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Re: [CentOS] question on CPU
by Jerry Geis 27 May '10

27 May '10

lists-centos wrote: > ------------ Original Message ------------ > >> Date: Thursday, May 27, 2010 10:38:34 AM -0400 >> From: Jerry Geis <geisj(a)pagestation.com> >> >>> On 05/27/2010 03:47 PM, Jerry Geis wrote: >>> >>>> / I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo >>>> shows Dual >>>> >>> />/ core, >>> />/ however, there is only 1 processor listed in /proc/cpuinfo. >>> />/ >>> />/ Is the OS only using a single core? >>> / >>> Check the BIOS, I have seen HP desktops that have option in BIOS >>> to turn off multicore support. Then only single core is exposed >>> to the OS. >>> >>> >>> >> Looked in the BIOS and there was no setting. >> >> Top is only showing 1 CPU. >> > > look in /var/log/dmesg, that will show what was found during the > boot process (and perhaps provide other insights). > > - Richard > > > > powernow-k8: Found 1 AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 processors (1 cpu cores) (version 2.20.00) powernow-k8: 0 : fid 0x0 gid 0x0 (2400 MHz) powernow-k8: 1 : fid 0x0 gid 0x0 (1200 MHz) powernow-k8: 2 : fid 0x0 gid 0x0 (600 MHz) Did they give me a "bad" processor. jerry

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Re: [CentOS] Having trouble with LDAP Authentication.
by Steve Glasser 27 May '10

27 May '10

Message: 11 Date: Tue, 25 May 2010 16:16:45 -0500 From: Andy Akins <andy(a)egovtn.org> Subject: [CentOS] Having trouble with LDAP Authentication... To: CentOS mailing list <centos(a)centos.org> Message-ID: <C821A86D.754B%andy(a)egovtn.org> Content-Type: text/plain; charset="iso-8859-1" I?ve google and searched, and have had very little luck... I have: 1. Installed all the packages. 2. Configured and have running OpenLDAP. 3. Migrated my passwd/shadow/group/hosts files into the directory 4. Tested the directory using ldapsearch 5. Installed LAM (web interface to LDAP authentication) 6. Added a user using LAM. 7. Confirmed user is in directory. 8. Confirmed user is not in /etc/passwd 9. Confirmed using ?getent passwd | grep username? that the user is listed. 10. Confirmed using ?getent passwd? shows two records for each user except ldap-only users (one for /etc/passwd, one for LDAP). However, ?id username? Returns unknown user <snip> Assuming you have set up both server and client, I would try the following: 1) Don't use nscd until you can confirm basic auth to the Ldap server is working. 2) Enable logging on the Ldap server. Afair, CentOS defaults to loglevel 0, which is no logs. Try something like loglevel 256. 3) Try to authenticate from a client while tailing the server logs. That should give you an idea of whether the client is even reaching the server, and if so what sort of error is occurring. Btw you didn't mention if you were doing Ldap over tls, but that adds another point of failure. See here for a step-by-step test procedure for ssl/tls: http://aput.net/~jheiss/krbldap/howto.html Cheers, -- Steve Glasser sgla9347(a)gmail.com

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Re: [CentOS] Odd failure of smbd to start from init.d - CentOS 5.4 - it's that fine SELinux
by Ross Walker 27 May '10

27 May '10

On May 25, 2010, at 8:25 PM, Whit Blauvelt <whit(a)transpect.com> wrote: > On Tue, May 25, 2010 at 07:55:12PM -0400, Whit Blauvelt wrote: >> On Tue, May 25, 2010 at 04:33:53PM -0700, Jerry Franz wrote: >> >>> Are you running with SELinux on? > > You were right Jerry! > > echo 0 > /selinux/enforce > > and then /etc/init.d/smb restart works! Thank you much Jerry! > > Now why doesn't that fine piece of government work, selinux, do > something > standard and useful like log when it's instituting breakage?? I get > that > it's doing it "for your own good," but what good is it if it doesn't > tell > you what it's doing? The _first place_ I looked when we ran into this > problem was the logs. Nada. Zilch. > > Programs that try to be smarter than the root user are annoying > enough. > Programs that do that and don't try to educate the root user while > they're > doing it are worse. There are standards for logging. Selinux is > ignoring > them. If it's going to be breaking stuff by default, and failing to > log the > breakage by default, that's not remotely good. Yet that's how CentOS > installs it. Are we downstream of some Redhat brilliance here? Selinux alerts are in /var/log/audit/audit.log The problem is if smbd doesn't create the messages.tdb file then it won't have the selinux rights. That file can be deleted and will be recreated on smbd start, it's just a cache file. -Ross

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Re: [CentOS] sandbox complaint
by m.roth＠5-cent.us 27 May '10

27 May '10

Daniel wrote: > > On 05/27/2010 11:49 AM, m.roth(a)5-cent.us wrote: >> Updating a system from CentOS 5.4 (current) to 5.5, and I see: >> >> libsepol.scope_copy_callback: zosremote: Duplicate declaration in >> module: >> type/attribute zos_remote_t >> libsemanage.semanage_link_sandbox: Link packages failed >> semodule: Failed! >> >> Any ideas as to what's going on, or why? >> >> mark "glad selinux is disabled on that box" >> > Do you have multiple pp files definitin zosremote? Well, after I googled zosremote, and found it's zos-remote, and where its config file was, in /etc/audisp I see: -rw-r----- 1 root root 210 Mar 31 02:26 audispd.conf -rw-r----- 1 root root 620 Mar 31 02:26 audisp-remote.conf drwxr-x--- 2 root root 4096 May 27 11:42 plugins.d -rw-r----- 1 root root 246 Mar 31 02:26 zos-remote.conf And I *guarantee* I have *never* done anything other than just upgrade this system, and that this system has had selinux disabled all along, so if there are, they were installed with a yum update from whatever the upstream has packaged. mark

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CentOS-announce Digest, Vol 63, Issue 4
by centos-announce-request＠centos.org 27 May '10

27 May '10

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CEBA-2010-0410 CentOS 5 i386 vsftpd Update (Karanbir Singh) 2. CEBA-2010-0410 CentOS 5 x86_64 vsftpd Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 26 May 2010 12:31:25 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2010-0410 CentOS 5 i386 vsftpd Update To: centos-announce(a)centos.org Message-ID: <20100526123125.GA28163(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2010-0410 Upstream details at : https://rhn.redhat.com/errata/RHBA-2010-0410.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: acc3dbc8de0744fc10887b5b97994f89 vsftpd-2.0.5-16.el5_5.1.i386.rpm Source: b18ba6cb5952d4cd648c2bbb0b8c8b30 vsftpd-2.0.5-16.el5_5.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 26 May 2010 12:31:25 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2010-0410 CentOS 5 x86_64 vsftpd Update To: centos-announce(a)centos.org Message-ID: <20100526123125.GA28177(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2010-0410 Upstream details at : https://rhn.redhat.com/errata/RHBA-2010-0410.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: d970499effd032897c90099750df1bac vsftpd-2.0.5-16.el5_5.1.x86_64.rpm Source: b18ba6cb5952d4cd648c2bbb0b8c8b30 vsftpd-2.0.5-16.el5_5.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 63, Issue 4 **********************************************

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sandbox complaint
by m.roth＠5-cent.us 27 May '10

27 May '10

Updating a system from CentOS 5.4 (current) to 5.5, and I see: libsepol.scope_copy_callback: zosremote: Duplicate declaration in module: type/attribute zos_remote_t libsemanage.semanage_link_sandbox: Link packages failed semodule: Failed! Any ideas as to what's going on, or why? mark "glad selinux is disabled on that box"

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Re: [CentOS] Multipathing with Sun 7310
by Alexander Dalloz 27 May '10

27 May '10

> Dear list, > > we have a relatively new Sun Storage 7310, where we connect CentOS 5.5 > Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades > boot from SAN via qla2xxx, and have no harddisks at all. We want them to > use multipathing from the very beginning, so /boot and / are already seen > by multipathd. Problem is, that the Sun 7310 has two storage heads which > run in active/passive mode. BUT the multipathd thinks, they are > active/active and therefor shows half the available paths as faulty > (multipath -ll below) > While this probably gives me the redundancy that is desired, it is a > relatively messy situation, since it will be unnecessary hard to detect > real path failures and the OS is complaining about "readsector0 checker > reports path is down" which gives me >40M/24h /var/log/messages garbage. > Any hints for a reasonable configuration? Unfortunately the Sun 7310 is > rather new, so almost nothing shows up on google... even less for > RHEL/CentOS :-( > > regards from Berlin > Jens > > [root@dev-db1 tmp]# multipath -ll > sdaa: checker msg is "readsector0 checker reports path is down" > sdab: checker msg is "readsector0 checker reports path is down" > sdac: checker msg is "readsector0 checker reports path is down" > sdad: checker msg is "readsector0 checker reports path is down" > sdd: checker msg is "readsector0 checker reports path is down" > sdh: checker msg is "readsector0 checker reports path is down" > sdl: checker msg is "readsector0 checker reports path is down" > sdp: checker msg is "readsector0 checker reports path is down" > sdq: checker msg is "readsector0 checker reports path is down" > sdr: checker msg is "readsector0 checker reports path is down" > sds: checker msg is "readsector0 checker reports path is down" > sdt: checker msg is "readsector0 checker reports path is down" > sdu: checker msg is "readsector0 checker reports path is down" > sdv: checker msg is "readsector0 checker reports path is down" > sdx: checker msg is "readsector0 checker reports path is down" > sdz: checker msg is "readsector0 checker reports path is down" > mpath0 (3600144f0fdf58b5c00004bc738070001) dm-0 SUN,Sun Storage 7310 > [size=50G][features=0][hwhandler=0][rw] > \_ round-robin 0 [prio=1][active] > \_ 0:0:1:0 sda 8:0 [active][ready] > \_ round-robin 0 [prio=1][enabled] > \_ 1:0:0:0 sde 8:64 [active][ready] > \_ round-robin 0 [prio=1][enabled] > \_ 0:0:2:0 sdi 8:128 [active][ready] > \_ round-robin 0 [prio=1][enabled] > \_ 1:0:1:0 sdm 8:192 [active][ready] > \_ round-robin 0 [prio=0][enabled] > \_ 0:0:3:0 sdq 65:0 [failed][faulty] > \_ round-robin 0 [prio=0][enabled] > \_ 1:0:2:0 sdr 65:16 [failed][faulty] > \_ round-robin 0 [prio=0][enabled] > \_ 0:0:4:0 sdx 65:112 [failed][faulty] > \_ round-robin 0 [prio=0][enabled] > \_ 1:0:3:0 sdz 65:144 [failed][faulty] Hello Jens, looks like your multipathing setup is using multibus path_grouping_policy. Did you create a custom /etc/multipath.conf? You should have. As your device is new and not known with proper defaults by the device-mapper-multipath you will have to set the path_grouping_policy explicitly. devices { device { vendor "SUN" product "Sun Storage 7310" <== REMARK path_grouping_policy failover getuid_callout "/sbin/scsi_id -g -u -s /block/%n" prio_callout "/sbin/mpath_prio_rdac /dev/%n" features "0" hardware_handler "1 rdac" path_grouping_policy group_by_prio failback immediate rr_weight uniform no_path_retry queue rr_min_io 1000 path_checker rdac } } REMARK: to detect the proper product name issue for instance: cat /sys/block/sda/device/model Restart the multipathd after editing the multipath.conf and I expect `multipath -ll" or `multipathd -k"show paths"' will show you the paths correctly weighted. Regards Alexander

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question on CPU
by Jerry Geis 27 May '10

27 May '10

I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual core, however, there is only 1 processor listed in /proc/cpuinfo. Is the OS only using a single core? jerry ------ processor : 0 vendor_id : AuthenticAMD cpu family : 17 model : 3 model name : AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 stepping : 1 cpu MHz : 2400.000 cache size : 1024 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1

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Installing from USB flash drive
by Bowie Bailey 27 May '10

27 May '10

I successfully created an install media on a USB flash drive, but now I have a minor problem installing from it. Whenever I run the installer, it insists on installing grub on /dev/sdb (the flash drive) rather than /dev/sda (the hard drive where I'm installing everything). Is there a way to convince the installer to put grub in the right place? Should I just tell it not to install grub and then do a grub-install from a rescue prompt afterwards? -- Bowie

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Having trouble with LDAP Authentication...
by Andy Akins 27 May '10

27 May '10

I¹ve google and searched, and have had very little luck... I have: 1. Installed all the packages. 2. Configured and have running OpenLDAP. 3. Migrated my passwd/shadow/group/hosts files into the directory 4. Tested the directory using ldapsearch 5. Installed LAM (web interface to LDAP authentication) 6. Added a user using LAM. 7. Confirmed user is in directory. 8. Confirmed user is not in /etc/passwd 9. Confirmed using ³getent passwd | grep username² that the user is listed. 10. Confirmed using ³getent passwd² shows two records for each user except ldap-only users (one for /etc/passwd, one for LDAP). However, ³id username² Returns unknown user And trying to log in as username at either the terminal or ssh fails, and upon examining the logs, the error message says unknown user. I configured /etc/pam.d/system-auth using authcongfig-tui, adding only the pam_mkhomedir.so line (and I tried it without that line as well). Everything seems right but its not working. Can anyone offer any suggestions as to where I should be looking? If necessary, I¹ll post my /etc/openldap/slapd.conf, /etc/openldap/ldap.conf, /etc/pam.d/system-auth, and /etc/nsswitch.conf files I just didn¹t want to send them if not necessary. Any help or suggestions would be appreciated. Thanks! -- Andy Akins Director of Development NICUSA, Tennessee A Partnership with Tennessee.gov Phone: (615) 313-0305 Email: andy(a)egovtn.org Visit www.tn.gov - the official website of the State of Tennessee ***************************************************************** CONFIDENTIALITY NOTICE: This email and any attachments are confidential. If you are not the intended recipient, you do not have permission to disclose, copy, distribute, or open any attachments. If you have received this email in error, please notify us immediately by returning it to the sender and deleting this copy from your system. Thank you. NIC, Inc., Tennessee *****************************************************************

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