Discuss

discuss@lists.centos.org

34753 discussions

Help with a good recovery plan.. Linux rescue?
by Glenn 20 Jan '09

20 Jan '09

Hello All, I have a machine that crashed. Some part of the motherboard (power supply-related) went south. The motherboard, CPU and memory have been replaced with a much newer architecture. The OS and data are intact on two SATA drives that were RAID1 with LVM. I am going to use 'linux rescue' to recover the LVM backup so I can mount the RAIDs (there were two) in a new CentOS install, on a third disk. I have no indication that I could recover the previous CentOS (somewhere between CentOS 5.1 and 5.2 on updates). Can I use 'linux rescue' to fix that OS up to boot it? The kernel panics in its current state (because the hardware architecture is so strikingly different). What is the methodology of fixing the kernel in this circumstance? Thanks in Advance! Glenn

3 2

(OT) Firewall Question
by Jun Salen 20 Jan '09

20 Jan '09

Hi List, I am not familiar with the commands of IPtables so I want use tools on top of it. What do you suggest. Can I make test of it inside CentOS on top of VMWare server with only one LAN inteface? I try to use Pfsense, I believe it has easy to understand GUI but it fails to install on my desktop machine to test, maybe due to hardware comaptibility. Kernel panic during boot even after disabling ACPI. If you have suggestion on tools or template for Iptables to suggest or share, please do. Thank you very much. junji aisalen.wordpress.com Linux Registered User #253162 CentOS User Get your new Email address! Grab the Email name you've always wanted before someone else does! http://mail.promotions.yahoo.com/newdomains/aa/

2 1

Starting slapd: /bin/bash: /tmp/start-slapd.K12378: Permission denied
by Brett Wiesner 20 Jan '09

20 Jan '09

Hi, I'm running Centos 5, with openldap Version: 2.3.27 Release: 8.el5_2.4. When I run: $ sudo /etc/init.d/ldap start I get the following error: Starting slapd: /bin/bash: /tmp/start-slapd.l14891: Permission denied (obviously the temp file number changes every time). It appears to be a permission problem but I thought I did everything to set up the permissions correctly... Everything is owned by the ldap user: $ cd /etc/openldap/ $ ls -al total 40 drwxr-xr-x 4 ldap ldap 4096 Jan 16 18:07 . drwxr-xr-x 66 root root 4096 Jan 16 17:55 .. drwxr-xr-x 2 ldap ldap 4096 Jul 9 2008 cacerts -rw-r----- 1 ldap ldap 886 Jul 9 2008 DB_CONFIG.example -rw-r--r-- 1 ldap ldap 246 Jul 9 2008 ldap.conf drwxr-xr-x 3 ldap ldap 4096 Jan 16 17:40 schema -rw-r----- 1 ldap ldap 3456 Jan 16 18:07 slapd.conf -rw-r----- 1 ldap ldap 12288 Jan 16 18:07 .slapd.conf.swp $ sudo ls -al /var/lib/ldap/ total 572 drwx------ 2 ldap ldap 4096 Jan 16 17:41 . drwxr-xr-x 21 root root 4096 Jan 16 17:40 .. -rw-r--r-- 1 ldap ldap 2048 Jan 16 17:41 alock -rw------- 1 ldap ldap 24576 Jan 16 17:41 __db.001 -rw------- 1 ldap ldap 278528 Jan 16 17:41 __db.002 -rw------- 1 ldap ldap 270336 Jan 16 17:41 __db.003 -rw------- 1 ldap ldap 98304 Jan 16 17:41 __db.004 -rw------- 1 ldap ldap 352256 Jan 16 17:41 __db.005 -rw------- 1 ldap ldap 24576 Jan 16 17:41 __db.006 -rw------- 1 ldap ldap 10485760 Jan 16 17:41 log.0000000001 When I run slaptest, it doesn't look great, but it doesn't look like a problem... $ sudo /usr/sbin/slaptest bdb_db_open: Warning - No DB_CONFIG file found in directory /var/lib/ldap: (2) Expect poor performance for suffix dc=XXXX,dc=net. bdb_db_open: db_open(/var/lib/ldap/id2entry.bdb) failed: No such file or directory (2) bdb(dc=XXXX,dc=net): Unknown locker ID: 0 backend_startup_one: bi_db_open failed! (2) slap_startup failed (test would succeed using the -u switch) Does anyone know why I'm getting this permission denied message? Thanks, Brett

4 4

prettyprint problem in CentOS 5.2
by tbuchanan＠vinu.edu 19 Jan '09

19 Jan '09

I'd like to ask for help with a problem in CentOS 5.2 when printing from the command line with the prettyprint option selected. Program students print out their code with the command: lpr -P<printer_name> -o prettyprint -o job-sheets=none <filename_to_be_printed> The prettyprint option, as you know, puts a banner with file name and date at the top, and uses a small font, and (for a color printer) uses different colors for different parts of the file. This last worked with a fully updated CentOS 4.7 server but after a move to a different fully updated CentOS 5.2 server the prettyprint option does nothing unless the first line of the file to be printed contains /*hello*/, (discovered quite by accident). CUPS on CentOS 4.7 was cups-1.1.22-0.rc1.9.27.el4_7.1 while the version on CentOS 5.2 is cups-1.2.4-11.18.el5_2.3. I tried printing from a couple other Linux distros, Fedora 10 (cups-1.3.9-6.fc10.i386) and Ubuntu 8.04 LTS, both of which were fully updated. The Fedora 10 exhibited the same problem while the Ubuntu 8.04 LTS printed properly with the prettyprint option. Is this a bug with the way RedHat implements CUPS or am I missing something? The only thing I found in a quick Google search that was similar (but with opposite effects, if I understand correctly) was this CUPS bug report http://www.cups.org/str.php?L2158 which gives no resolution. For now the instruction is having the students print via a script he created which adds \*hello*\ to the first line of their code. Any help would be appreciated. Ted

1 0

Wifi card - Intel PRO 5300
by MOKRANI Rachid 19 Jan '09

19 Jan '09

Hi, I'm trying to use my wireless connection on a HP 8530w laptop with no success. My OS : CentOS 5.2 x86_64 (kernel 2.6.18-92) The wifi card is : Intel PRO 5300 Is somenone try it with success ? Please, any help will be appreciated. Best regards. __________________________ Ce message (et toutes ses pièces jointes éventuelles) est confidentiel et établi à l'intention exclusive de ses destinataires. Toute utilisation de ce message non conforme à sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'IFP décline toute responsabilité au titre de ce message. This message and any attachments (the message) are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. IFP should not be liable for this message. Visitez notre site Web / Visit our web site : http://www.ifp.fr __________________________

4 6

CENTOS 4.7 or 5.2 32 bits O.S. for ORACLE DB server??
by mcclnx mcc 19 Jan '09

19 Jan '09

we plan to setup our ORACLE database server (32 bits DB) and use dell r900 server. This server can put up to 128GB RAM. We are thinking use 32 bits CENTOS 4.7 or 5.2. My concern about CENTOS 5.2 is it only support up to 16 GB RAM on 32 bits O.S. Any suggestion? ______________________________________________________________________________________________________ 付費才容量無上限？Yahoo!奇摩電子信箱2.0免費給你，信件永遠不必刪！ http://tw.mg0.mail.yahoo.com/dc/landing

6 8

Cron daemon with better precision?
by Tim Nelson 19 Jan '09

19 Jan '09

Greetings list- I'm on the hunt for a cron scheduler that supports definitions to the second. Obviously, every cron daemon supports minute/hour/etc but I have a special application that requires finer granularity. I know I know... someone will say "The load will be horrendous on your system" or "Why don't you simply schedule your cron every minute and make up the higher precision in your application?". Unfortunately, this will not work. I really need a cron daemon that can schedule to the second. All ideas/thoughts/suggestions/etc welcome. Thank you! Tim Nelson Systems/Network Support Rockbochs Inc. (218)727-4332 x105

6 5

exim rpm with DKIM support for CentOS?
by Timo Neuvonen 18 Jan '09

18 Jan '09

I haven't learned a lot about DKIM yet, but I guess I'll need to implement it in the near future, at first for signing outgoing mail. I'm using exim as an MTA. I guess the standard exim 4.63 binary rpm from CentOS repos propably does not have DKIM support yet? Or does it, maybe? Provided the standard binary rpm does not provide this functionality, what would be the most decent way to get this functionality? Does the standard source rpm already include the necessary code, re-building the binary rpm with some additional option wouldn't sound bad. If not going this way, what could be a realiable source for a suitable exim rpm (either source or both the x86 and 86_64 binaries) for use in CentOS? Regards, Timo

1 0

IPSEC tunnel for remote internet access
by Mr.Vandeley 18 Jan '09

18 Jan '09

Hello list, I need to provide internet access through a proxy server on a central office to a remote Lan on a branch office (LAN-B). Also there is an internal server that LAN-B machines should reach. Below there is a simple diagram. Right now I have an IPsec VPN tunnel between offices, and LAN-B can acces LAN-A machines without problems. But LAN-B machines can't access the remote proxy or the internal server on a different LAN. Pings from a LAN-B PC to the PROXY server actually reach the proxy but answers get stuck on the VPN-Gateway-A. VPN-Gateway-A says to the proxy server that network LAN-B is unreachable. I am really confused. Both, router and VPN-Gateway-A knows how to reach LAN-B machines. I think that this behavior is due to the fact that VPN tunnel is up only for packets between LAN-A and LAN-B, so packets from the proxy server (on a different LAN) doesn't get routed to the tunnel. And since this, VPN-Gateway-A doesn't know how to reach LAN-B. All routers, proxy and VPN gateways are Centos based PCs. VPN gateways have Centos IPSEC implementation. Maybe IPsec is not appropriate on this case. Maybe openvpn fits better. [internet] | (proxy) (internal server) | [LAN] | (router) | [LAN-A] | ((VPN-Gateway-A)) | [wifi link] | ((VPN-Gateway-B)) | [LAN-B] Hope it is clear enough. -- Mr. Vandeley.

1 0

bind cname for corporate web
by Dhaval Thakar 18 Jan '09

18 Jan '09

Hi, I am using bind 9.6.0. I want to configure cname for corporate web (example.com) When I mention following my company site opens without sub domain. e.g example.com I dont need to mention www.example.com. @ IN A x.x.x.x I have two ISP with radware link proof. Radware device has its own dns e.g abc.com I have web record on link proof e.g www.abc.com (ip x.x.x.1 & y.y.y.1) Now when I am trying to configure following my domain doesn't resolve. @ IN CNAME www.abc.com. OR example.com. IN CNAME www.abc.com. Kindly guide me to create example.com aliased to www.abc.com Thanks & Regards

2 1

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss