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34753 discussions

DNS Setting
by str tux 01 Mar '06

01 Mar '06

Hello People, In my DNS setting I added A record of www for our company website. It works, when you go to http://www.mycompany.com; it resolves and it shows the website content. But in addition, I want also some kind of redirection or mapping (i don't know what you called that) that when people go to http://mycompany.com (without www), it should forward also to the www server. How to do it? Thanks in advance. S.Tux

5 7

to <cr> or not
by Robert Moskowitz 01 Mar '06

01 Mar '06

I have had some success (read no noticed problems), moving some text conf files from a Win <cr,lf> format to Linux and have them work. For example my zone files, moving them from my Win DNS server. But what about other files? I guess I want to know this more to prevent a mistake from crashing things, as I do have GEDIT. If I were to build an anaconda-ks.cfg in notepad, write it to a floppy then did a linux ks=floppy, would it work? I have search the archives and google, but either I am missing the right search words, or something.

5 4

yum/x86_64
by Les Mikesell 01 Mar '06

01 Mar '06

Starting from the 4.2 Server install on x86_64 I did a "yum update", then "yum install openssl openssl-utils" and it appears to have installed an assortment of i386 programs and libs. How do I get rid of the wrong ones? Specifically, what I want is the right stuff to run the beta VMware server. It looks like it needs some X libs and yum wants to install i386 versions of those too. -- Les Mikesell lesmikesell(a)gmail.com

3 2

restarting on scalix - thankyou
by Robert Moskowitz 01 Mar '06

01 Mar '06

thank you all for your help. Recently, ver 10 came out for scalix and it includes all the 'third party' pieces like JDK and Tomcat. So now I am reading up on kickstart to rebuild this system and start clean. I have copied all of my changed files (I hope!!) onto my notebook, and am doing the one mod i need for kickstart (original was a CD install, this time FTP). So I will know very shortly if this will all work! I see in the anaconda file the instructions for partitioning my hard drive, which is very good as I did not clearly write down what I did! Another fun filled day!

1 0

Updating my install directory
by Robert Moskowitz 01 Mar '06

01 Mar '06

Maybe YAM is the 'only' way to do this, and if so, well then its got to wait a while.... Situation: Right now the only usable disk space to locate the install CD files for an FTP/HTTP install is a Win2000 server. Accessed via FTP/HTTP. So when I do an install from it, I then need to do a yum update and it takes quite some time. At some point in the next quarter, I will be stable with Centos and my install will move to a Centos server and I guess then I would use YAM. Is there something I can download from one of the mirrors to bring this directory fairly up to date?

1 0

LDAP authentication problems
by Kai 01 Mar '06

01 Mar '06

I am working on a ldap base to authenticate user. My problem is binding to ldap with phpldapadmin or cpu. I can bind anonymously with phpldapadmin. ldapadd, ldapsearch etc. works. Users in the database can logon, so the authentication works, but I cant bind.... I need some input please, I cant find the missing link. ERRORS: # ldappasswd norman SASL/DIGEST-MD5 authentication started Please enter your password: ldap_sasl_interactive_bind_s: Internal (implementation specific) error (80) additional info: SASL(-13): user not found: no secret in database OK: [root@server1 ldap]# passwd norman Changing password for user norman. New UNIX password: Retype new UNIX password: LDAP password information changed for norman passwd: all authentication tokens updated successfully.

1 0

Off-Topic Mambo Vulnerabilities & Patches
by Jim Smith 28 Feb '06

28 Feb '06

On the Mambo CMS site there are vulnerabilities found. Whilst this is not a CentOS problem, people rent/deploy servers (CentOS) on the net with Mambo. A guy in one of the user forums on the net, had his Mambo 4.5.2 server hacked and they installed some interesting stuff in /tmp . When a server is hacked it gives bad PR for the underlying OS. <----announcement on http://www.mamboserver.com/-----> Investigations by GulfTech Research And Development have revealed a long standing weakness in Mambo that could allow a hacker to compromise sites built on Mambo. The firms findings will be published in about a week's time. The Mambo development team has created fixes for versions 4.5.3 and 4.5.3h. The new patch files can be found at MamboXchange The patch packages are delivered in both ZIP and TAR.GZ formats - select whichever is right for you. Each package contains two files - content.php and mambo.php. These should replace the corresponding files in your existing installation, as follows: (1) The first file (content.php) should be used to overwrite this file:/components/com_content/content.php. (2) The second file (mambo.php) should be used to overwrite this file: /includes/mambo.php. If you are running an earlier version of Mambo than 4.5.3 we recommend that you consider upgrading. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

4 4

Bandwidth limiting and shaping
by Mace Eliason 28 Feb '06

28 Feb '06

Hi, I have a client that is looking for an solution to do bandwidth monitoring and traffic shapping. I would like to use Centos if possible, but I need somthing that has a GUI so they can easily make changes and updates. It would have to be ip based or mac address. What would you suggest. I have looked a Ipcop and smoothwall as solutions so far. Thanks

10 19

Busy day today...
by Will McDonald 28 Feb '06

28 Feb '06

What's the procedure for filing bug reports related to kernel panics on CentOS/RHEL? I've just had the following kernel panic on one of the new mailstores (argh!). Would this have to be reproduceable to warrant a bug report? Feb 28 14:40:53 tempmailstore1a kernel: eip: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: eip: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: ------------[ cut here ]------------ Feb 28 14:40:53 tempmailstore1a kernel: kernel BUG at include/asm/spinlock.h:133! Feb 28 14:40:53 tempmailstore1a kernel: invalid operand: 0000 [#1] Feb 28 14:40:53 tempmailstore1a kernel: SMP Feb 28 14:40:53 tempmailstore1a kernel: Modules linked in: nfs iptable_filter ip_tables nfsd exportfs lockd sunrpc ip_vs drbd(U) md5 ipv6 autofs4 button batte ry ac ohci_hcd tg3 floppy sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod megaraid_mbox megaraid_mm sd_mod scsi_mod Feb 28 14:40:53 tempmailstore1a kernel: CPU: 0 Feb 28 14:40:53 tempmailstore1a kernel: EIP: 0060:[<c02cfb49>] Not tainted VLI Feb 28 14:40:53 tempmailstore1a kernel: EFLAGS: 00010046 (2.6.9-22.0.1.ELsmp) Feb 28 14:40:53 tempmailstore1a kernel: EIP is at _spin_lock+0x1c/0x34 Feb 28 14:40:53 tempmailstore1a kernel: eax: c02e35dc ebx: c144ba58 ecx: f6acbed8 edx: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: esi: e386cc00 edi: c16848c8 ebp: 2002002c esp: f6acbedc Feb 28 14:40:53 tempmailstore1a kernel: ds: 007b es: 007b ss: 0068 Feb 28 14:40:53 tempmailstore1a kernel: Process nfsd (pid: 6512, threadinfo=f6acb000 task=f7a16330) Feb 28 14:40:53 tempmailstore1a kernel: Stack: c16848b8 c0146a64 c16848b8 c144b998 c16848b8 e386cc00 c16848c8 00000286 Feb 28 14:40:53 tempmailstore1a kernel: c0146e84 e386cc00 bbfb9f0b fffffff5 f8e7cf20 f8e6ac04 00000000 f8e7eae4 Feb 28 14:40:53 tempmailstore1a kernel: 00000000 f7dd9b50 f7dd9a00 e386cc00 f6acbf55 f7dd9a00 f8e6923c c19f31f4 Feb 28 14:40:53 tempmailstore1a kernel: Call Trace: Feb 28 14:40:53 tempmailstore1a kernel: [<c0146a64>] cache_flusharray+0x1a/0x9c Feb 28 14:40:53 tempmailstore1a kernel: [<c0146e84>] kfree+0x43/0x51 Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6ac04>] cache_check+0x11c/0x126 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6923c>] svcauth_unix_set_client+0x68/0xb5 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e69561>] svcauth_unix_accept+0x189/0x292 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6877f>] svc_set_client+0x43/0x46 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e66292>] svc_process+0x284/0x6ce [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb745a>] nfsd+0x1cc/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb728e>] nfsd+0x0/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<c01041f1>] kernel_thread_helper+0x5/0xb Feb 28 14:40:53 tempmailstore1a kernel: Code: 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 53 89 c3 81 78 04 ad 4e ad de 74 18 ff 74 24 04 68 dc 35 2e c0 e8 e 3 26 e5 ff 58 5a <0f> 0b 85 00 96 26 2e c0 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb Feb 28 14:40:53 tempmailstore1a kernel: ------------[ cut here ]------------ Feb 28 14:40:53 tempmailstore1a kernel: kernel BUG at include/asm/spinlock.h:133! Feb 28 14:40:53 tempmailstore1a kernel: invalid operand: 0000 [#2] Feb 28 14:40:53 tempmailstore1a kernel: SMP Feb 28 14:40:53 tempmailstore1a kernel: Modules linked in: nfs iptable_filter ip_tables nfsd exportfs lockd sunrpc ip_vs drbd(U) md5 ipv6 autofs4 button batte ry ac ohci_hcd tg3 floppy sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod megaraid_mbox megaraid_mm sd_mod scsi_mod Feb 28 14:40:53 tempmailstore1a kernel: CPU: 1 Feb 28 14:40:53 tempmailstore1a kernel: EIP: 0060:[<c02cfb49>] Not tainted VLI Feb 28 14:40:53 tempmailstore1a kernel: EFLAGS: 00010002 (2.6.9-22.0.1.ELsmp) Feb 28 14:40:53 tempmailstore1a kernel: Fatal exception: panic in 5 seconds Feb 28 14:40:53 tempmailstore1a kernel: eip: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: EIP is at _spin_lock+0x1c/0x34 Feb 28 14:40:53 tempmailstore1a kernel: eax: c02e35dc ebx: c1470e58 ecx: c2ea1ed8 edx: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: esi: e386cc00 edi: c1470da8 ebp: 20000080 esp: c2ea1edc Feb 28 14:40:53 tempmailstore1a kernel: ds: 007b es: 007b ss: 0068 Feb 28 14:40:53 tempmailstore1a kernel: Process nfsd (pid: 6513, threadinfo=c2ea1000 task=f7b40130) Feb 28 14:40:53 tempmailstore1a kernel: Stack: c1470d98 c0146a64 c1470d98 c1470d98 c1470d98 e386cc00 c1470da8 00000286 Feb 28 14:40:53 tempmailstore1a kernel: c0146e84 e386cc00 bbfb9f0b fffffff5 f8e7cf20 f8e6ac04 00000000 f8e7eae4 Feb 28 14:40:53 tempmailstore1a kernel: 00000000 f519c350 f519c200 e386cc00 c2ea1f55 f519c200 f8e6923c c19f31f4 Feb 28 14:40:53 tempmailstore1a kernel: Call Trace: Feb 28 14:40:53 tempmailstore1a kernel: [<c0146a64>] cache_flusharray+0x1a/0x9c Feb 28 14:40:53 tempmailstore1a kernel: [<c0146e84>] kfree+0x43/0x51 Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6ac04>] cache_check+0x11c/0x126 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6923c>] svcauth_unix_set_client+0x68/0xb5 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e69561>] svcauth_unix_accept+0x189/0x292 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6877f>] svc_set_client+0x43/0x46 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e66292>] svc_process+0x284/0x6ce [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb745a>] nfsd+0x1cc/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb728e>] nfsd+0x0/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<c01041f1>] kernel_thread_helper+0x5/0xb Feb 28 14:40:53 tempmailstore1a kernel: Code: 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 53 89 c3 81 78 04 ad 4e ad de 74 18 ff 74 24 04 68 dc 35 2e c0 e8 e 3 26 e5 ff 58 5a <0f> 0b 85 00 96 26 2e c0 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb Feb 28 14:40:53 tempmailstore1a kernel: ------------[ cut here ]------------ Feb 28 14:40:53 tempmailstore1a kernel: Fatal exception: panic in 5 seconds Feb 28 14:40:53 tempmailstore1a kernel: kernel BUG at include/asm/spinlock.h:133! Feb 28 14:40:53 tempmailstore1a kernel: invalid operand: 0000 [#3] Feb 28 14:40:53 tempmailstore1a kernel: SMP Feb 28 14:40:53 tempmailstore1a kernel: Modules linked in: nfs iptable_filter ip_tables nfsd exportfs lockd sunrpc ip_vs drbd(U) md5 ipv6 autofs4 button batte ry ac ohci_hcd tg3 floppy sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod megaraid_mbox megaraid_mm sd_mod scsi_mod Feb 28 14:40:53 tempmailstore1a kernel: CPU: 0 Feb 28 14:40:53 tempmailstore1a kernel: EIP: 0060:[<c02cfb49>] Not tainted VLI Feb 28 14:40:53 tempmailstore1a kernel: EFLAGS: 00010002 (2.6.9-22.0.1.ELsmp) Feb 28 14:40:53 tempmailstore1a kernel: EIP is at _spin_lock+0x1c/0x34 Feb 28 14:40:53 tempmailstore1a kernel: eax: c02e35dc ebx: c144ba58 ecx: ca0cce98 edx: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: esi: e386cc00 edi: c16848c8 ebp: 2002002c esp: ca0cce9c Feb 28 14:40:53 tempmailstore1a kernel: ds: 007b es: 007b ss: 0068 Feb 28 14:40:53 tempmailstore1a kernel: Process rpc.mountd (pid: 6525, threadinfo=ca0cc000 task=c1b182b0) Feb 28 14:40:53 tempmailstore1a kernel: Stack: c16848b8 c0146a64 c16848b8 c144b998 c16848b8 e386cc00 c16848c8 00000286 Feb 28 14:40:53 tempmailstore1a kernel: c0146e84 e386cc00 f7a1c5c0 440467fd ca0cceec f8e68d35 ca0ccefa 000000c0 Feb 28 14:40:53 tempmailstore1a kernel: 000000a8 00000018 00000014 bfe1109c f8e7ff66 31343131 34393331 00003335 Feb 28 14:40:53 tempmailstore1a kernel: Call Trace: Feb 28 14:40:53 tempmailstore1a kernel: [<c0146a64>] cache_flusharray+0x1a/0x9c Feb 28 14:40:53 tempmailstore1a kernel: [<c0146e84>] kfree+0x43/0x51 Feb 28 14:40:53 tempmailstore1a kernel: [<f8e68d35>] ip_map_parse+0x194/0x1bc [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e68ba1>] ip_map_parse+0x0/0x1bc [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6b741>] cache_write+0xf8/0x115 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<c0159d24>] vfs_write+0xb6/0xe2 Feb 28 14:40:53 tempmailstore1a kernel: [<c0159dee>] sys_write+0x3c/0x62 Feb 28 14:40:53 tempmailstore1a kernel: [<c02d0fb7>] syscall_call+0x7/0xb Feb 28 14:40:53 tempmailstore1a kernel: [<c02d007b>] __lock_text_end+0x232/0x100f Feb 28 14:40:53 tempmailstore1a kernel: Code: 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 53 89 c3 81 78 04 ad 4e ad de 74 18 ff 74 24 04 68 dc 35 2e c0 e8 e 3 26 e5 ff 58 5a <0f> 0b 85 00 96 26 2e c0 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb Feb 28 14:40:53 tempmailstore1a kernel: <0>Fatal exception: panic in 5 seconds Feb 28 14:40:53 tempmailstore1a kernel: Unable to handle kernel paging request at virtual address 2b69616f Feb 28 14:40:53 tempmailstore1a kernel: printing eip: Feb 28 14:40:53 tempmailstore1a kernel: f887eaa1 Feb 28 15:09:01 tempmailstore1a syslogd 1.4.1: restart. Will.

3 3

vpopmail over NFS not seeing new messages.
by Will McDonald 28 Feb '06

28 Feb '06

Hi all. We've just migrated our back-end NFS mailstore from FC1 systems to CentOS4 and are experiencing problems/delays with vpopmail and user Maildirs. IMAP is fine, it's just POP access that causes us problems. Now, NFS mounts successfully, the clients can see /home/vpopmail and serve content as we would expect. IMAP works perfectly and sees new messages as soon as they're delivered into the Maildir, but POP doesn't seem to see new messages until about 90 minutes after it arrived. Messages can be seen in users' Maildir/new on the filesystem. The timestamps on new messages on the NFS filesystems don't appear to be formatted correctly, I'm guessing this could cause the POP weirdness? On an NFS client... [root@mailserv2 new]# ls -ltr total 4 -rw------- 1 vpopmail vchkpw 854 Feb 28 2006 1141126119.27119.mailserv1,S=773 Whereas on the NFS mailstore... [root@tempmailstore1a new]# ls -ltr total 4 -rw------- 1 vpopmail vchkpw 854 Feb 28 12:44 1141126119.27119.mailserv1,S=773 'touch'ing the files, either from the client or server doesn't appear to fix the timestamps. The old FC mailstores were running... kernel 2.4.22-1.2188.nptl nfs-utils-1.0.6-1 DRBD 0.6.12 heartbeat-1.0.4-2.fr.c.1.um.2 The new CentOS mailstores and all their clients are running... kernel 2.6.9-22.0.1.ELsmp nfs-utils-1.0.6-65.EL4 DRBD 0.7.14 heartbeat-1.2.3.cvs.20050927-1.centos4 Qmailrocks 2.2.0 /etc/exports on the mailstores contains... /mnt/drbd/ mailserv1(rw,sync,no_root_squash) /mnt/drbd/ mailserv2(rw,sync,no_root_squash) /mnt/drbd/ mailserv3(rw,sync,no_root_squash) /mnt/drbd/ mailserv4(rw,sync,no_root_squash) And the NFS mounts on the client mailservers look like... mailstore1:/mnt/drbd/home /home nfs defaults 0 0 If anyone's seen this or can shed any light it'd be much appreciated. Will.

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