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off topic question plss need ur help
by fabian dacunha 15 Jul '08

15 Jul '08

Dear All, I have been using centos 5.1 for quite some time as out DNS and mail server and been workin fine i use sendmail as my mail server i did setup a backup mail server as per docs and ran th dns test from http://www.checkdns.net and it says both the mail servers are fine but i would like to know the following how would i really know if my main primary server is down all my mails r goin to my secondary mail server and when my primary is up are the mails copied back to my primary i did put down my mail server for abt 3 hrs cause cant keep it down for long but did not really see anything also are there any websites that can chec both my mail servers correctly apprecite and thnaks -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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Miredo relay port question
by Robert Moskowitz 15 Jul '08

15 Jul '08

I am bringing up a Miredo server and relay on my new iPv6 network. I have been reading the RFC and the man pages. One of the many vague points is the udp port used by the Miredo client in relay mode. Is it 'random' or is it 3545? How do I find out what it is? Plus how do I set up my server so that the Miredo server and client relay start as part of the system boot? They do now work with the service command, but just running them from the command line starts the server. My digging so far has not given me these answers....

2 1

vncviewer via gateway option question
by Robert Moskowitz 15 Jul '08

15 Jul '08

the man page for vncviewer presents the -via gateway option to use ssh through a gateway. I understand if I want a secure vnc connection to server.foo.com I can use the command: vncviewer localhost -via server.foo.com But I have moved my SSHD services from port 22 to port n. So according to the man pages, I need an environment variable of VNC_VIA_CMD and override the default command with: /usr/bin/ssh -p 7722 -f -L "$L":"$H":"$R" "$G" sleep 20 where 7722 is the port for sshd. How do I set up this environment variable on my notebook. Would I modify my .bash_profile file, and is the format of the added line: VNC_VIA_CMD=/usr/bin/ssh -p 7722 -f -L "$L":"$H":"$R" "$G" sleep 20 ???

3 3

pci-x v2 detect on command line
by Tony Schreiner 15 Jul '08

15 Jul '08

Is there a way to tell from the OS whether the PCI-X bus is version 2 or not? Tony Schreiner

3 5

OT: anything in CentOS 5.2 that uses opendns.com when browsing web?
by Lanny Marcus 15 Jul '08

15 Jul '08

I believe this is completely OT, but I want to be positive. I have a fully up to date CentOS 5.2 box. During the past week, when surfing with Firefox (and today, while testing with Konqueror), frequently, especially when DNS is slow, I am seeing references to opendns.com At times, I end up on opendns.com web pages, instead of at the web site I'm trying to get to. My ISP, the phone company, claims this is not coming from their end and that they are not using opendns.com. I was told they have two (2) DNS servers. I haven't changed anything in my IPCop Firewall/Router box and my belief is that this is coming from my ISP or upstream from there. . If using opendns.com is something new in CentOS 5.2, please let me know. TIA.

15 86

CentOS-announce Digest, Vol 41, Issue 7
by centos-announce-request＠centos.org 15 Jul '08

15 Jul '08

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. CESA-2008:0562 Moderate CentOS 3 ia64 ruby - security update (Pasi Pirhonen) 2. CESA-2008:0561 Moderate CentOS 4 ia64 ruby - security update (Pasi Pirhonen) 3. CESA-2008:0581 Moderate CentOS 4 ia64 bluez-libs and bluez-utils - security update (Pasi Pirhonen) 4. CESA-2008:0562 Moderate CentOS 3 s390(x) ruby - security update (Pasi Pirhonen) 5. CESA-2008:0561 Moderate CentOS 4 s390(x) ruby - security update (Pasi Pirhonen) 6. CESA-2008:0561 Moderate CentOS 5 x86_64 ruby Update (Johnny Hughes) 7. CESA-2008:0581 Moderate CentOS 5 x86_64 bluez-utils Update (Johnny Hughes) 8. CESA-2008:0561 Moderate CentOS 5 i386 ruby Update (Johnny Hughes) 9. CESA-2008:0581 Moderate CentOS 5 i386 bluez-utils Update (Johnny Hughes) 10. CESA-2008:0581 Moderate CentOS 4 i386 bluez-utils Update (Johnny Hughes) 11. CESA-2008:0581 Moderate CentOS 4 x86_64 bluez-utils Update (Johnny Hughes) 12. CESA-2008:0561 Moderate CentOS 4 x86_64 ruby Update (Johnny Hughes) 13. CESA-2008:0561 Moderate CentOS 4 i386 ruby Update (Johnny Hughes) 14. CESA-2008:0562-01: Moderate CentOS 2 i386 ruby security update (John Newbigin) 15. CESA-2008:0562 Moderate CentOS 3 i386 ruby - security update (Tru Huynh) 16. CESA-2008:0562 Moderate CentOS 3 x86_64 ruby - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Mon, 14 Jul 2008 19:43:34 +0300 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2008:0562 Moderate CentOS 3 ia64 ruby - security update To: centos-announce(a)centos.org Message-ID: <20080714164334.GM31936(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2008:0562 https://rhn.redhat.com/errata/RHSA-2008-0562.html The following updated files have been uploaded and are currently syncing to the mirrors: ia64: updates/ia64/RPMS/irb-1.6.8-12.el3.ia64.rpm updates/ia64/RPMS/ruby-1.6.8-12.el3.ia64.rpm updates/ia64/RPMS/ruby-devel-1.6.8-12.el3.ia64.rpm updates/ia64/RPMS/ruby-docs-1.6.8-12.el3.ia64.rpm updates/ia64/RPMS/ruby-libs-1.6.8-12.el3.ia64.rpm updates/ia64/RPMS/ruby-mode-1.6.8-12.el3.ia64.rpm updates/ia64/RPMS/ruby-tcltk-1.6.8-12.el3.ia64.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

3 2

background process
by David Hláčik 15 Jul '08

15 Jul '08

Sorry for such lame question but .. When i am connected to server using SSH . How can i fetch process to background and close ssh session and not kill that process? And how can i later connect to server and fetch process from background to console? All years i have been using "screen" for this. Thanks in advance! David

6 5

Power management and remote X sessions
by Steve Bergman 15 Jul '08

15 Jul '08

I have about 50 CentOS 4.x/5.x stations running as thin clients. So Gnome is running on the remote machine and the station is merely acting as an X terminal. I would like to enable some power management. I think I can control the monitor's dpms features and timeouts in the xorg.conf on the stations. But if I want to have the stations themselves go into standby mode after a set amount of time, what would be the best way to accomplish that? Thanks for any info, Steve Bergman

1 0

sysctl setting reset
by Steven 15 Jul '08

15 Jul '08

Hello, I have found the sysctl setting to net.ipv4.netfilter.ip_conntrack_max value reset everyday, may I know is there a way to set it permanently? I have set it to 150000, but it reset to 65535 in few hours. The running Centos is version 4 and kernel version is 2.6.9-55.0.12.ELsmp. Do I need to reboot to have it set permanently? It seems that I need to run sysctl -p to re-read the /etc/sysctl.cnf. Thanks. - Steve

1 0

RE: [CentOS] Cleaning up smp kernels
by Bowie Bailey 15 Jul '08

15 Jul '08

Jim Perrin wrote: > On Mon, Jul 14, 2008 at 4:06 PM, Bowie Bailey <Bowie_Bailey(a)buc.com> > wrote: > > I have used the package-cleanup utility to remove old kernel > > packages, but I noticed that it only removes the 'kernel' and > > 'kernel-devel' packages. It does not touch 'kernel-smp', > > 'kernel-hugemem', etc. What is the recommended method of cleaning > > up these other kernel packages? Should I just 'yum remove' the ones > > I don't need? > > > > Some of my servers have a few piling up... > > > > http://linux.duke.edu/~skvidal/useful-scripts/kernel-prune.py > > this will generate a list of old kernel bits you don't need. You can > pipe it through rpm -e for cleanup. So what you are saying is that it is ok to simply 'rpm -e' or 'yum remove' unused kernel packages? -- Bowie

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