM volume group 'volgroup00'". If I try to delete /dev/sdb1, it says I must choose a partiton. If i try to edit volgroup00, it says 'LVM volume groups can only be edited in the graphical installer." So, am I stuck? It seems like my only option is to go ahead and add both disks, then try to remove one of the disks after completing the install. Is there some sort of workaround for this? What if I actually had some data on that drive (fortunately I do not), would it get wiped by this? Mahalo, Dave

4 5

Re: [CentOS] [Ilugc] Anna University Syllabus and NRCFOSS‏
by Rajagopal Swaminathan 29 Jun '10

29 Jun '10

Greetings, On 6/29/10, Kenneth Gonsalves <lawgon(a)thenilgiris.com> wrote: > On Monday 28 June 2010 21:32:21 Murali M wrote: >> The billion dollar question among the computer users in India now! >> >> >> * Has NRC-FOSS done its job in promoting FOSS in India since 2005 ??? >> >> * If not, do we need such anorganization anymore ??? >> >> * Will Government of India Listen to lay computer users of India ??? >> > > instead of looking at wikipedia, I suggest you look at the following sites: > http://nrcfoss.au-kbc.org.in > http://nrcfosshelpline.in > > I would say nrc-foss has done it's job - and a lot of it thanks to the > active > support and participation of members of the Chennai, Mumbai, Pune LUGs as > well > as very many FOSS enthusiasts from all over India. I was wondering if a "NRCFOSS Partnered and Trusted" helpline wherein the "Trusted" implies "It is OK for alternate member round robin would take the current task at an agrred upon price (calculated based on agreed upon price per bench per duration) which is payable to the member who owns the process" plus whatever the service recipient would like to award the "Consortium" as a token of appreciation which will then be shared on the following basis: 1/2rd for the owner of the process, 1/3rd for the consortium, 1/6th for the mebers of consortium and 1/6th for further research and encouragement to the NextGen-<whatever> by sponsoring students education etc. Above, of course, are my humble opinions. Regards, Rajagopal PS: I am cc-ing to ilug-bom and centos so that the idea can be thrashed out and a viable support infrastructure can be achieved before next "couple of years".

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