similar to: Sendmail - block mail based on recipient address?

What am I doing wrong here? I need to be able to write to /var/cvs. This used to work before I moved these groups into an LDAP directory instead of /etc/group: [scarolan at watcher:/var/cvs]$ touch test.txt touch: cannot touch `test.txt': Permission denied [scarolan at watcher:/var/cvs]$ ls -ld drwxrwsr-x 4 cvs cvsgrp 4096 May 18 2008 . [scarolan at watcher:/var/cvs]$ id scarolan

Greetings, I'm refining a CentOs configuration installation, now just over one month old running on a colocated production server. Previously, we ran a version of Fedora for over seven years. Specifically, I'm reviewing our sendmail configuration, both with respect to authentication and port usage. Previously, we had the following line in the sendmail.mc line:

I'm up for a cell phone contract renewal and am considering upgrading my handset. I looked at some devices at my local AT&T store but nothing really jumped out at me. I'm particularly interested in a cell phone that has a reliable ssh client, with ssh-agent and public key authentication abilities. Those of you who administer systems remotely, what mobile ssh client do you recommend?

I have a server that is undergoing some patching soon and would like to make note of any files that have changed after the patching is complete. Can you recommend a tool that uses md5sum snapshots to do a quick before and after test, showing anything that's changed on a particular file system?

I really like gnu screen and use it everyday but there's one thing that is a bit inconvenient, and that's the odd line wrapping and terminal size issues that seem to pop up. The problem crops up when I type or paste a really long command, and then go back and try to edit it; the text starts to wrap over itself and you have no idea what you are editing. Any fixes for this?

I have a perl script which runs from a cron job. How would you limit the amount of RAM that this script is allowed to consume? Is there a ulimit setting that will accomplish this? If so does ulimit have to be run each time the script is run, or is there a way to set it permanently?

I would like to block all DNS queries that come from one particular ip address. I used TCPdump to verify that the queries were in fact, coming from this IP: [scarolan at server:~]$ sudo tcpdump -n udp port 53 and src 10.100.1.1 tcpdump: listening on eth0 11:12:17.162100 10.100.1.1.19233 > 10.100.1.61.domain: 14270+ A? server.domain.com. (32) (DF) Could someone help with the proper syntax

Is there a flag for the df command to get the total disk space used on all filesystems as one number? I have a server with a lot of mounted shares. I'm looking for a simple way to measure rate of data growth across all shares as one total value.

We have an issue with some customers who refuse to accept ICMP traffic to their mail servers. It seems that they have put Mordac, preventer of information services in charge of their firewall policy (http://en.wikipedia.org/wiki/List_of_minor_characters_in_Dilbert#Mordac). My mail logs are showing that customers who specifically disallow ICMP traffic have many "Connection Reset"

Hi list, I'm trying to create an asterisk 1.8 rpm with SRTP. I found mention of a libsrtp rpm, <http://qutecom.ipex.cz/RPMS/srtp-1.4.4-1.i386.rpm > in these instructions, <http://www.voip-info.org/wiki/view/Asterisk+SRTP> but it is unreachable (by me, anyway). The libSRTP source is here, <http://srtp.sourceforge.net/download.html>. Has this already been packaged for

I'm attempting to block access to port 53 from internet hosts for an internal server. This device is behind a gateway router so all traffic appears to come from source ip 10.100.1.1. Here are my (non-working) iptables rules: -A RH-Firewall-1-INPUT -s 10.100.1.1 -m tcp -p tcp --dport 53 -j REJECT -A RH-Firewall-1-INPUT -s 10.100.1.1 -m udp -p udp --dport 53 -j REJECT Further down the

I'm having trouble getting the GDM login screen to show up when I connect from a remote host. I'm using Xming on the local Windows machine, but every time I connect to the remote server all I get is a gray window with the X cursor. I have "Enable=true" in the [xdmcp] section of /etc/gdm/custom.conf. IPtables is disabled. I've googled around and read through the xdmcp page

We have a directory full of installation and configuration scripts that are updated on a fairly regular basis. I would like to implement some sort of version control for these files. I have used SVN and CVS in the past, but I thought I'd ask if anyone can recommend a simple, easy-to-use tool that would be better than cvs or subversion for this fairly simple setup.

I have a large (1.5TB) partition with millions of files on it. e2fsck has been running nearly 12 hours and is still on "Checking directory structure". Any tips for speeding this along? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100831/8653d551/attachment-0002.html>

This is kind of odd. [scarolan at host:~]$ cat loremipsum.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia

I have a string, "2012_10_16"; let's call this $YESTERDAY How can I rsync a file tree from a remote machine to the local one, including *only* filenames that contain the matching string? I've read the man page and googled around but can't seem to get the syntax right. I either end up syncing all the files, or none of them. Here's how the code looks now (I will remove

Is there an easy way to configure sendmail to only send mail to addresses in one particular domain?

Can anyone point out reasons why it might be a bad idea to put this sort of line in your /etc/hosts file, eg, pointing the FQDN at the loopback address? 127.0.0.1 hostname.domain.com hostname localhost localhost.localdomain

Some threads just go on too long. Personally I think a troll has hijacked the main centos list again and is inducing food fight behaviours while that troll perfectly 'innocently' asserting that it is just respoding to all email. see: http://video.google.com/videoplay?docid=-4216011961522818645 for a discussion of the problem of 'capture' in FOSS projects. But if one loses

Dear All, i have installed Centos 4.5 and is working perfectly fine me actually a novice and is my first time with centos though have experince with redhat i do have a few queries.. 1) i dont see /usr/src/redhat/BUILD and the other 4 directories.. namely RPMS, SOURCES, SPECS, SRPMS so basically how do i install /src.rpm files i have installed sendmail ver 13 with mailscanner n spammassassin n