Discuss May 2010

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Centos v3.3 CD 2
by Luis-Miguel Astudillo 15 Nov '11

15 Nov '11

Sorry, I have been away for a while. has anyone fixed CD2 fotr CentOS v3.3 ? -- Luis

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Lingering dhclient issue
by Alfred von Campe 22 Jun '11

22 Jun '11

I recently reconfigured some CentOS 4.3 systems that were using DHCP to use static IP addresses. At the same time, the systems were moved to a new VLAN. Here is the approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have reversed steps 1 and 2 on some of the systems. The problem was that the dhclient process didn't go away, and kept renewing the old lease. Our DHCP server is configured to contact the DNS server and update the entry for each host it serves. So the DNS entries for these systems were pointing to the old address in the old VLAN. The eth0 interface itself just kept the static IP address for which it was configured. It took me a while to figure out what was going on. My question is, what could I have done to avoid this (other than killing the dhclient process)? Is there a better way to reconfigure an interface to use a static address? I am not interested in solutions that involve using a GUI (i.e., only command line solutions). Thanks, Alfred

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what pkg contains libstdc++-libc6.2-2.so.3
by Fong Vang 02 Feb '11

02 Feb '11

In CentOS 4.1/2, what package contains this library: libstdc++-libc6.2-2.so.3? I installed a couple of the compat- packages, but this library is still missing.

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gdm_slave_xioerror_handler problem
by sync 07 Jan '11

07 Jan '11

Hi , guys: Today , I work on my laptop which uses the CentOS x86_64 operating system , Suddenly the X-windows restarts when left at the login screen for more than a few seconds. The error in my syslog is: Apr 12 15:26:45 localhost gdm[2892]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 This message came up serval times previously ~ Any other help would be nice. Thanks in advance ~

2 1

good centos/rhel source for latest spamassassin?
by Eero Volotinen 11 Aug '10

11 Aug '10

Is there any good rpm source for latest spamassassin for centos/rhel ? Currently using from dag's, but is is a bit old version nowdays. -- Eero

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compilers a security risk?
by Dave Stevens 21 Jul '10

21 Jul '10

I manage a web hosting server that we've recently upgraded, in part so we could accommodate a domain that will enable community mapping. In a recent exchange of mails one developer said: "I could build the package directly on the server machine you have, provided that the potential security risk posed by having compilers installed is not an issue." and another said: "What sort of security risk is there in having compilers installed on a working server? "Obviously we can remove the compilers, however when Mapserver or postgis get updated, we will need to build new packages somewhere. One option: create a second VM for mapchat. We'll put the build environment on it, and only turn it on to make new packages." I don't have enough experience to assess the security issues. Does anyone have an opinion on this? It would be simple and feasible to allocate another domain as suggested above. Dave -- "It is no measure of health to be well adjusted to a profoundly sick society." Krishnamurti

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Firefox slower on GMail since update to CentOS 5.5
by Mathieu Baudier 01 Jul '10

01 Jul '10

Hello, since I upgraded from CentOS x86_64 5.4 to 5.5, I noticed that Firefox has become significantly slower on GMail (or Google Apps Mail). The page becomes slow to scroll as soon as there are more than a few mails in a conversation (like in a typical CentOS mailing list thread). Did anyone else notice that as well? (I guess that I'm not the only GMail user around) Could I have missed something / do something wrong? More details: - I did a fresh install from the 5.5 install DVD, keeping only the home directories - I'm using the Nvidia driver from elrepo (but I had the pb also with the default driver) Cheers, Mathieu

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Samba3x daily logged errors with Win7 clients
by Steve Snyder 22 Jun '10

22 Jun '10

In the course of upgrading from CentOS 5.4 to CentOS 5.5 I changed from using the samba (v3.0.x) packages to the samba3x (v3.3.8) packages, mostly because the newer version was said to better support Win7. The Samba server services Linux, WinXP, and Win7 clients. Now I get many, many errors logged to the Samba logs shortly after 3:00 AM, but only from the Win7 clients. I get roughly 430 sets of these messages in a twenty-second (!) period: [2010/05/25 03:17:36, 1] smbd/service.c:make_connection_snum(748) create_connection_server_info failed: NT_STATUS_ACCESS_DENIED These errors are never seen in the Samba logs that track the Linux and WinXP clients, only the Win7 clients. I don't run virus scans or anything else (that I know of) on the Win7 machines in the middle of the night, but I do have the usual cron jobs running on the CentOS server around that time. Could be related to log rotation or something like that? I haven't seen a loss of connectivity, but then I don't use the client machines at 3:15AM. If there is a brief connection failure I wouldn't know it. I used my old (Samba 3.0.x) config file, user definitions and password database when I made the switch to the new (Samba 3.3.8) server and the newer code didn't seem to have any complaints with them. The client shares seem to work without any problems. Any thoughts on what could be generating all these errors? Thanks.

2 3

Monitor Network Traffic
by sadas sadas 11 Jun '10

11 Jun '10

What is the best way to monitor the total incoming / outcoming network traffic of CentOS server. I think that the solution is to monitor the network interfaces and to send SNMP packets to remote server. But is it possible? regards

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Created a custom/minimal CentOS 5.x install ISO
by Digimer 09 Jun '10

09 Jun '10

Hi all, I'd like to try rolling a somewhat stripped down and customized CentOS DVD. This is particularly interesting to me now that CentOS 5.5 is 2 DVDs. I dare not call it a new distro as I suspect I will be the only one to use it. ;) I've been googling for ways to do this, figuring it must be somewhat straight forward, but my google-fu is weak it seems. Can someone point me to a how-to or doc on rolling your own CentOS derivative ISO? Also, I'm not talking about just rolling a new ISO, I can do that already, I want to update the list of RPMs (not)available to the installer. Thanks! PS - I found this link, but it's from 2006. Otherwise it's in-line with the kind of thing I want to do: http://lateral.netmanagers.com.ar/stories/38.html -- Digimer E-Mail: linux(a)alteeve.com AN!Whitepapers: http://alteeve.com Node Assassin: http://nodeassassin.org

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Discuss May 2010