Discuss May 2011

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153 discussions

yum check-updates script not working correctly
by brian 27 May '11

27 May '11

Hi all... A few weeks ago, I installed (and configured) the three recommended scripts to run yum update check via cron.daily on my CentOS 5.6 server (a Dell 2650). Although it is clearly configured to "check only", it appears to be updating, instead. Has something (environmentally?) changed between the version of CentOS under which those scripts were originally authored and version 5.6, or do I have something (and please, tell me what!) mis-configured somewhere?? Every couple of days (when there are updates, obviously) I'll see something like this in my Logwatch report: --------------------- yum Begin ------------------------ Packages Updated: nss_ldap-253-37.el5_6.1.i386 poppler-0.5.4-4.4.el5_6.17.i386 ksh-20100202-1.el5_6.5.i386 poppler-utils-0.5.4-4.4.el5_6.17.i386 ---------------------- yum End ------------------------- The scripts are set up as follows: in /etc/cron.daily/yum.cron: --------------------- yum.cron -------------------------- #!/bin/sh # Pull in sysconfig settings . /etc/sysconfig/yum-check if [ -f /var/lock/subsys/yum ]; then if [ ${CHECKONLY} = "yes" ];then /usr/bin/yum-check fi else /usr/bin/yum -R 10 -e 0 -d 0 -y update yum /usr/bin/yum -R 120 -e 0 -d 0 -y update fi ---------------------------------------------------------- in /etc/sysconfig/yum-check: ---------------------- yum-check ------------------------- # yes sets yum to check for updates and mail only if patches are available # no does enable autoupdate if /var/lock/subsys/yum is available CHECKONLY="yes" # defaults to root, leave empty if .forward/alias in place for root MAILTO="" # Set to yes for debugging only! You'll get a mail for each run! CHECKWRK="no" # Seconds to randomize startup, if running from cron to balance load RANGE="3600" ---------------------------------------------------------- and, in /usr/bin/yum-check: ---------------------- yum-check ------------------------- #!/bin/sh # # Name: yum-check # Author: Michael Heiming - 2005-03-11 # Function: Run from cron to check for yum updates # and mail results # Version: 0.7 (initial) # 2005-03-12 0.8 randomize startup (cron only) # Config: /etc/sysconfig/yum # Pull in sysconfig settings . /etc/sysconfig/yum-check maila=${MAILTO:=root} yumdat="/tmp/yum-check-update.$$" yumb="/usr/bin/yum" # wait a random interval if there is not a controlling terminal, # for load management if ! [ -t ] then num=$RANDOM let "num %= ${RANGE:=1}" sleep $num fi rm -f ${yumdat%%[0-9]*}* $yumb check-update >& $yumdat yumstatus="$?" case $yumstatus in 100) cat $yumdat |\ mail -s "Alert ${HOSTNAME} updates available!" $maila exit 0 ;; 0) # Only send mail if debug is turned on if [ ${CHECKWRK} = "yes" ];then cat $yumdat |\ mail -s "Yum check succeeded ${HOSTNAME} zero patches available." $maila fi exit 0 ;; *) # Unexpected yum return status (echo "Undefined, yum return status: ${yumstatus}" && \ [ -e "${yumdat}" ] && cat "${yumdat}" )|\ mail -s "Alert ${HOSTNAME} problems running yum." $maila esac [ -e "${yumdat}" ] && rm ${yumdat} ----------------------------------------------------------

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Re: [CentOS] Good network printer/scanner for Centos/Linux
by cornel panceac 26 May '11

26 May '11

2011/5/26 Kenneth Porter <shiva(a)sewingwitch.com> > On Thursday, May 26, 2011 7:43 PM +0300 Eero Volotinen > <eero.volotinen(a)iki.fi> wrote: > > > - Linux, Windows and OSX support on printer and also on scanner. > > The scanner part is tough. I'd love to see some good support for Epson. > I've got a Perfection 4180 connected by USB and an 11x17 network scanner, > but currently I do all my scanning through Windows. > > > the canon scan lide i've used so far worked perfectly in linux. of course, they're not the best scanners out there but they are ok for my ocasional scanning jobs.

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CentOS-announce Digest, Vol 75, Issue 9
by centos-announce-request＠centos.org 26 May '11

26 May '11

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-2011:0825 CentOS 5 x86_64 numactl Update (Karanbir Singh) 2. CEBA-2011:0825 CentOS 5 i386 numactl Update (Karanbir Singh) 3. CEBA-2011:0823 CentOS 5 i386 shadow-utils Update (Karanbir Singh) 4. CEBA-2011:0823 CentOS 5 x86_64 shadow-utils Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 25 May 2011 21:44:07 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2011:0825 CentOS 5 x86_64 numactl Update To: centos-announce(a)centos.org Message-ID: <20110525214407.GA19608(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2011:0825 Upstream details at : https://rhn.redhat.com/errata/RHBA-2011-0825.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: e639e64f2584c7d9d450a4cc19cb56dd numactl-0.9.8-12.el5_6.i386.rpm 19049844fdffec608ee3a5dc69c3a47f numactl-0.9.8-12.el5_6.x86_64.rpm 0a25ca25abf3ddf9489ea43ad50c0cea numactl-devel-0.9.8-12.el5_6.i386.rpm a5cd3e8842e3904d7ef3c781f4da8e7c numactl-devel-0.9.8-12.el5_6.x86_64.rpm Source: 04ba7c6d28010f7766f804efab0b1e88 numactl-0.9.8-12.el5_6.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 25 May 2011 21:44:07 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2011:0825 CentOS 5 i386 numactl Update To: centos-announce(a)centos.org Message-ID: <20110525214407.GA19591(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2011:0825 Upstream details at : https://rhn.redhat.com/errata/RHBA-2011-0825.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 6e9805b07c044e8370765a8a8d44055e numactl-0.9.8-12.el5_6.i386.rpm a58f1a250b5fc931077931a7e45b6331 numactl-devel-0.9.8-12.el5_6.i386.rpm Source: 04ba7c6d28010f7766f804efab0b1e88 numactl-0.9.8-12.el5_6.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Wed, 25 May 2011 21:48:42 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2011:0823 CentOS 5 i386 shadow-utils Update To: centos-announce(a)centos.org Message-ID: <20110525214842.GA19697(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2011:0823 Upstream details at : https://rhn.redhat.com/errata/RHBA-2011-0823.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: d54ee9def3fe49af20b602c3e6530bb3 shadow-utils-4.0.17-18.el5_6.1.i386.rpm Source: 81cb38b0d9c2ae8bb68c83cfbc405304 shadow-utils-4.0.17-18.el5_6.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Wed, 25 May 2011 21:48:42 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2011:0823 CentOS 5 x86_64 shadow-utils Update To: centos-announce(a)centos.org Message-ID: <20110525214842.GA19711(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2011:0823 Upstream details at : https://rhn.redhat.com/errata/RHBA-2011-0823.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 83014a59441dfb6793261d98c939982e shadow-utils-4.0.17-18.el5_6.1.x86_64.rpm Source: 81cb38b0d9c2ae8bb68c83cfbc405304 shadow-utils-4.0.17-18.el5_6.1.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 75, Issue 9 **********************************************

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Desktopsearch "Recoll" for CentOS 5.5 64bit
by Timothy Kesten 26 May '11

26 May '11

Hi Folks, is there a rpm-package for desktopsearch "recoll" for CentOS 5.5 64bit If yes - where is it? I've tried fedora-packages from http://www.lesbonscomptes.com/recoll/download.html#rpms but got much dependencies-errors Thx Timothy

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CentOS 5.6 PHP 5.3 and SquirrelMail
by John Hinton 25 May '11

25 May '11

OK, so I did an upgrade to PHP 5.3 on one of my servers. I noticed the uninstall of php also removed SquirrelMail and it won't install under PHP 5.3. Has anybody worked this out with a good RPM or repo solution? -- John Hinton 877-777-1407 ext 502 http://www.ew3d.com Comprehensive Online Solutions

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Re: [CentOS] OT: RHEL 6.1 is out
by Drew 25 May '11

25 May '11

> If you deferred releasing a 6.0 and instead immediately started working on > 6.1, how much additional time would that add to getting 6.1 out? I'm not so > much asking for an actual estimate, as I am whether it would be easier just > to go directly to 6.1 if it fixes any issues that make building the release > easier. An .1 release is basically a .0 release + patches so I don't see any real difference. The hard part is reverse engineering the .0 release build environment and the .1 follows pretty quick from there. Occasionally a .x release breaks the environment and you get situations like 5.6 was. Just my $0.02 form trolling the lists the last few years. :-) -- Drew Waiting patiently for 6.x so he can try out KVM stuff without having to do a from scratch reinstall.

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How to resolve Centos Linux Version 5.5 x86_32 Callgrind Version 3.6.1 cg_annotate : Line 1 Missing command line error?
by Frank Chang 25 May '11

25 May '11

Good afternoon, We are running callgrind and cg_annotate version 3.6.1 on Centos Linux Version 5.5 x86_32. One month ago Mr. Josef Weidenorfer issued a special patch that fixed callgrind on Centos Linux Version 5.5 x86_32. We can now profile complex C++ programs which use our own shared library libmdMatchup.so. However, when we use version 3.6.1 cg_annotate callgrind.out.22533 --auto = yes -I/home/frankc/DQTTest6/MatchUpLib/Source, we obtain the error. Line 1 Missing command line. callgrind.out.22533 was created using the command line: /home/frankc/DQTTest2/valgrind-3.6.1/coregrind/valgrind --tool=callgrind --dump-instr=yes --simulate-cache=yes --collect-jumps=yes ./MatchUpAccurate.exe. MatchUpAccurate.exe uses a special shared library libmdMatchup.so Could some engineer or programmer please tell us what we are doing wrong in using callgrind and cg_annotate? Please let us know if other programmers/developers have been able to use cg_annotate version 3.6.1 on Centos Linux Version 5.5 x86_32. I am including the top 50 lines of Callgrind.out.22533 below in case you have time to look at our problem. Thank you. version: 1 creator: callgrind-3.6.1 pid: 22533 cmd: ./MatchUpAccurate.exe part: 1 desc: I1 cache: 16384 B, 32 B, 8-way associative desc: D1 cache: 8192 B, 64 B, 4-way associative desc: LL cache: 524288 B, 64 B, 8-way associative desc: Timerange: Basic block 0 - 10444424808 desc: Trigger: Program termination positions: instr line events: Ir Dr Dw I1mr D1mr D1mw ILmr DLmr DLmw summary: 51414468282 24200786461 13006654839 651776228 364795898 154843814 202585 5324012 59432151 ob=(10) /home/frankc/DQTTest6/MatchUpTest/lirh5g_deb/MatchUpAccurate.exe fl=(20) /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/iostream fn=(8384) __tcf_0 0x804e2d8 76 1 0 1 1 0 0 1 +1 * 1 +2 * 1 0 1 +1 * 1 +3 * 1 0 1 1 cfi=(14) ??? cfn=(1026) 0x0804f422 calls=1 0x804f422 -76 * * 2 2 +5 * 1 +6 * 1 +6 * 1 0 1 +3 * 1 0 1 cob=(7) /usr/lib/libstdc++.so.6.0.8 cfi=(7) ??? cfn=(8390) std::ios_base::Init::~Init() calls=1 0x3e30b70 -76 * * 26 12 8 5 3 0 4 3 cob=(1) /lib/ld-2.5.so cfi=(1) ??? cfn=(176) _dl_runtime_resolve calls=1 0xae7440 -76 * * 1428 508 202 3 40 5 0 16 3 * * 5 3 2 1 2 +5 * 1 +3 * 1 1 +1 * 1 1 +1 * 1 1 fl=(27) /usr/include/sys/stat.h fn=(1290) fstat 0x80517e8 448 18 0 18 18 0 0 3 +1 * 18 +2 * 18 0 18

1 0

OT: wifi, phone, power in India and Malaysia
by ken 25 May '11

25 May '11

A not so technical friend in India is shopping for a laptop. He often travels and stays months in Malaysia and so needs to be able to use the laptop there as well. He typically connects to the internet via wifi, but sometimes must use a telephone line (yes, with a modem). And of course there will be times when he has to plug into mains power to recharge the battery. So to be able to fully use his future laptop in both India and Malaysia, I need to know: Are the wifi standards the same in both India and Malaysia? And will the same wifi card work in both countries? Similarly, will the modem work in both countries? And, too, is the mains power the same in India and Malaysia? If there is an incompatibility in any of these, what is the simplest resolution? I should probably get him an extended warranty also. Is there such a warranty which would allow him to have the laptop fixed in either country, depending upon where he happens to be? Am I overlooking any considerations? Thanks in advance for your sage experience.

9 20

scsi3 persistent reservations in cluster storage fencing
by John R Pierce 24 May '11

24 May '11

I'm interested in the idea of sharing a bunch of SAS JBOD devices between two CentOS servers in an active-standby HA cluster sort of arrangement, and found something about using scsi3 persistent reservations as a fencing method. I'm not finding a lot of specifics about how this works, or how you configure two initiator systems on a SAS chain. I don't have any suitable hardware for running any tests or evaluations yet. general idea: 2 centos servers each with 8 port external SAS cards (2 x4), cascaded through a SAS box-o-disks with a whole bunch of SAS dual ported drives, to implement high availability large nearline storage. all storage configured as JBOD, using linux md raid or lvm mirroring. drives should only be accessible by the currently active server, with heartbeat managing the fencing. here's a hardware block diagram http://freescruz.com/shared-sas.jpg This is about the only details I've found on scsi persistant reservations and linux HA http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Configura… One question I have is: how well will this scale with several strings of 100 SAS drives on the same HA pair of servers? Can SAS storage instead be fenced at the SES/expander level rather than having to use reservations with each separate drive? -- john r pierce N 37, W 123 santa cruz ca mid-left coast

3 2

FTP Migration
by listmail 24 May '11

24 May '11

Hi All, Please feel free to correct any misconceptions in my premises as I get to my question. I have about 6 ftp services running on a CentOS system that is going down for service, and I want to move the ftp services to a VM on another network. These are all running on Proftpd, with fairly complicated directory/permissions/rate control layouts, as proftpd nicely supports. First, it appears that RH and CentOS have dropped proftpd since I last looked and are now only shipping vsftpd in the repositories. Second, I looked at the vsftpd site, and noticed a complete absence of documentation (other than a basic bare-bones manpage), so I have no idea if vsftpd will support anything that I'm doing with proftpd, or any information about how to configure anything. Obviously I could just install the latest version of proftpd from source on the new host and get on with my life, but is there any reason to bite the bullet and try to convert my ftp sites to a new, basically undocumented ftp server? Any input appreciated, especially on conversions of complicated ftp sites from proftpd to vsftpd. Thanks, --Bill

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Discuss May 2011