Discuss May 2012

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CentOS-announce Digest, Vol 87, Issue 3
by centos-announce-request＠centos.org 05 May '12

05 May '12

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-2012:0541 CentOS 6 openswan Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 4 May 2012 21:25:17 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0541 CentOS 6 openswan Update To: centos-announce(a)centos.org Message-ID: <20120504212517.GA20366(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0541 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0541.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 5b35ae359cacb232aedb3a36f83b2557990cd5f2b1112583e040640c990af470 openswan-2.6.32-12.el6_2.i686.rpm 122f140eb2878480a86020c67bd0cb728cf3917ff8a43e3505084468b4ccfbea openswan-doc-2.6.32-12.el6_2.i686.rpm x86_64: 5b01374d1ba7dfd047964706093c454e44d5a5a962ef8080b1533917c1b68b0b openswan-2.6.32-12.el6_2.x86_64.rpm b26dc2edd841c3a3fb42092b225ecb20584fde54617329efcb114824b76c5e01 openswan-doc-2.6.32-12.el6_2.x86_64.rpm Source: d8f8cf1923063e41b3889e19626dbd181588323a19cbdf1c18df79b892126a5f openswan-2.6.32-12.el6_2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #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 87, Issue 3 **********************************************

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2 systems, can't connect to apache on one
by Larry Martell 05 May '12

05 May '12

I have 2 systems, both with the same version of CentOS installed. Both have identical versions of apache running and identical httpd.conf files. From a third system, if I point my browser at system 1, I can connect to it with no problem. But if I point my browser at system 2, I cannot connect. There is nothing logged anywhere that I can find on system 2 - not in the apache error log or access log, or the audit log, or anywhere. I tried disabling selinux, but that did not help. I can ping and ssh into system 2, so I know I have a route to it. It's like the request never reaches the server. Anyone have any ideas as to what could be causing this or what I could check to help me diagnose the problem? TIA! -larry

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Can only login as root
by Timothy Murphy 04 May '12

04 May '12

I have a strange problem on a CentOS-5.8 machine. I can only login as root. If I try to login with one of the user's names, it hangs for a long time. I thought it hung forever, but I just found that I do login after "su tim" after 5 minutes. It seems that the problem lies in repeated messages in /var/log/messages --------------------------- May 3 12:14:13 helen su: nss_ldap: failed to bind to LDAP server ldap://www.gayleard.com/: Can't contact LDAP server May 3 12:14:13 helen su: nss_ldap: reconnecting to LDAP server (sleeping 64 seconds)... --------------------------- The openldap server is not running, and I don't see why this authentication is being sought. There is nothing in /etc/pam.d/su or /etc/pam.d/login or /etc/ssh/sshd_config to suggest that ldap needs to be invoked, unless it is a part of system-auth . -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College Dublin

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Re: [CentOS] editing bind (DNS) configuration under CentOS 6
by James B. Byrne 04 May '12

04 May '12

On Wed, May 2, 2012 16:17, Karanbir Singh wrote: those of us not blessed with either the depth of experience or >> the > > sure, if you are new to Linux on the whole and need a point and click > basics interface to a bunch of things webmin might be a suiteable > option Sure, if you work for some multi-billion dollar enterprise then the cost of one or more employees perpetually mastering the ever-changing minutiae of dozens of *nix services, most with documentation that is charitably described as scant, can be borne. The rest of the world needs a reasonable answer at a reasonable price in a reasonable time. Something that Webmin and similar products provide. My personal experience with point and click interfaces to *nix utilities (which goes back to 1995) is that they often prove far better at getting something working than losing yourself in the byzantine cli and configuration file options that are the alternative. > the most important vuln in webmin is how its designed, perl > interfaces running as root with exclusive rights to anything > on the machine, easily fiddled with on the machine itself. > Perhaps 90% of all hacked centos machines running webmin, that > I've looked at, were exploited locally Myself, I never permit local shell accounts on systems that run publicly available services. Once one requires local shell access to a system be granted to ordinary users then I treat that host as compromised, install and run nothing on it beyond what is required to support shell access, and firewall it as if it resides on an alien network. Webmin is not the problem in this case. Want of prudence is. I admit that my personal practice in this regard possibly colours my view of how the 'security' boogieman is often used to denigrate a product that I find extremely useful. > Also, your email client looks to be broken, its not setting headers > needed for mailing lists threading. My email client is Squirrel Mail. I do not consider it to be broken software. I receive the mailing list in digest format. Perhaps the headers you seek are not provided in that format by the mailing list manager itself. However, maintaining the subject header usually proves sufficient elsewhere. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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CentOS-announce Digest, Vol 87, Issue 2
by centos-announce-request＠centos.org 04 May '12

04 May '12

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-2012:0500 CentOS 6 libvirt Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 4 May 2012 12:22:07 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0500 CentOS 6 libvirt Update To: centos-announce(a)centos.org Message-ID: <20120504122207.GA26512(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0500 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0500.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 7637c263fe59f1c967ea528284fb9a8a1f64d09287c03b6954df88f5969d6119 libvirt-0.9.4-23.el6_2.8.i686.rpm 8663a1247952b73620b27698d8ab982f4f1b5f712444d916709a6b71f1bd57b9 libvirt-client-0.9.4-23.el6_2.8.i686.rpm 8b265fb7984f17f117cf5ebc80a81e28062a71c11ff94eafdd11d6a58dc2cfd9 libvirt-devel-0.9.4-23.el6_2.8.i686.rpm 7c66de0848199c87e7fb27e6e474ab2adff949544a0755fa29f8e6190e07033c libvirt-lock-sanlock-0.9.4-23.el6_2.8.i686.rpm 0b8d63e49edaf4d0da57a928728acfda0657e17f435123865f90cb15bc7c90eb libvirt-python-0.9.4-23.el6_2.8.i686.rpm x86_64: e4f7bfdda1bb82808479b7a9ca973173f4c949873930b76f8e20df62070ad8ca libvirt-0.9.4-23.el6_2.8.x86_64.rpm 8663a1247952b73620b27698d8ab982f4f1b5f712444d916709a6b71f1bd57b9 libvirt-client-0.9.4-23.el6_2.8.i686.rpm 9bbdc5445dfabb9eebac6836bffe0cc6a81c108aa32c7f09a7b5116c5a63f5e2 libvirt-client-0.9.4-23.el6_2.8.x86_64.rpm 8b265fb7984f17f117cf5ebc80a81e28062a71c11ff94eafdd11d6a58dc2cfd9 libvirt-devel-0.9.4-23.el6_2.8.i686.rpm 259b3355c4c9ffc075e2d5d6edb7da2adb46e74e2ba903ea06d7cfffeaf98cc6 libvirt-devel-0.9.4-23.el6_2.8.x86_64.rpm 5926f7940f438622763253ec9372f91d9efe8bfc92b846125d93b53fdf08e9b1 libvirt-lock-sanlock-0.9.4-23.el6_2.8.x86_64.rpm c005e3073fc78cf631e82e089d2fcbfe628e0b6e7a86bf403d38145af5ad55fe libvirt-python-0.9.4-23.el6_2.8.x86_64.rpm Source: 1147826833d3b0b62ab2384406a9e97c77feb8faf44788c9942de791cdb855bf libvirt-0.9.4-23.el6_2.8.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #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 87, Issue 2 **********************************************

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Problem with ethernet card: r8169.
by Rafał Radecki 04 May '12

04 May '12

Hi all. I have two servers 2.6.18-308.4.1.el5PAE CentOS release 5.7 (Final) Both have two external gigabit network cards (installed Planet with Realtek r8169 chipset). lspci 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10) 04:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10) /var/log/messages May 3 15:00:22 ms7a kernel: r8169: eth1: link up May 3 16:05:27 ms7a kernel: irq 177: nobody cared (try booting with the "irqpoll" option) May 3 16:05:27 ms7a kernel: [<c044ea52>] __report_bad_irq+0x2b/0x69 May 3 16:05:27 ms7a kernel: [<c044ec49>] note_interrupt+0x1b9/0x1f0 May 3 16:05:27 ms7a kernel: [<c044e339>] __do_IRQ+0xdd/0x118 May 3 16:05:27 ms7a kernel: [<c044e25c>] __do_IRQ+0x0/0x118 May 3 16:05:27 ms7a kernel: [<c04074c4>] do_IRQ+0x9b/0xc3 May 3 16:05:27 ms7a kernel: [<c040597a>] common_interrupt+0x1a/0x20 May 3 16:05:27 ms7a kernel: [<c05339f3>] acpi_processor_idle_simple+0x174/0x297 May 3 16:05:27 ms7a kernel: [<c0522a21>] acpi_set_register+0x14c/0x155 May 3 16:05:27 ms7a kernel: [<c0403d14>] cpu_idle+0x9f/0xb9 May 3 16:05:27 ms7a kernel: ======================= May 3 16:05:27 ms7a kernel: handlers: May 3 16:05:27 ms7a kernel: [<f89710d9>] (rtl8169_interrupt+0x0/0x232 [r8169]) May 3 16:05:27 ms7a kernel: Disabling IRQ #177 May 4 12:46:03 ms7b kernel: irq 177: nobody cared (try booting with the "irqpoll" option) May 4 12:46:03 ms7b kernel: [<c044ee5a>] __report_bad_irq+0x2b/0x69 May 4 12:46:03 ms7b kernel: [<c044f051>] note_interrupt+0x1b9/0x1f0 May 4 12:46:03 ms7b kernel: [<c044e741>] __do_IRQ+0xdd/0x118 May 4 12:46:03 ms7b kernel: [<c044e664>] __do_IRQ+0x0/0x118 May 4 12:46:03 ms7b kernel: [<c04074c4>] do_IRQ+0x9b/0xc3 May 4 12:46:03 ms7b kernel: [<c040597a>] common_interrupt+0x1a/0x20 May 4 12:46:03 ms7b kernel: [<c05f3518>] tcp_rcv_established+0x77c/0x784 May 4 12:46:03 ms7b kernel: [<c05c117e>] skb_checksum+0x52/0x282 May 4 12:46:03 ms7b kernel: [<c05f8522>] tcp_v4_do_rcv+0x25/0x2b6 May 4 12:46:03 ms7b kernel: [<c05faa9a>] tcp_v4_rcv+0x8e9/0x93b May 4 12:46:03 ms7b kernel: [<c05e21e1>] ip_local_deliver+0x15b/0x206 May 4 12:46:03 ms7b kernel: [<c05e204c>] ip_rcv+0x47f/0x4b9 May 4 12:46:03 ms7b kernel: [<c05c6aea>] netif_receive_skb+0x3dd/0x401 May 4 12:46:03 ms7b kernel: [<f89828c2>] rtl8169_rx_interrupt+0x4be/0x4cd [r8169] May 4 12:46:03 ms7b kernel: [<f898516d>] rtl8169_poll_compat+0x48/0x19f [r8169] May 4 12:46:03 ms7b kernel: [<c05c8923>] net_rx_action+0x9c/0x19c May 4 12:46:03 ms7b kernel: [<c042ad55>] __do_softirq+0x87/0x114 May 4 12:46:03 ms7b kernel: [<c04073e5>] do_softirq+0x4e/0x92 May 4 12:46:03 ms7b kernel: [<c044e664>] __do_IRQ+0x0/0x118 May 4 12:46:03 ms7b kernel: [<c04074e0>] do_IRQ+0xb7/0xc3 May 4 12:46:03 ms7b kernel: [<c040597a>] common_interrupt+0x1a/0x20 May 4 12:46:03 ms7b kernel: [<c0534c17>] acpi_processor_idle_simple+0x0/0x2e5 May 4 12:46:03 ms7b kernel: [<c053452b>] acpi_safe_halt+0x14/0x20 May 4 12:46:03 ms7b kernel: [<c0534ced>] acpi_processor_idle_simple+0xd6/0x2e5 May 4 12:46:03 ms7b kernel: [<c0523db9>] <6>NETDEV WATCHDOG: eth1: transmit timed out May 4 12:46:03 ms7b kernel: acpi_set_register+0x14c/0x155 May 4 12:46:03 ms7b kernel: [<c0403d14>] cpu_idle+0x9f/0xb9 May 4 12:46:03 ms7b kernel: ======================= May 4 12:46:03 ms7b kernel: handlers: May 4 12:46:03 ms7b kernel: [<f89830d9>] (rtl8169_interrupt+0x0/0x232 [r8169]) May 4 12:46:03 ms7b kernel: Disabling IRQ #177 May 4 12:46:03 ms7b kernel: r8169: eth1: link up I have random network connectivity problems only reboot helps for some time, then the problem returns. I've added irqpoll option to kernel line in grub.conf but it hasn't helped. I've checked options in bios but haven't found anything interesting. Any clues what to do next? Best regards, Rafal Radecki.

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Limiting network traffic from different IPs.
by Rafał Radecki 04 May '12

04 May '12

Hi all. I have a router with 5 network interfaces and sometimes there is so much traffic on one of them that the server load is very high. What are the options to limit the traffic per IP address on every interface? Which need least system (CPU, memory) resources? Thanks. Best regards, Rafal.

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Upgrading PHP and PHP53 on CentOS5 - Progress/Problem w/ Squirrelmail
by Max Pyziur 03 May '12

03 May '12

Greetings In the attempt to upgrade the technology stack on CentOS 5 from stock PHP to PHP53 I have made some progress. Much thanks to all respondents, especially Jesus. One repository that provides a complete set of builds and seems to fulfill both PHP and PHP53 requirements is the IUS one: http://iuscommunity.org/ Repos here: http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/i386/repoview/ One reference to several discussions covering this topic are available here: https://www.centos.org/modules/newbb/viewtopic.php?topic_id=30881 Using the IUS PHP53 rpms allows for the rpm re-installation of drupal6, phpmyadmin, and squirrelmail. However, with Squirrelmail there is one critical issue. Via one of its plugins, Squirellmail provides an html email editor. With the upgrade to PHP53, the editor continues to work. However, the html email that is composed using this functionality is received empty. Reverting back to the original CentOS PHP packages re-enables this functionality. Is there a solution to this issue? Much thanks. One (secondary) thing. In order to support yum updates from the IUS repository, how do I load the appropriate file? Much thanks. Max Pyziur pyz(a)brama.com

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Re: [CentOS] File size diff on local disk vs NFS share
by aurfalien 03 May '12

03 May '12

On May 3, 2012, at 3:04 PM, Glenn Cooper wrote: >>>> I never really paid attention to this but a file on an NFS mount is >>>> showing 64M in size, but when copying the file to a local drive, it >>>> shows 2.5MB in size. >>>> >>>> My NFS server is hardware Raided with a volume stripe size of 128K >>>> were the volume size is 20TB, my local disk is about 500GB. >>>> >>>> Is this due to my stripe size? >>>> >>>> Nuggets are appreciated. > >> By the way, this is only across NFS as when ssh'd into the server, the file size shows 2.5M, same as the clients when its local so its seems NFS is the culprit. >> >> I have r/wsize tweaked but thats it. > > Wild guess - cached file attributes not getting updated properly in the NFS client? Has the actual file size changed recently, like in the last few hours or days? > > Cheers, > Glenn Hi, More info. So the file in question is showing to be 2.5MB today, were as yesterday it was ~66MB. A new file generated today is also 2.4MB but via NFS its 66MB, even when logged in to the server locally its 66MB! You hinted to cache and so I looked around my Raid controller settings, specifically write through vs write back. I will change it from write back to write through later tonight and report back. The pattern is all files new files look to be 66MB until some time later. I do have a 4GB mem cache on this Raid controller (Areca). - aurf

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File size diff between NFS mount and local disk
by aurfalien 03 May '12

03 May '12

Hi all, I never really paid attention to this but a file on an NFS mount is showing 64M in size, but when copying the file to a local drive, it shows 2.5MB in size. My NFS server is hardware Raided with a volume stripe size of 128K were the volume size is 20TB. My NFS clients are the same distro as the server being Centos. Is this due to my stripe size? Nuggets are appreciated. - aurf

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Discuss May 2012