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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.?

4 6

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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SME on CentOS, telnet and MySQL
by Michael 24 Jun '08

24 Jun '08

After failing to install on two different machines that were running Windows, I realized that one machine had a bad hard-drive, and the other bad memory. So I've collected the good parts into one machine and installed CentOS with SME. This was the fastest install of Linux I have every seen, 15 minutes done, configured, and running, web and email server. It is a very secure config, no GUI -- just a server. One problem: MySQL and Telnet can't be accessed remotely, ports not open, allow/deny files, something. I've searched the internet and hacked around for hours, can't get these services to work remotely. Anyone here have experience with the SME/e-smith admin tools? By default SME doesn't install Telnet on port 23, only ssh on port 22. So I ran a yum install for telnet, manually started it. I get a response from port 23, but connection refused. Mysql does come installed with SME, however local connections only. I can run mysql client on the command line on the SME.CentOS server, queries work fine, but not remotely. I am using Windows Vista as a client workstation, Programmer Studio (Whisper Technology) that requires a generic telnet server, and the freeware version of Toad to connect to the MySQL server. Any help to weaken the security on SME to allow remote telnet and MySQL connections will be very much appreciated! -- Michael Anderson, J3k Solutions Sr.Systems Programmer/Analyst 832.515.3868

4 3

Upgrading my local repo to 5.2
by Robert Moskowitz 24 Jun '08

24 Jun '08

This will be the first version change with my local repo so I want to check the steps out. I have a /Centos/5.1 directory with all the contents of the ISO CDs. I have a /Centos/5 directory with a symbolic link to the 5.1 directory. I ASSUME that I will create a /Centos/5.2 directory and drop the contents of the ISO images there. Then change the symbolic link to the 5.2 directory. After I test out both installs and upgrades from this new directory I can trash the old 5.1 directory. Do I have it right?

2 1

Why CentOS 5.2 is so large?
by Michael Liang 24 Jun '08

24 Jun '08

Hi, folks. I have download the DVD image of CentOS 5.2. Comparing with the DVD image of Upstream OS Provider, I got a surprise: The size of the DVD image of Upstream OS Provider is just 2.87 GB(i386), but the size of the DVD image of CentOS 5.2(i386) is so large that is 3.74 GB! I kown that CentOS's developers did very excellent work on how to make the Upstream OS more availability and add many good free software on the CentOS. But where can I got the change or add list of CentOS? and why the size change is so large? I think it is very useful for my farther employ of CentOS. Thanks! (Yes, I can read the ReleaseNotes, but it is still can not disabuse me, the secsion of "5.6. Packages added by CentOS that are not included upstream" is so little.)

5 8

backup question
by Gergely Buday 24 Jun '08

24 Jun '08

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? - Gergely

8 11

Bonding question - active-backup
by Tom Brown 24 Jun '08

24 Jun '08

Hi I have bonding working and i can failover between active (eth0) and backup (eth1) without issue, however is there a way to automatically fail back to eth0 when this link once again becomes available? I understand this may be undesirable due to flapping etc but i just wonder if its possible. thanks

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