Discuss September 2010

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225 participants
168 discussions

Traffic shaping on CentOS
by Emmanuel Noobadmin 11 Sep '10

11 Sep '10

I've been trying to do traffic shaping on one of my public servers and after reading up, it seems like the way to do so is via tc/htb. However, most of the documentation seems at least half a decade old with nothing new recently. Furthermore, trying to get documentation on tc filters turned up a blank. man tc refers to a tc-filters (8) but trying to man that gives a no such page/section error. Googling on this seems to imply that the documentation was never created. The author also seems to have stop updating his blog/company site since 2007 based on the last login date on netherlabs.nl So I'm wondering is tc the current and recommended method for traffic shaping on CentOS or is there some newer method that has superceded it?

8 14

set lockedmem to higher value?
by mcclnx mcc 09 Sep '10

09 Sep '10

We have some ORACLE PGA problem and ORACLE document say we can serup lockmem(Max lock memory) to higher value. $ulimit -a time(cpu-seconds) unlimited file(blocks) unlimited coredump(blocks) 0 data(kbytes) unlimited stack(kbytes) 10240 lockedmem(kbytes) 3145728 memory(kbytes) unlimited nofiles(descriptors) 65536 processes 2047 Can anyone tell me how to set lockedmem to higher value on CENTOS 5.4? Thanks.

3 2

help about rsync remote port and mail
by adrian kok 09 Sep '10

09 Sep '10

Hi all How can I define the rsync remote port? and any existing script to send out mail after completing rsync Thank you

2 1

logrotate - size and daily options
by Carlos S 09 Sep '10

09 Sep '10

Hi, A question about logrotate: Are size and daily/weekly/monthly options mutually exclusive or ORred? If mutually exclusive, then which one takes preference first specified or last specified? -- CS.

1 0

Interpreting logwatch
by Timothy Murphy 09 Sep '10

09 Sep '10

Every few days I see in the logwatch on my Centos-5.5 web-server what seems like a rather feeble break-in attempt. Eg today I see --------------------------- 403 Forbidden /phpMyAdmin/scripts/setup.php: 2 Time(s) /phpmyadmin/scripts/setup.php: 2 Time(s) 404 Not Found /PMA2005/scripts/setup.php: 1 Time(s) /TRAD_files/datestamp.js: 1 Time(s) ... --------------------------- followed by dozens of similar lines. As far as I can see, the IP of the person making the attempt (if there was an attempt) is not given. I'm not at all sure what if anything I should do about this. In fact, I'm not clear how one should deal with logwatch entries in general. Is there any document giving advice on this? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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CentOS-announce Digest, Vol 67, Issue 2
by centos-announce-request＠centos.org 09 Sep '10

09 Sep '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. CESA-2010:0680 Critical CentOS 3 i386 seamonkey - security update (Tru Huynh) 2. CESA-2010:0680 Critical CentOS 3 x86_64 seamonkey - security update (Tru Huynh) 3. CESA-2010:0676 Important CentOS 4 i386 kernel - security update (Tru Huynh) 4. CESA-2010:0676 Important CentOS 4 x86_64 kernel - security update (Tru Huynh) 5. CESA-2010:0678 Moderate CentOS 4 i386 rpm - security update (Tru Huynh) 6. CESA-2010:0678 Moderate CentOS 4 x86_64 rpm - security update (Tru Huynh) 7. CESA-2010:0681 Critical CentOS 4 i386 firefox - security update (Tru Huynh) 8. CESA-2010:0681 Critical CentOS 4 x86_64 firefox - security update (Tru Huynh) 9. CESA-2010:0680 Critical CentOS 4 i386 seamonkey - security update (Tru Huynh) 10. CESA-2010:0680 Critical CentOS 4 x86_64 seamonkey - security update (Tru Huynh) 11. CESA-2010:0682 Moderate CentOS 4 i386 thunderbird - security update (Tru Huynh) 12. CESA-2010:0682 Moderate CentOS 4 x86_64 thunderbird - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 8 Sep 2010 23:19:58 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2010:0680 Critical CentOS 3 i386 seamonkey - security update To: centos-announce(a)centos.org Message-ID: <20100908211958.GA15076(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2010:0680 seamonkey security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2010-0680.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/seamonkey-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-chat-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-devel-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-dom-inspector-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-js-debugger-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-mail-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nspr-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nspr-devel-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nss-1.0.9-0.60.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nss-devel-1.0.9-0.60.el3.centos3.i386.rpm source: updates/SRPMS/seamonkey-1.0.9-0.60.el3.centos3.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update seamonkey\* Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

1 0

Anyone else having problems with updates this morning?
by casey roberts 09 Sep '10

09 Sep '10

Good morning all, I ran an 'yum update' and have been receiving the following errors: Loaded plugins: fastestmirror Determining fastest mirrors Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=x86_64&repo=addons error was [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')> Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=x86_64&repo=os error was [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')> Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=x86_64&repo=extras error was [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')> Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=x86_64&repo=updates error was [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')> And so on for the other mirrors. Is it just me? Thank you.

2 2

Shutdown CentOS VM when closing VMWare Workstation
by Alexander Farber 09 Sep '10

09 Sep '10

Hello, I'm using CentOS 5.5 / 16bit as a virtual machine in VMWare Workstation and have installed the "VMWare Tools" by running vmware-install.pl and vmware-config-tools.pl but can't figure out how to make the VM shutdown, when I shutdown the Windows PC hosting it. Does anybody please have any hints or scripts? Do I need to use any VMWare modules if I just want to shutdown the VM? Surprisingly I haven't found any good starters on the web yet Thank you Alex PS: Here is what I have in /usr/local # ls /usr/local/bin/ vm-support vmware-toolbox vmware-user vmware-config-tools.pl vmware-toolbox-cmd vmware-user-wrapper vmware-hgfsclient vmware-uninstall-tools.pl vmware-xferlogs # ls /usr/local/sbin/ vmtoolsd vmware-checkvm vmware-rpctool vmware-tools-upgrader # ls /usr/local/lib/vmware-tools/modules/binary/bld-2.6.18-8.el5-i686PAE-RHEL5/objects/ pvscsi.o vmblock.o vmci.o vmhgfs.o vmmemctl.o vmsync.o vmxnet3.o vmxnet.o vsock.o ( <--- not sure if that's the relevant dir) # rpm -qa | grep kernel kernel-2.6.18-194.3.1.el5 kernel-2.6.18-194.11.3.el5 kernel-headers-2.6.18-194.11.3.el5 kernel-2.6.18-194.11.1.el5 # /sbin/chkconfig --list | grep -i vmware vmware-tools 0:off 1:off 2:on 3:on 4:off 5:on 6:off # sudo lsmod | grep vm vmblock 20512 3 vmmemctl 16956 0 vmci 38308 1 vsock vmxnet3 37764 0 vmxnet 24836 0

2 1

LARTC and CentOS question
by Coert Waagmeester 09 Sep '10

09 Sep '10

Hello all, Got myself the Linux Advanced Routing & Traffic control book http://lartc.org/howto/ All the commands in the guide do not survive reboots. Could someone point me in the right direction, where I can find CentOS/Redhat specific documentation on the whole /etc/sysconfig/network* setup? Kind regards, Coert Waagmeester

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Re: [CentOS] Interpreting logwatch
by John Doe 09 Sep '10

09 Sep '10

From: Timothy Murphy <gayleard(a)eircom.net> > Every few days I see in the logwatch on my Centos-5.5 web-server > what seems like a rather feeble break-in attempt. > Eg today I see I get proxy scans and phpmyadmin (and others) vulnerabilities scans everyday... They just get 404s in return... You can check the IPs in apache error_log In the beginning I was reporting them to their ISPs but, with the high numbers of daily scans, I just gave up... Either they are part of a botnet (so clueless users infected pcs), or they are abroad (Asia) and the ISP will just mostly ignore your email... Maybe just make sure your set apache ServerSignature to Off... One annoying "bug" about logwatch is that it does not cope with the lack of year in yum.log dates, so it will happily report packages installs from last years as if it just happened... JD

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Discuss September 2010