Discuss

discuss@lists.centos.org

34753 discussions

Downgrade samba?
by Jason Pyeron 11 Sep '07

11 Sep '07

After reading http://lists.samba.org/archive/samba/2003-November/001828.html what would the best approach for downgrading samba-3.0.10-1.4E.12.2 to 2.7 on centos4, then later upgrading back to current? -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Sr. Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, purge the message from your system and notify the sender immediately. Any other use of the email by you is prohibited.

4 3

Performance of CentOS as a NAT gateway
by Bart Schaefer 11 Sep '07

11 Sep '07

We have a single 3GHz P4 box w/2GB RAM running CentOS 3.8, acting as a gateway, which serves multiple IP address, having one virtual interface for each IP, e.g., eth0:1, eth0:2, etc. These interfaces/IPs are on the public internet. Each of these IP addresses is the NAT address for a different small LAN. All of these LANs are connected through a single Linksys 100Mb switch, to eth1 on the gateway. Thus, in case it's not obvious from that description, traffic from LAN X travels through through the switch to eth1 on the gateway, where iptables translates it to the IP address of eth0:X and thence out to the net. The gateway is totally idle except for handling these NATs; no other processes except the usual OS bookkeeping. All NIC and switch hardware involved is 100Mb. This all works, but we're experiencing network congestion somewhere. The LANs appear to become saturated when only about 10Mb of total traffic is passing through the public IPs. That is, we seem to be losing almost 90% of our capacity somewhere in the translation. Before we attempt to sweep this under the rug by using Gb NICs/switches for the LANs, we'd like to understand what's going on. I can't find any recent statistics for Linux NAT performance, but the older stuff I can find (e.g. 50k packets/sec for a P3-450Mhz) seems to indicate that the gateway should easily be up to the task of handling the NAT traffic. Am I wrong about this? Is there any way to diagnose whether the NAT is the bottleneck? Would we benefit from upgrading to a newer CentOS (2.6 kernel as opposed to 2.4)? Or is it more likely to be the switch, in which case what would be a recommended replacement for the Linksys? I can provide more details in private mail if necessary. Thanks in advance for any ideas.

12 36

Boot problem with CENTOS 5
by chuck 11 Sep '07

11 Sep '07

I had everything up and running. All of the help thus far was excellent. Thanks! I then did the updates that the OS prompted to do and selected reboot now once they completed. Now when the server reboots after the bios info I get the following when the OS starts to initialize: GRUB And it hangs there. How do I clear this? FIx this? Thanks in advance, Chuck

4 4

rpm spec files for ruby
by James B. Byrne 11 Sep '07

11 Sep '07

I am trying to package ruby-1.8.6 for CentOS-4.5 and I would like to take a look at the spec files used for ruby-1.8.1 that ships with CentOS. Is there any place that I can see these or could someone do me the kindness of sending them to me? I am also confused as to how one breaks out the component parts of a build into separate rpm packages. The source distribution from ruby-lang.org seemingly permits only three install options; all, no-docs and docs-only. How and where does one refactor the build scripts to create separate rpms for ruby, ruby-libs, ruby-devel, ruby-docs, rdoc, irb, ri, and ruby-tcltk? I would appreciate greatly any guidance here. I have zero experience with creating rpm packages, but I ran across a reference to checkinstall in a reply to one of my queries on ruby-forum and have decided to have a go at putting an rpm together, for my own purposes if it proves beyond my capability to do so for the community. Sincerely, -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

4 7

Re: [CentOS] Network Connection Card Problem?
by Jun Salen 11 Sep '07

11 Sep '07

>Hi List, > >My Mail/Proxy server has from time to time refuse to >accept accept network connection. If I restart the >network service, the service will again start to >accept connection but after some time will again >refuse connection. I use CentOS 4.5 with Squid, >DansGuardian, Postfix. Please can someone point me >what are the possible cause of this. Thank you. In addition to my posting above. When I make ping to other machine from the server, the server will again restore and accept connection. This is weird, so my temporary solution is to let the server continually ping other machine. Please help. Thanks again. junji aisalen.wordpress.com Linux Registered User #253162 Send instant messages to your online friends http://uk.messenger.yahoo.com

2 1

Network Connection Card Problem?
by Jun Salen 11 Sep '07

11 Sep '07

Hi List, My Mail/Proxy server has from time to time refuse to accept accept network connection. If I restart the network service, the service will again start to accept connection but after some time will again refuse connection. I use CentOS 4.5 with Squid, DansGuardian, Postfix. Please can someone point me what are the possible cause of this. Thank you. junji aisalen.wordpress.com Linux Registered User #253162 Send instant messages to your online friends http://uk.messenger.yahoo.com

1 0

Nautilus won't start
by Kenneth Porter 10 Sep '07

10 Sep '07

I've been running CentOS 5 since release on a couple of servers with few problems. Last night I tried it as a workstation for the first time. It booted up fine and I could log into X. I then ran pup to install all available updates and shut down afterwards to load the new kernel. (I use yum on the servers.) This morning I start up on the new kernel and after logging in at the Gnome prompt, I get a message that Nautilus can't start. I'm not an X guru, being mostly a server driver over ssh. What's the best way to debug this? (I have lots of experience debugging, just not with X.)

2 2

Re: [CentOS] How to upgrade WBEL4 to CentOS4?
by tdukes＠sc.rr.com 10 Sep '07

10 Sep '07

---- Phil Schaffner <Philip.R.Schaffner(a)NASA.gov> wrote: > On Sat, 2007-09-08 at 01:03 -0400, Eric B. wrote: > > Hi, > > > > I've got a couple of servers that are running WBEL4 that I would like to > > upgrade to CentOS4. I noticed that there is a FAQ which explains how to > > upgrade WBEL3 to CentOS3, but haven't found anything similar for WBEL4. > > > > Are the instructions for the WBEL3 upgrade the same for WBEL4? Should I be > > doing something else instead? > > > > Any help would be greatly appreciated. I did this using those instructions some time back. Just substitute WBEL3 for WBEL4. The paths for the rpms were different is about the only thing if I remember correctly was what I had to change.

1 0

is there an apache limit on submit size for centos 4 and 5
by Jerry Geis 10 Sep '07

10 Sep '07

Is there a limit to the size of the form that apache will accept? I have a small import utility (not php - just straight cgi and C program). It will import smaller files. 350 Meg is the largest I successfully did. But a 6.5G file it will not do. Seems like the form does even submit. Is there a config option in apache that doesnt even accept it? I looked at /var/log/httpd/ error and access and nothing is there. Any ideas? Jerry

1 0

package manager
by Dan Dansereau 10 Sep '07

10 Sep '07

How do I force the package manager to re-install a package? Such as Development - > Development Tools -> G77 Or the entire Development tools package? The G77 Is missing - and when I ask it to install - it states that is already installed. Thanks Dan A. Dansereau

3 2

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