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Help with sendmail ( or Iptables ... or DNS)
by Departamento de Informatica 06 Oct '06

06 Oct '06

Hi, i have a CentOS 4.4 running sendmail, with two network interfaces (eth0 -> Internet , and eth1 Local Network), from the terminal (SSH) i do telnet 127.0.0.1 25 and it connects to sendmail (i think so), but from another server (external, and so from the same SSH terminal) i try to connect to the Internet IP telnet 146.77.220.236 25 Trying 146.77.220.236... telnet: connect to address 164.77.228.236: Connection refused telnet: Unable to connect to remote host: Connection refused so i was thinking "it could be the fu...ing IPTABLES" from terminal execute iptables -L| grep smtp and the result is: ACCEPT tcp -- anywhere anywhere tcp dpt:smtp so , if the sendmail service is up, what could be happen??

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lowmem_reserve_ratio?
by Steve Bergman 06 Oct '06

06 Oct '06

I have moved from the CentOS 4.4 kernel to a 2.6.16.29 kernel.org kernel due to some vm problems I was having. All has gone well except that my free memory now sits at 150MB. It does not like to go above or below that. Basically, 150MB of the system's memory is wasted. Andi Kleen suggested that I try tuning /proc/sys/vm/lowmem_reserve_ratio. The problem is that lowmem_reserve_ratio appears to be undocumented. Does anyone here happen to know how it works? The most I've been able to gather is that it sets the ratio of dirty to free pages for each of the memory zones. The default on this server is: 256 256 32 Increasing the third number of seems to help, but I would really like to understand what it is that I am doing. Thanks for any assistance, Steve Bergman

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HTTP authentication/authorisation for Apache & AD.
by Plant, Dean 06 Oct '06

06 Oct '06

I am looking into the best way to integrate active directory user authentication and authorisation in to Apache. So far I have a working LDAP solution that requires the username/password to be entered and a Kerberos setup that is transparent to the user but with no authorisation. Searching the net seems to only find commercial offerings which offer true password less integration between AD & Apache. Is there a open source or inexpensive way to achieve what I want? Thanks Dean

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RE: [CentOS] virtual host on latest centos 4.4
by Mark Fitzsimmons 06 Oct '06

06 Oct '06

Resolved. Wow I can't believe it, I spent hours on that! I think the fact that the default site used the first virtual host was spinning me out. I've rebooted the server and also added another vhost and all is good. The second vhost is fine. FYI my vhost look like this: ------------ NameVirtualHost 192.168.1.250 <VirtualHost 192.168.1.250> suPHP_UserGroup cremaster users ServerAdmin support(a)xigen.co.uk ServerName www.cre.co.uk ServerAlias cre.co.uk DocumentRoot /secure/c/cre.co.uk Alias /logs /webstats/c/cre.co.uk/webalizer </VirtualHost> <VirtualHost 192.168.1.250> suPHP_UserGroup cremaster2 users ServerAdmin support(a)xigen.co.uk ServerName www.cre2.co.uk ServerAlias cre2.co.uk DocumentRoot /secure/c/cre2.co.uk Alias /logs /webstats/c/cre2.co.uk/webalizer </VirtualHost> ------------- Thanks all for your Help, I hope I can help someone out later sometime. Mark.

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ssl vulns
by Tom Brown 06 Oct '06

06 Oct '06

does anyone know if this applies to CentOS 3 or 4 latest update? http://www.openssl.org/news/vulnerabilities.html

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virtual host on latest centos 4.4
by Mark Fitzsimmons 06 Oct '06

06 Oct '06

Good morning All, I have a slight issue with apache virtual hosts not working on my newly installed CentOS (4.4). I am very new to Linux, however I have experience with apache etc on 'w1nd0ws'. I've been round and round in the apache conf file and to no avail. Basically if I setup a virtual host the default then looks at it. Also, if I setup multiple virtual hosts they all look at the first virtual host. I'm running the machine inside my local network as a staging server for web design. I then set my HOSTS file on my PC to the ip of the server and then the www.domain.co.uk: Eg: 192.168.1.250 www.testsiteonvirtualhost.co.uk This is what I do on my other apache test server (not CentOS). I assume this should work?? Is there anything other than virtual hosts that would need setting up?? Thanks in advance. Mark.

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RE: [CentOS] virtual host on latest centos 4.4
by Mark Fitzsimmons 06 Oct '06

06 Oct '06

He he.. yes, my Windows background does steer me to GUI interfaces. I have added rpmforge to YUM so I could install webmin to help me out. :-)) I'll try 'system-config-httpd' thanks. -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of DamianS Sent: 06 October 2006 10:09 To: CentOS mailing list Subject: Re: [CentOS] virtual host on latest centos 4.4 Coming from Windows, you are probably more used to administering things from a GUI, rather than a CLI. Have you tried using system-config-httpd yet? You should find this _very_ easy to setup virtual hosts with. _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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RE: [CentOS] Calling All FS Fanatics
by Bowie Bailey 06 Oct '06

06 Oct '06

Kirk Bocek wrote: > Peter Kjellström wrote: > > I use XFS on Centos-4 here with 9500-S and 9550-SX. The load is > > quite heavy (~30 climate modelling people) and the volume not tiny > > (~40 TiB). This system works fine and I have no problems sleeping > > at night. But then again, if you want data security you'll have to > > run backups anyway. Any filesystem can die. > > Oh, yea, backups! :) > > Heck, 30 users and 40 tibibytes of data is a pretty good stress test. > How long have you been running XFS in this setup? And how do you backup that much data? -- Bowie

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VPN Server Recomendations
by Shawn Everett 06 Oct '06

06 Oct '06

Hi Guys, I'm looking for a VPN solution that will run on CentOS. I've used PopTop with success but some clients have problems at hotels and other firewalled locations. If anyone can suggest something that works well with MS 2000/XP, doesn't require too much tweaking on the client side and is fairly resiliant to various firewall blocking, I'd be interested in hearing about it. Shawn

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(UK) academic users please vote for CentOS to be mirrored at mirror.ac.uk
by Lance Davis 05 Oct '06

05 Oct '06

As per the subject :- http://www.mirror.ac.uk/help/wishlist/ Regards Lance -- uklinux.net - The ISP of choice for the discerning Linux user.

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