Discuss February 2009

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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

6 7

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

9 17

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.

8 8

mod_mono on centos5?
by Dave 07 Sep '09

07 Sep '09

Hello, Does anyone have mod_mono rpm or srpm compiled for centos5? Thanks. Dave.

4 4

Dell Poweredge R300
by Nicholas 07 Jun '09

07 Jun '09

Hi all, Just found out that the Poweredge R300 cant even load the CentOS 5.2 64bit installer. Had to revert to Ubuntu. Seems its a driver problem. Pity, but does this kind of case apply to many other servers? --- OSCC MAMPU MyMeeting Version 2.0 Release http://knowledge.oscc.org.my/solution-areas/application/mymeeting

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Upgrade mail server to new machine
by Thom Paine 11 May '09

11 May '09

I have an old RHEL3 box that I am upgrading to CentOS5. I picked up a new Dell Poweredge R200 to use for that. Is there an easy way to copy all the user accounts and existing mail from the old server to the new one? Thanks. -- -=/>Thom

6 7

Antivirus for CentOS? (yuck!)
by Amos Shapira 25 Apr '09

25 Apr '09

Hi All, Yes, I know, it's really really embarrassing to have to ask but I'm being pushed to the wall with PCI DSS Compliance procedure (http://en.wikipedia.org/wiki/PCI_DSS) and have to either justify why we don't need to install an anti-virus or find an anti-virus to run on our CentOS 5 servers. Whatever I do - it needs to be convincing enough to make the PCI compliance guy tick the box. So: 1. Has anyone here gone though such a procedure and got good arguments against the need for anti-virus? 2. Alternatively - what linux anti-virus (oh, the shame of typing this word combination :() do you use which doesn't affect our systems performance too much. The reviewed servers run both Internet-facing web applications and internal systems, mostly using proprietary protocol for internal communications. They are being administrated remotely via IPSec VPN (and possibly in the future also OpenVPN). Thanks, --Amos

24 44

pop3 attack
by James Pifer 14 Mar '09

14 Mar '09

I was looking at my maillog and it looks like someone is trying to get into my pop3 server. Dec 9 15:28:54 mailserver dovecot: pop3-login: Aborted login: user=<alexis>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 Dec 9 15:29:08 mailserver dovecot: pop3-login: Aborted login: user=<alfonso>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 Dec 9 15:29:14 mailserver dovecot: pop3-login: Aborted login: user=<alexis>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 Dec 9 15:29:18 mailserver dovecot: pop3-login: Aborted login: user=<alfonso>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 Dec 9 15:29:36 mailserver dovecot: pop3-login: Aborted login: user=<alfred>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 How worried should I bee about this? Any suggestions for dealing with it? Thanks, James

22 59

Easiest way to get samba up and working for Windows users?
by Noob Centos Admin 07 Mar '09

07 Mar '09

Everytime I have to setup samba to handle Windows users, sometime inadvertently goes wrong or doesn't work the way I expected, or takes forever to setup, especially when there are many users and various policies. So far, the easiest, sureest and quickest method appears to be install WindowsXP into VMWare and use it to handle Windows sharing. Needless to say, this strucks me as rather ironic and stupid. Thus could anybody please suggest a working frontend to samba that makes it easy to add users, set their permissions and get something that works like basic windows file sharing? So far I've tried the following which all don't quite work. 1. CentOS's samba configuration tool - added users never show up on the share configuration so the only shares it could create was for public access. 2. Webmin - thinks it added the users, but again they never show up when checked against the bundled CentOS tool and needless to say, the shares never work too 3. Samba SWAT - Very confusing tool, selecting shares sometimes end up as another share, and again, doesn't seem to work. So I just need a very basic tool that will reliably allow me to do the following - specify user name, specify password, and maybe specify a group - specify a share the user or group has read only or read/write access - force new files/folders to take on group ID so that it behaves like a normal windows share Don't need print services or anything, it's just far easier to dump a hardware print server into the network than to contemplate the additional complexity of making something like CUPS work. Just need to make sure that the Windows users can browse to the folders, get a prompt for their login and password where needed. Thanks!

7 28

programs with no man pages?
by Les Mikesell 06 Mar '09

06 Mar '09

I accidentally typed ss instead of ls and was surprised when it did something... I can use rpm's --whatprovides to see where it came from, but how are you supposed to find out want a program does when it doesn't have a man page? -- Les Mikesell lesmikesell(a)gmail.com

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Discuss February 2009