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DNS query
by fabian dacunha 24 Jun '08

24 Jun '08

Dear All, i have the following setup CentOS 5 server running as a primary DNS server for a long time and is working perfectly fine the server is on public IP and we have abt 5 zones apart from the reverse n local zone now our sister company have recently setup their own DNS and we are supposed to use it. earlier our cleints were using a host file now on my master dns server in /etc/named.conf i created a new zone with the following statement zone "cse.net.kw" IN { type slave; masters { 172.31.1.240; }; file "cse.db"; allow-query { any; }; // the default allow-transfer { none; }; }; and when i reload the dns server the file cse.db is not created also in /var/log/messages i c the following Jun 24 18:17:41 kmdns1 named[1771]: loading configuration from '/etc/named.conf' Jun 24 18:17:41 kmdns1 named[1771]: zone cse.net.kw/IN: refresh: non-authoritative answer from master 172.31.1.240#53 (source 0.0.0.0#0) actually i would want all the cleints to query the 172.31.1.240 DNS server without adding this IP in their configurtion . all the cleint hav our master dns server in their own setup so actually query 172.31.1.240 DNS server through our DNS apprecite your help or cd i have contitional forwarding something like when a client queries the 172.31.1.240 our master DNS jus forwards the queries to 172.31.1.240 instead of sending it out on the internet since 172.31.1.0 network is connected directly and is a part of out intranet really wd apprecite your help and ideas with examples regards fabian -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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AM/FM tuner for centos 4 or 5?
by Jason Pyeron 24 Jun '08

24 Jun '08

Looking for a radio tuner for my audio server. Needs to do AM. Any hardware reccomendations? -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal 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.

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CentOS 5 based distribution
by A.B. 24 Jun '08

24 Jun '08

I've been trying to create a Linux distribution based on CentOS 5, similar to (actually, exactly like) how CentOS is based on RHEL. I have been unable to find any information about this. Most of what I find are tutorials and instructions on using Kickstart. Sometimes I've found allusions to doing this, but nothing that gives all the instructions necessary to modify Anaconda (or other files) sufficiently. I have found an excellent walkthrough ( http://wings.buffalo.edu/computing/ublinux/) on creating a distribution based on RHEL 4. While following the instructions I have found that not everything is in exactly the same place when using CentOS 5, but the descriptions are close enough that I have been able to figure it out and create a mostly "rebranded" install DVD. One thing that the above walkthrough does not explain is how to change all the text and images (it points to most of the images) and the default "packages". By that I mean the screen where the installer asks what additional tasks I would like the system to include support for: i.e. Desktop - Gnome, Server, Server - GUI, etc... I have been unable to find where this information, and some of the other text the installer uses (for example, "Searching for CentOS installations"), is stored. I've greped the entire DVD (including the expanded stage2.img file), but cannot find this text anywhere. Is the information stored in a compiled executable? If so, which executable will I need to recompile? Thanks.

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Re: [CentOS] Upgrade mail server to new machine
by Glenn 24 Jun '08

24 Jun '08

At 12:56 PM 6/24/2008, you wrote: >I have an old RHEL3 box that I am upgrading to CentOS5. I picked up a >new Dell Poweredge R200 to use for that. > >Is there an easy way to copy all the user accounts and existing mail >from the old server to the new one? > >Thanks. > >-- >-=/>Thom I have used Webmin/Virtualmin to backup and restore users/groups/virtualhosts and to move across servers for mail. http://www.webmin.com Cheers, Glenn

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recommendations for copying large filesystems
by Mag Gam 24 Jun '08

24 Jun '08

I need to copy over 100TB of data from one server to another via network. What is the best option to do this? I am planning to use rsync but is there a better tool or better way of doing this? For example, I plan on doing rsync -azv /largefs /targetfs /targetfs is a NFS mounted filesystem. Any thoughts? TIA

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Trash under sudo
by centos＠911networks.com 24 Jun '08

24 Jun '08

Hi, Where do files get copied when deleting files under sudo? I have some files in my trash can that I can clean because they where deleted with a sudo. -- Thanks http://www.911networks.com When the network has to work

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5.0, 5.1, 5.2 history/diff?
by Scott R. Ehrlich 24 Jun '08

24 Jun '08

Is there a detailed history/diff of what 5.1 adds/removes/changes from 5.0, and the same for 5.2 from 5.1 and 5.0? I checked around the centos.org but couldn't obviously find this. Thanks. Scott

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Re: [CentOS-announce] Release for CentOS-5.2 i386 and x86_64
by John R Pierce 24 Jun '08

24 Jun '08

Karanbir Singh wrote: > > We are pleased to announce the immediate availability of CentOS-5.2 > for the i386 and x86_64 Architectures. and let the fun begin... $ rsync -avH --delete --exclude=ia64 --exclude=s390\* --exclude=alpha \ mirrors.kernel.org::mirrors/centos /zdata/mirror rsync: read error: Connection reset by peer (131) rsync error: error in rsync protocol data stream (code 12) at io.c(614) [receiver=2.6.8] :-/

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centos 5.2 for real this time
by Donald Buchan 24 Jun '08

24 Jun '08

I did a yum update last night at about 23h15 EDT (-4). No upgrade. I just did a yum update this morning at about 08h45 (-4). for my system there's about 348 megs of updates. Now all I have to do is figure out how to remove OO.o 2.0.whatever which is being upgraded to 2.3.whatever. I'm using 2.4.1 on my 4.6 boxes (have always been using the latest OO.o on them since installation a couple of years ago.) Any ideas on how to completely remove the OO.o references for Yum, after having tried to do rpm -Uvh *.rpm, after trying again and doing a yum cleanup, etc. etc.?

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backup question
by James B. Byrne 24 Jun '08

24 Jun '08

on: Sun Jun 22 08:00:34 UTC 2008, Gergely Buday gbuday at gmail.com wrote: > Dear CentOs users, > > I have a centos server with nothing important at the moment, but I > would like to install some web-based project management tool (trac for > the curious) that would contain important data. And, as my network is > growing the configuration of the server is becoming complex. I would > like to have a proper backup so that I can restore the whole system > easily, should any problem occur. What do you recommend? > > I'm not an expert on this, so my first idea is that I could do a per > application backup and create a tar file of the /etc. The latter > especially could be too naive. And, a push-the-button method that > handles all in once, not depending on the app number would be much > better. > > Another thing: how I could do this to be safe across a centos upgrade? I have recently moved from Trac to Redmine for project management (and I strongly recommend that you consider this as an alternative to Trac, it is far more powerful to use and much easier to set up) but I had/have exactly the same problems that you are facing. The difficulty is that Trac has a DBMS backend, usually MySQl but in my case PostgreSQl. This complicates the issue since it is not enough to simply tar up the application site. What I ended up doing was building a hot site spare server to accommodate all of these types of applications (Trac project management, subversion repositories, drupal user cms sites, imapd user mailboxes, avantfax fax archives). Then, for applications that employed a database backend, I setup regular cron jobs to dump the backend databases into a ./dbdump directory that I added to the root of each site's file system. I added an rsync command to the end of the dump command to then move the entire site to the backup box at the end of the dump. On the backup machine I added a cron job to reload the database from the dump. This entails some background work to set up. You must initialize and configure the appropriate DBMS on the backup server with the requisite databases and database owners. You must ensure that the application's users and groups are properly replicated there. You may need to install and configure the application itself. You may need to configure apache if the application uses a web frontend, like Trac. You need to setup SSL host to host root authentication for rsync. And there are no doubt several other little things that need to be accommodated but that I no doubt have forgotten. However, what this gives you is a hot site backup that a simple change to DNS can enable. -- *** 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

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