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Hardware serial number access from (a) command(s)
by MHR 29 Jul '08

29 Jul '08

Over the weekend, I had to make a technical support call on one of my DVD burners, and at one point the recorded message mentioned I should have my serial number handy. I thought there was a way to read that from at least one piece of software on the system, but I couldn't remember one and man -k on a number of subjects was unrevealing. Can someone enlighten me (us)? Thanks. mhr

11 34

Centos 5.0 package updater asking me to update more than I installed
by Mark Walker 29 Jul '08

29 Jul '08

Is this the standard behavior? Is there a way to only update the packages I installed without deselecting the ones I don't want? Thanks.

6 7

Migrating RHEL 3 to Centos 5.2 - has Adaptec 2400a RAID
by Ed Westphal 29 Jul '08

29 Jul '08

Greetings all. I'm new to the mailing list. Hope to get to know many of you. I'll jump right in with a recent project. I have a machine with RHEL WS 3 - Taroon; plus dual boot to Win 2000 Pro. The RAID card is Adaptec's 2400A w/128 megs cache, running RAID 10 on 4 WD's. I want to migrate to 5.2 Centos and wipe the NTFS partition. I have the 5.2 Centos DVD. Anyone see any problems, special preparation needed, whatever, to accomplish the migration? The RAID uses dpt_i2o drivers. The NVidia card can get drivers from their website, if need be to support full functionality. Please advise with any cautions, considerations, you may care to give. Thanks in advance. Ed Westphal

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nss_ldap 5.2 update question
by David Halik 29 Jul '08

29 Jul '08

Hi all, I was just wondering when this update will trickle down into the Centos repo: http://rhn.redhat.com/errata/RHBA-2008-0611.html Obviously, it just came out yesterday, so I'm not expecting it to suddenly appear. ;) Just curious what the turn around time usually is for RHEL bug fixes that get released and when we should expect it. As a side note, does anyone know if there is a way to get a hold of an update like this without having support access to the RHN? I'm guessing I just have to wait for a Centos release. Thanks! -Dave -- ================================ David Halik System Administrator OIT-CSS Rutgers University dhalik(a)jla.rutgers.edu ================================

4 7

securing rsync over ssh
by Kai Schaetzl 29 Jul '08

29 Jul '08

I want to secure some remote rsyncs over ssh by using the command= option in .authorized_keys. As I understand I can use only the full command there, as it is not a list of "allowed commands" but the command that will be executed when logging in with this key. Now, I'm running several rsync commands on individual directories in the root, not just one command. I do that to pull different exclude lists in. I want to exclude nothing in some directories and a few different things in other directories. rsyncing per /rooted directory seems to be the cleanest and easiest way. All other combinations of complicated exclude/include lists may have unexpected results. I thought about putting the remote command in a shell script. However, I think this won't work as each rsync on the remote side will be executed with the first rsync command in the script on the local side. Is there a solution (besides using several keys or so)? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

3 4

Does sprof work on CentOS5?
by Hywel Richards 29 Jul '08

29 Jul '08

No matter how I try, I can't seem to get a library profile from sprof on CentOS5. Does anyone know if sprof actually works on CentOS5? I'd be very interested to hear if anyone is using it successfully. At the moment I'm trying something like this to get the dump: LD_LIBRARY_PATH=. LD_PROFILE=libmy.so ./mymain where libmy.so is the library I want to profile, and mymain is the executable which links to it. This appears to create the profile dump successfully (which appears at /var/tmp/libmy.so.profile), but when I try to get a readable profile using sprof it fails: $ sprof libmy.so /var/tmp/libmy.so.profile sprof: failed to load shared object `libmy.so' I have a CentOS4 machine here, and doing the above on that works fine, but I've had no luck at all on CentOS5 (all currently up-to-date). Can anyone help? (Please!)

4 9

Samba, SELinux and system created directories
by Mike 29 Jul '08

29 Jul '08

Does anybody know what 'setsebool -P samba_export_all_rw on' is actually supposed to do? I'm trying to share /tmp via samba and am seeing the same results with samba_export_all_rw set to on or off. Maybe I'm misunderstanding what this is intended to do but from windows I cannot see files in /tmp with 'tmp_t' security context (as shown by ls -lZ /tmp). I do see those with 'smbd_tmp_t' which are files placed there from windows via samba. I assumed that this boolean, when on, would allow samba to see files in /tmp regardless of security context. I did try 'touch /.autorelabel' and rebooting, still no dice. >From /etc/samba/smb.conf: # If you need to share a system created directory you can use one of the # following (read-only/read-write): # setsebool -P samba_export_all_ro on # or # setsebool -P samba_export_all_rw on

1 0

/etc/hosts missing localhost?
by Bill Campbell 29 Jul '08

29 Jul '08

Is there any reason why /etc/hosts would be missing the line, 127.0.0.1 localhost? I just spent an hour trying to figure out why I could not connect to postgresql using ``psql -h ...'', finally figuring out that the /etc/hosts file was the problem. Bill -- INTERNET: bill(a)celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way Voice: (206) 236-1676 Mercer Island, WA 98040-0820 Fax: (206) 232-9186 To say that UNIX is doomed is pretty rabid, OS/2 will certainly play a role, but you don't build a hundred million instructions per second multiprocessor micro and then try to run it on OS/2. I mean, get serious. -- William Zachmann, International Data Corp

5 8

Change Web Server to another disk in Centos 5.2
by Salvador Torres 29 Jul '08

29 Jul '08

Hi, I'm new to CentOS 5.2 and I want to know how can I change the /var/www/html directory to another disk. That disk is not even partitioned. I've googled and even searched in centos.org forums and documentation, and found nothing. I want to have in separate disks CentOS and my web server. Can anybody recommend any CentOS 5.2 book, because every time I want to find an answer to my questions I spend a lot of time searching for it in the centos.org website and googling and nothing useful comes up. Thanks

6 7

Xdefaults file.
by James B. Byrne 29 Jul '08

29 Jul '08

I am trying to get my xterm window under gnome to open with large fonts, with light green foreground and dark green background. I have the following .Xdefaults file contents: $ cat .Xdefaults ! This is a comment ;-) #ifdef COLOR *customization: -color #endif !! Let's cast a wide net, for any app supporting these ! Blink instead of beeping *visualBell: True *scrollTtyOutput: False *scrollKey: True XTerm*saveLines: 1500 ! Do not clear the screen after the program exits XTerm*VT100*titeInhibit: true ! Enable soft cut and paste XTerm*VT100.translations: #override \ : select-end(PRIMARY, CLIPBOARD, CUT_BUFFER0) ! Fix up xterm's keybindings xterm*VT100.translations: #override \ <Key>BackSpace: string(0x7F) \n\ <Key>Insert: string(0x1b) string("[2~")\n\ <Key>Delete: string(0x1b) string("[3~")\n\ <Key>Home: string(0x1b) string("[1~")\n\ <Key>End: string(0x1b) string("[4~")\n\ <Key>Page_Up: string(0x1b) string("[5~")\n\ <Key>Page_Down: string(0x1b) string("[6~")\n\ <KeyPress>Prior: scroll-back(1,page)\n\ <KeyPress>Next: scroll-forw(1,page) ! Set xterm defaults Xterm*background: darkgreen Xterm*foreground: lightgreen Xterm*font: 9x15 <--snip At some point I had the colours displaying correctly but I could not get the default font to change to large. In an attempt to get Xterm to use the above file I ran the command: $ xrdb ~/.Xdefaults Now when xterm opens I have a black on white display with tiny fonts. I have to use Xterm in a specific instance because the version of gnome terminal that ships with CentOS-5 breaks vt102 emulation horribly. I have already spent way too much time trying to get Xterm and Xdefaults to work together as they should. I do not understand what it is that I am missing or doing wrong. Can somebody please point out what is wrong with my configuration? I have already read, and reread, the man page. Thanks, -- *** 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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