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MS Exchange to MBOX
by Joshua Gimer 15 Aug '07

15 Aug '07

We are planning on moving a large amount of Exchange mailboxes to UNIX mbox format. My question is, does anyone know of any projects out there or of any tools that can assist in this conversion? Thanks Josh

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NFS / DNS problem
by Simone 15 Aug '07

15 Aug '07

Hi all, Today we have had a strange problem that has taken down our website, we understand what happened but not why so I am hoping someone has seen this before. We have our web servers (web1 web2 web3 ..... web10) mounting an NFS share (/export/data) from server nfs1. On the web server side we use autofs in the format nfs-dedicated:/export/data where nfs-dedicated is an alias in our internal DNS servers pointing to server nfs1. We run a primary and a secondary DNS (bind) server ns0, ns1 authoritative for our zones and our webservers have them configured in /etc/resolv.conf Today we had to run some upgrade on the dns servers (bios firmwares etc) so we took down ns0 and with it our website went down. All the nfs shares disappeared from the web servers (the logs show requests to mount/unmount timing out), but at the same time on nfs1 the logs show requests (mount and unmount) coming from the web servers and no errors. As soon as ns0 is back up, all gets back to normal. Minutes later we take down ns1 for maintenance and it doesn't have any impact on the website. dig @ns0 nfs-web gives exactly the same results on ns0/1 Back to the office we try to reproduce the same scenario configuring iptables on web3 to block traffic to ns0 but the server (web3) keeps working fine reverting to ns1 for name resolution (as you would expect). Has anybody seen this happening before? Any comment/suggestion much appreciated. Thanks Simone

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dns propagation problem
by Mark Quitoriano 15 Aug '07

15 Aug '07

Im using centos 4.5 and bind 9.2.4-27.0.1.el4, im having a problem propagating updates on domains. when i update the main NS the secondary and tertiary doesn't update automatically. i need to delete the <domain>.zone file in the secondary and tertiary to get update from the main NS. I don't where's the problem i don't get any errors i just dont get the AXFR when the don't delete the file from the backup NS.

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COMPIZ Centos 4.5
by Adriano Frare 15 Aug '07

15 Aug '07

Dear Friends. Is there version COMPIZ (maybe RPM too) for CENTOS 4.5 ? Thanks Adriano Frare

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text installer used in Linux?
by Rogelio Bastardo 15 Aug '07

15 Aug '07

Can someone tell me the name of the text installer used in distros like Debian / Ubuntu? I'd like to create one upon first time boot for a CentOS-based virtual application I'm making. So, after someone boots up, I'd like to have a little GUI thing ask them questions and then put those variables in a file (or maybe use something like sed to edit other network config files).

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Forcing ifcfg-eth0 to use the same nic in multi nic machine
by Doug Coats 14 Aug '07

14 Aug '07

I am new to CentOS (coming from Fedora) and I really like it! I am having difficulty getting one of my machines to boot and assign the same designation of eth0 and eth1 to the same nics consistantly. I have an MSI motherboard with 2 nics on the board. Strangely enough both nics report the same MAC address. This is not an issue since I use the computer to route between two different subnets so they don't see each other on the network. The problem comes when I reboot and they race against each other to see which one will get to be eth0. If they switch my routing dies and I loose access with out rebooting and hoping they switch back or switching the actual cables. I have googled and searched my networking resources but all of the fixes that I have found focus on using the MAC address to solve the problem but in my case they are the same. The only difference is that they use different drivers. One is a Realtek and other is a Marvell. I have turned off Kudzu or they reconfigured every time a booted the machine. It only happens every once in a while but I need it to be consistent. Any suggestions or pushes in the right direction would be most appreciated. Doug Coats

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Re: [CentOS] Re: Automount configuration problem
by Lanny Marcus 14 Aug '07

14 Aug '07

On 13 August 2007, Lanny Marcus <mailing-lists(a)computer2.com> wrote: <snip> > mount /dev/cdrom /media I saw the above line in the updated Release Notes from Upstream yesterday and I was able to mount the FC6 Install DVD, as root from a terminal, and then install the kdeedu package from that DVD, without problems yesterday. Then, last night, I tried to view the contents of the CentOS 5.0 Install DVD and no luck. This morning, I got the following results, with the FC6 Install DVD on that box: (1) mount - No medium found (2) rebooted into Win ME and there was no problem (3) took out the DVD, rebooted to CentOS 5.0, inserted the FC6 DVD into drive. # mount /dev/cdrom /media mount: block device /dev/cdrom is write protected, mounting read only and I was able to view everything on the DVD, without any problem. I'd begun to think possibly there was a problem on the Teac DVD drive and that I should look for TEAC DVD Diagnostics, but it seems to work properly. Any ideas? TIA, Lanny

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Using a program
by Ioannis Vranos 14 Aug '07

14 Aug '07

OS: CentOS 5 x86. There is a program I am using which requires a start up service running. The service runs in Runlevels 3,4,5. When I am using the program as a root it works fine. When I am using it as a user it produces an error. If I do as a root, /etc/init.d/program start, then I can use it as a simple user. I have emailed the company that makes it and had no response. Any idea on how to fix this?

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hw raid 10 with 4 disc, recomended partitiontable
by kai 14 Aug '07

14 Aug '07

I am familiar with centos and this forum, and have some rhel / centos questions. Therefore I'm asking the question here I am about to install rhel4.5 on a hp dl380 with 4 disc's. The standard rhel installation installers all in one partition? Will there be any advantage of splitting the file system up? What would be a good recommended partition table for a server running scripts handling big amount of transactions? Normally i would do something like this, but i need to ask the question since I haven't installed on a production machine before /boot /opt /usr /var /tmp /home An other thing, I haven't installed rhel before, only centos and notice a difference in that yum is not a part of rhel, and later figuring out that no updates are possible since I installed without the graphics's. Are there other significant differences between CentOS and RHEL?

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Re: [CentOS] Re: Postfix smtp freezing
by Lanny Marcus 14 Aug '07

14 Aug '07

On 09 August 2007, Ken Price <kprice(a)nowyouknow.net> wrote: <snip> > I'll give my two cents and retire for the evening. I've tried > multiple times from 3 different locations (Atlanta & Seattle) to > connect to MAIL.MEDVOICE.COM on port 25 ... which I'm assuming is your > problem server. I get inconsistent results. Half the time I get a > near immediate (<2 seconds) 220 prompt. The rest of the time I get > > 10 seconds or timeouts. > I tried his SMTP this morning and it was either OK or timeout. > 3) Who does your DNS? Looks like Qwest is authoritative for your > domain, do you use their recursive DNS servers too? If yes, this > could be a problem. If you don't already, RUN YOUR OWN RECURSIVE DNS > for your server!! > Bandwidth and DNS are the likely culprits. Possibly someone who knows a *lot* more about DNS management than I do can look at his DNS management? I have the ttl (IN) for "A" and "PTR" at 3600s for my web site. Faster, if one changes IP address. He has those ttl at 100000s. Possibly he could use the IP address more, in DNS management? I've had the SMTP service die, over the past 68 months, approximately 10-15 times, on a RH server (shared hosting). Never daily. Services and processes sometimes die mysteriously, but probably not on a daily basis. In the WHOIS record: > Name Server: AUTHNS3.STTL.QWEST.NET > Name Server: AUTHNS1.MPLS.QWEST.NET > Name Server: AUTHNS2.DNVR.QWEST.NET Possibly those should be in different order? (I have mine, NS1, NS2, NS3, NS4 from top to bottom)

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