Discuss January 2011

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276 participants
289 discussions

Centos installation Vs Disk partitioning
by Roland RoLaNd 10 Jan '11

10 Jan '11

Dear all, I'm trying to setup a development server which hosts a number of virtual hosts.and i need your advice with the following: 1. What's the best Filesystem to be used with an apache server?Relevant info: i. Mysql DB size' 1 GBii. Code directory size' 8 GB (Max file size is 5 KB)2. What's the best file structure to maximize seek time from drives?Relevant info:i. 2 X 1 TB SATAII 64MB blk Edition Int HDDii. 1 X 320GB General info: I have an additional directory which hosts all my code under /Development . this directory has a size of almost 300 GB.14 Virtual Hosts would be created on the server under /etc/httpd/VHosts/ I was thinking of the following structure: Drive A (320 GB): OS Drive B (1 TB): Mysql + /homeDrive C (1 TB): /development + /opt Would this work? i followed no guidelines with the above setup, it's just using my own logic. so i'd appreciate an expert advice with this. Thanks, --Roland

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how to recreate eth0 - Realtek 8169sc
by Rudi Ahlers 10 Jan '11

10 Jan '11

Hi all, Our intranet's WAN interface just stopped working yesterday, and I can't figure it out. The machine has a Gigabyte motherboard, with on-board RTL-8110SC/8169SC Gigabit Ethernet and D-Link PCI NIC for the LAN side. I can get into the LAN side without an issue, but can't see the WAN side at all. [root@intranet ~]# ifconfig eth0 up eth0: unknown interface: No such device lspci -v 01:01.0 Ethernet controller: D-Link System Inc DGE-528T Gigabit Ethernet Adapter (rev 10) Subsystem: D-Link System Inc DGE-528T Gigabit Ethernet Adapter Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 185 I/O ports at a000 [size=256] Memory at e1000000 (32-bit, non-prefetchable) [size=256] [virtual] Expansion ROM at 80000000 [disabled] [size=128K] Capabilities: [dc] Power Management version 2 01:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8110SC/8169SC Gigabit Ethernet (rev 10) Subsystem: Giga-byte Technology GA-MA69G-S3H Motherboard Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 201 I/O ports at a400 [size=256] Memory at e1001000 (32-bit, non-prefetchable) [size=256] [virtual] Expansion ROM at 80020000 [disabled] [size=128K] Capabilities: [dc] Power Management version 2 scanpci -v pci bus 0x0001 cardnum 0x01 function 0x00: vendor 0x1186 device 0x4300 D-Link System Inc DGE-528T Gigabit Ethernet Adapter STATUS 0x02b0 COMMAND 0x0017 CLASS 0x02 0x00 0x00 REVISION 0x10 BIST 0x00 HEADER 0x00 LATENCY 0x40 CACHE 0x08 BASE0 0x0000a001 addr 0x0000a000 I/O BASE1 0xe1000000 addr 0xe1000000 MEM MAX_LAT 0x40 MIN_GNT 0x20 INT_PIN 0x01 INT_LINE 0x0b pci bus 0x0001 cardnum 0x05 function 0x00: vendor 0x10ec device 0x8167 Realtek Semiconductor Co., Ltd. Device unknown CardVendor 0x1458 card 0xe000 (Card unknown) STATUS 0x02b0 COMMAND 0x0017 CLASS 0x02 0x00 0x00 REVISION 0x10 BIST 0x00 HEADER 0x00 LATENCY 0x40 CACHE 0x08 BASE0 0x0000a401 addr 0x0000a400 I/O BASE1 0xe1001000 addr 0xe1001000 MEM MAX_LAT 0x40 MIN_GNT 0x20 INT_PIN 0x01 INT_LINE 0x0a [root@intranet ~]# lsmod | grep 8169 r8169 77125 0 mii 38849 1 r8169 So the driver is there, or so it seems. rmmod r8169 dropped both NIC's and I had to reboot the (headless) server to get the D-Link working again. Removing, and re-adding the eth0 interface with system-config-network doesn't actually re-create the NIC either. So, how do I re-create it? Google search didn't reveal much, other that using the r8169 module, which is already loaded. No changes were made to the server in a long time, that I know of, and it's running kernel 2.6.18-194.11.4.el5 [root@intranet ~]# uname -a Linux intranet.lan 2.6.18-194.11.4.el5 #1 SMP Tue Sep 21 05:04:09 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux [root@intranet ~]# cat /etc/redhat-release CentOS release 5.5 (Final) Here's something interesting though: [root@intranet ~]# ifconfig -a | more __tmp1613210867 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:2883 errors:0 dropped:0 overruns:0 frame:0 TX packets:2198 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:276073 (269.6 KiB) TX bytes:315508 (308.1 KiB) Interrupt:201 Base address:0x2000 eth1 Link encap:Ethernet HWaddr 00:1C:F0:6E:B8:B4 inet addr:192.168.2.250 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::21c:f0ff:fe6e:b8b4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2883 errors:0 dropped:0 overruns:0 frame:0 TX packets:2198 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:276073 (269.6 KiB) TX bytes:315508 (308.1 KiB) Interrupt:185 lo Link encap:Local Loopback -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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389 Directory Server & CentOS
by Edgar Valdes 10 Jan '11

10 Jan '11

Hello Everyone, I was wondering if anyone out there has successfully implemented 389 as a replacement or to support to a windows AD environment. I'm just starting to toy around with it in a few vm's and trying to get a feel for integrating the two together. So far I have the 389 up now I'm just working on connecting a dummy user to authenticate with it along with populating and talking with a dummy AD server. Any insights/suggestions/opinions/recommendations would be appreciated, especially before I get waste deep. Regards, Edgar Valdes

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Could not setup Speed and Duplex on CentOS 5.5
by Sikkandar Dulkarnai 10 Jan '11

10 Jan '11

Greetings, I recently installed CentOS 5 on Dell PE 1750 server. I have noticed that the speed and duplex settings are 100 Half Duplex. I tried to change the duplex settings to full, but no success. I got the error message "Cannot get current device settings: Operation not supported". Does anyone else experience this issue?. Below is the error message and some more details about my box. Any help will be highly appreciated. [root@xentwo ~]# ethtool -s eth0 speed 100 duplex full autoneg on Cannot get current device settings: Operation not supported not setting speed not setting duplex not setting autoneg [root@xentwo ~]# ethtool -s eth0 speed 100 duplex full autoneg off Cannot get current device settings: Operation not supported not setting speed not setting duplex not setting autoneg [root@xentwo ~]# mii-tool eth0 SIOCGMIIPHY on 'eth0' failed: Operation not supported [root@xentwo ~]# cat /etc/issue CentOS release 5.5 (Final) Kernel \r on an \m [root@xentwo ~]# uname -a Linux xentwo 2.6.18-194.32.1.el5xen #1 SMP Wed Jan 5 19:32:33 EST 2011 i686 i686 i386 GNU/Linux [root@xentwo ~]# dmesg | grep eth0 eth0: Tigon3 [partno(BCM95704A6) rev 2002 PHY(5704)] (PCIX:133MHz:64-bit) 10/100/1000Base-T Ethernet 00:11:43:59:7c:ed eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[1] eth0: dma_rwctrl[769f4000] dma_mask[64-bit] ADDRCONF(NETDEV_UP): eth0: link is not ready tg3: eth0: Link is up at 100 Mbps, half duplex. tg3: eth0: Flow control is off for TX and off for RX. ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready eth0: no IPv6 routers present ADDRCONF(NETDEV_UP): peth0: link is not ready tg3: peth0: Link is up at 100 Mbps, half duplex. tg3: peth0: Flow control is off for TX and off for RX. ADDRCONF(NETDEV_CHANGE): peth0: link becomes ready device peth0 entered promiscuous mode xenbr0: port 2(peth0) entering forwarding state eth0: no IPv6 routers present [root@xentwo ~]# dmidecode | grep -i ether Type: Ethernet Description: Broadcom Gigabit Ethernet 1 Type: Ethernet Description: Broadcom Gigabit Ethernet 2 [root@xentwo ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:11:43:59:7C:ED inet addr:192.168.30.124 Bcast:192.168.30.255 Mask:255.255.255.0 inet6 addr: fe80::211:43ff:fe59:7ced/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:136658 errors:0 dropped:0 overruns:0 frame:0 TX packets:512 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:43152822 (41.1 MiB) TX bytes:75457 (73.6 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1522 errors:0 dropped:0 overruns:0 frame:0 TX packets:1522 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4285636 (4.0 MiB) TX bytes:4285636 (4.0 MiB) peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:137243 errors:0 dropped:0 overruns:0 frame:0 TX packets:511 errors:0 dropped:0 overruns:0 carrier:0 collisions:3 txqueuelen:1000 RX bytes:43740268 (41.7 MiB) TX bytes:76133 (74.3 KiB) Interrupt:18 Memory:fcf30000-fcf40000 vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:514 errors:0 dropped:0 overruns:0 frame:0 TX packets:136671 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:75781 (74.0 KiB) TX bytes:43153860 (41.1 MiB) virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:36 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:7967 (7.7 KiB) xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:135062 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:40981075 (39.0 MiB) TX bytes:0 (0.0 b) Regards, Sikkandar

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Q about dpi, fonts, gnome, Xorg etc
by Bob Hepple 09 Jan '11

09 Jan '11

This has been puzzling me for some time and despite bothering Auntie Google rather a lot, I've yet to find a satisfying answer. As an old-time (since 1981) unix and X guy, I've generally been fairly well-able to get fonts to behave in a rational manner. My needs are pretty simple - I just want 8-point (or 9-point etc) fonts to appear on the screen as 8-point font - ie more or less 8 * 1/72 inches = 2.82mm high. More or less, I'm not insisting it be exact, but at least not 1mm or 5mm high. In the (glorious) past I was able to look at xdpyinfo |egrep 'dimension| resolution' and check that Xorg was giving something reasonable.. eg dimensions: 1600x1200 pixels (423x317 millimeters) resolution: 96x96 dots per inch So far so good. With this new fangled gnome and fontconfig stuff, you also need to set up some X-resources with: xrdb -query |grep Xft Xft.antialias: 1 Xft.dpi: 96 Xft.hinting: 1 Xft.hintstyle: hintfull Xft.rgba: none ... and to inform gnome-settings-daemon with gnome-appearance-properties->Font->Details->dpi which is the same as: gconftool-2 -s --type float /desktop/gnome/font_rendering/dpi 96 It's that last step that bothers me - it's not "per display", so if I log in using a different X-server eg using VNC, I might well have a completely different dpi. For example, my home monitor is a good-old CRT with 152 dpi. I use 144 dpi as a multiple of 12 but if I log in through vnc without changing /desktop/gnome/font_rendering/dpi, the fonts are just wrong, wrong, wrong. If I then fix things up in that VNC session, when I come back to the physical monitor at 96 dpi, things are again wrong, until I fix it up again. But then the VNC session(s) are wrong. My question is this - surely there's a way to tell gconf/gnome that my dpi setting is for DISPLAY X. Please tell me it's not just a global setting for all displays!! Thanks Bob -- Bob Hepple <bhepple(a)promptu.com> ph: 07-5584-5908 Fx: 07-5575-9550

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Re: [CentOS] yum difference
by derleader mail 09 Jan '11

09 Jan '11

>On Sun, Jan 9, 2011 at 7:20 PM, derleader mail wrote: >>>> Red hat yum downloads packages from RHN >>>> Centos yum downloads packages from the fastest mirror? >>>> >>>> There is difference in configuration. >>> >>>Redhat uses yum rhnplugin to download packages from rhnet. >>> >>>It's only difference. rhnplugin is closed source system that ties into >>>rhn.redhat.com >> >> http://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/yum-r… >> >> Is this the package? > >Yes, and it has a stack of dependencies to manage RHEL authentication. >Frankly, I always disable it except on a host that is downloading a >local RHEL mirror with "reposync", and which is my local yum >repository. That makes the components available to non-root users for >review and downloading, one of the great flaws of that plugin. Do you know where I can find extensive information how the mechanism of updates works. Is there development documentation which shows how the source code works? So far I haven't seen such papers. I'm not experienced developer so I can't trace the source code to see how it works. And I'm going to change to change my web mail soon.

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Re: [CentOS] yum difference
by derleader mail 09 Jan '11

09 Jan '11

>> Red hat yum downloads packages from RHN >> Centos yum downloads packages from the fastest mirror? >> >> There is difference in configuration. > >Redhat uses yum rhnplugin to download packages from rhnet. > >It's only difference. rhnplugin is closed source system that ties into >rhn.redhat.com http://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/yum-r… Is this the package? > >-- >Eero >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos >

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Re: [CentOS] yum difference
by derleader mail 09 Jan '11

09 Jan '11

Yes it's free webmail. I don't understand what is broken in my web client? >On 01/09/11 3:36 PM, Karanbir Singh wrote: >> On 01/09/2011 11:35 PM, derleader __ wrote: >>> >On 01/09/2011 11:13 PM, derleader __ wrote: >>> >> Hi, >> your email client is still broken > >he appears to be using some kind of Bulgarian webmail ('abvmail' which >is roughly ABC Mail, www.abv.bg) :-/ > > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos >

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Re: [CentOS] yum difference
by derleader mail 09 Jan '11

09 Jan '11

>On Sun, Jan 9, 2011 at 4:02 PM, derleader mail wrote: >> Yes it's free webmail. I don't understand what is broken in my web client? > >It doesn't appear to know how to create the special In-Reply-To: >and/or References: headers that sophisticated email clients use to >track conversational threads. >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > What do you use for mail client?

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yum difference
by derleader __ 09 Jan '11

09 Jan '11

Hi, Can you tell me what ate differences in the source code between the original Red Hat yum and the one which Centos uses for updates? Regards Peter

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Discuss January 2011