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34758 discussions

grub problems
by m.roth＠5-cent.us 04 Nov '09

04 Nov '09

This is irritating: I've got a server I just upgraded to 5.4, then rebooted, only to discover that it just *sits* there at the grub boot menu. I looked at grub.conf, and uncommented hiddenmenu (which should have been done long ago). It *still* sits there when I reboot. Any clues, folks? mark grub.conf: #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-164.2.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-164.2.1.el5 ro root=LABEL=/ rhgb initrd /initrd-2.6.18-164.2.1.el5.img title CentOS (2.6.18-164.el5) root (hd0,0) kernel /vmlinuz-2.6.18-164.el5 ro root=LABEL=/ rhgb initrd /initrd-2.6.18-164.el5.img <snip>

5 6

problem installing CentOS 5.3
by Buz Davis 04 Nov '09

04 Nov '09

First, let me apologize to Akemi Yagi for my delay in answering his last query. After failing with 4.8 I realized that I had at least one and possibly two computers capable of handling 5.3 (one was newly purchased second-hand and had many unknowns about it. The other was well documented but its power was obscured by a thick layer of Windows XP). To answer Akemi's last questions, yes, I am sure that the disks were all 4.8. I checked with md5sum before burning the cds and am not sure how to check further than that. I never got past using the first (modified) disk that I downloaded from the url you gave me, because anaconda failed to find a file - having to do with GNOME, so the process aborted. Again I apologize for delaying my response, but I have been occupied again with 5.3, but on the newer computers. 5.3 installed easily and correctly on the first machine (celeron, 1.2Ghz, 512M ram, 80G disk). With the second machine I am getting consistent failure to load X, despite many attempts that appeared to be good installs. For the last attempt I had about 160G of disk available, over 800M of ran, and (as reported by the BIOS, a pentium 3 processor. Unfortunately a remaining big unknown for that system is the Mhz rating for the processor. When I got it, with a broken XP system on it, it was set at 550Mhz. The BIOS allows three choices: 366, 500, and 7xx (I don't remember the last value precisely, but the system wont boot at all, so it's moot). I have mainly messed with the 550 setting, but have occasionally tried at 360. It doesn't seem to make a difference. On that system the output of uname -a gives 2.6.18-128.3l5 for the kernel, and "i686 i686 i386" at the end. Free shows 905240 total and 231688 used. Console mouse services work. When I attempt to load X I get the hollow-x cursor, then the black screen with the nautilus window and then white bars at top and bottom, along with an arrow cursor. The white bars get populated with some icons and then comes the blue screen with the doily-like design, but at that point the system appears to be hung. The computer, home, and trash icons do not appear on the desktop, nor does a mouse-pointer, and wiggling the mouse does nothing. I have compared the /var/log/Xorg.0.log files from the two machines (one that works, one that doesn't), and they both end in the same place: <snip> (--) <default pointer>: PnP-detected protocol: "ExplorerPS/2" (II) <default pointer>: ps2EnableDataReporting: succeeded <eof> I would appreciate any help in getting X to work on this second computer Thanks, Buz Davis

7 8

smartmontools
by m.roth＠5-cent.us 03 Nov '09

03 Nov '09

I'm in the process of rolling out the upgrade from (mostly) 5.3 to 5.4. One of my servers started throwing the following: Nov 1 05:22:51 <server> kernel: target4:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) Nov 1 05:22:51 <server> kernel: target4:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) into my logs every half hour. I don't see anything resembling an error message. The only thing I noted while googling was everyone else spoke of "...ns, offset 127", but I have no clue if that's relevant to anything. The smartd.conf is the default. I'm not running the debug kernel. Does anyone have any idea why it's doing this, and, if it's not important, how to get it to stop cluttering my logs? mark

3 4

Nagios check_file size in another machine
by kebo jantan 03 Nov '09

03 Nov '09

Dear all.... any one can help me??? I am aware of monitoring disk space using nagios (disk partitions with check_disk). Now, I have a situation that I would like to monitor size of an individual file through nagios. e.g /var/lib/mysql/somedatabase/vlog.myd, this file will grow very fast and i would like to monitor if the size of this file crosses 1.5 G. I'm already used 'check_file' but this can't solved my problem. The file in another machine, that 'check_file' can't do it.

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DNS log file question
by James B. Byrne 03 Nov '09

03 Nov '09

I am trying to sort out a configuration problem with y slave servers, more on that in a following message, but while I was examining the system log on one of those servers I saw this: Nov 3 12:30:43 inet04 named[18110]: client 174.88.12.107#60136: query (cache) 'www.soundunwound.com/A/IN' denied Nov 3 12:30:43 inet04 named[18110]: client 174.88.12.107#60140: query (cache) 'www.warehousedeals.com/A/IN' denied Nov 3 12:30:43 inet04 named[18110]: client 174.88.12.107#60140: query (cache) 'www.warehousedeals.com/A/IN' denied Nov 3 12:30:45 inet04 named[18110]: client 174.88.12.107#60147: query (cache) 'www.zappos.com/A/IN' denied Nov 3 12:30:45 inet04 named[18110]: client 174.88.12.107#60147: query (cache) 'www.zappos.com/A/IN' denied Nov 3 12:30:53 inet04 named[18110]: client 174.88.12.107#60156: query (cache) 'www.flipkart.com/A/IN' denied Nov 3 12:30:53 inet04 named[18110]: client 174.88.12.107#60157: query (cache) 'tokyotoys.com/A/IN' denied Nov 3 12:30:53 inet04 named[18110]: client 174.88.12.107#60156: query (cache) 'www.flipkart.com/A/IN' denied Nov 3 12:30:53 inet04 named[18110]: client 174.88.12.107#60157: query (cache) 'tokyotoys.com/A/IN' denied Nov 3 12:30:55 inet04 named[18110]: client 174.88.12.107#60171: query (cache) 'www.animenewsnetwork.com/A/IN' denied Nov 3 12:30:55 inet04 named[18110]: client 174.88.12.107#60171: query (cache) 'www.animenewsnetwork.com/A/IN' denied Nov 3 12:30:55 inet04 named[18110]: client 174.88.12.107#60173: query (cache) 'www.how-to-cosplay.com/A/IN' denied Nov 3 12:30:56 inet04 named[18110]: client 174.88.12.107#60173: query (cache) 'www.how-to-cosplay.com/A/IN' denied Nov 3 12:30:58 inet04 named[18110]: client 174.88.12.107#60186: query (cache) 'www.kaboodle.com/A/IN' denied Nov 3 12:30:58 inet04 named[18110]: client 174.88.12.107#60186: query (cache) 'www.kaboodle.com/A/IN' denied Nov 3 12:30:58 inet04 named[18110]: client 174.88.12.107#60189: query (cache) 'iphone.wareseeker.com/A/IN' denied Nov 3 12:30:58 inet04 named[18110]: client 174.88.12.107#60189: query (cache) 'iphone.wareseeker.com/A/IN' denied Nov 3 12:31:02 inet04 named[18110]: client 174.88.12.107#60201: query (cache) 'optimizedby.rmxads.com/A/IN' denied Nov 3 12:31:02 inet04 named[18110]: client 174.88.12.107#60201: query (cache) 'optimizedby.rmxads.com/A/IN' denied Nov 3 12:31:07 inet04 named[18110]: client 174.88.12.107#60216: query (cache) 'img.amazon.ca/A/IN' denied Now, none of these domains are served by my dns servers so what is going on? Again, I remind potential respondents that I get the digest so please send me a direct copy of any reply to the list. Regards, -- *** 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

3 2

Proper configuration for DNS slaves and masters
by James B. Byrne 03 Nov '09

03 Nov '09

I have the following layout DNS01 - Master DNS02 - Remote slave DNS03 - Local network slave The master is configured so: acl HLLnetworks { 209.47.176/24; 216.185.71/24; }; options { allow-query { any; }; allow-recursion { HLLnetworks; }; allow-transfer { HLLnetworks; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; query-source address 216.185.71.33; listen-on { 216.185.71.33; }; notify yes; }; The slaves are configured this way (appropriately modified for each ip address: acl HLLnetworks { 209.47.176/24; 216.185.71/24; }; options { allow-query { any; }; allow-recursion { HLLnetworks; }; allow-transfer { HLLnetworks; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; notify no; // this is a slave server query-source address 209.47.176.33; listen-on { 127.0.0.1; }; listen-on { 209.47.176.33; }; forwarders { 216.185.71.33; }; }; Now, what I am seeing on one of the slaves when I change a zone in the master and reload is this: Nov 3 12:47:49 inet06 named[9597]: received notify for zone 'byrnejb.ca' but on the other I see this: Nov 3 12:47:50 inet04 named[18368]: client 216.185.71.27#33829: received notify for zone 'byrnejb.ca' Nov 3 12:47:50 inet04 named[18368]: zone byrnejb.ca/IN: refused notify from non-master: 216.185.71.27#33829 The master configuration for byrnejb.ca is zone "byrnejb.ca" { type master; file "/var/named/masters/byrnejb.ca.hosts"; }; On inet06 the slave zone configuration is: zone "byrnejb.ca" { type slave; masters { 216.185.71.33; }; file "/var/named/slaves/byrnejb.ca.hosts"; }; and on inet04 it is: zone "byrnejb.ca" { type slave; masters { 216.185.71.33; }; file "/var/named/slaves/byrnejb.ca.hosts"; }; Which is, as far as I can see, identical. In any case, the real problem is that neither slave actually transfers the updated zone file and I cannot figure out why not. I have verified that the master zone file serial number is greater than that of the slave zones. So, I have two questions: 1. Why is the source address 216.185.71.27 when the bind named listens on 216.185.71.33 and answers queries from the same address. Admittedly, 216.185.71.33 is a virtual ip hosted on 216.185.71.27 but we have been doing this for over a decade now and I have never seen this behaviour before. 2. Why are the notifies ignored? Again, we have had this set up for over a decade and none of these problems until now, and the only thing that has happened on the dns side of things recently were the CentOS updates last week. I am not a DNS specialist, I set this up several years ago and I am perplexed as to why it is now giving me these difficulties. Any help would be gratefully appreciated. Sincerely, -- *** 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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mock, extras vs epel
by Todd Denniston 03 Nov '09

03 Nov '09

I am looking to be a bit more standard in the builds of my CentOS rpms, and so I was about to install mock but noticed that there is one provided in the centos/5/extras and another in epel. epel is obviously newer, but are there reasons/experiences in this group that would suggest sticking with the extras version instead? Or even reasons other than the shiny version number on the epel one to go with it? Is the extras version the version used by the upstream provider and thus the CentOS team keeps it around to do the matching builds? Thanks for the clarifications. -- Todd Denniston Crane Division, Naval Surface Warfare Center (NSWC Crane) Harnessing the Power of Technology for the Warfighter

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Free or low cost online backup?
by Neil Aggarwal 03 Nov '09

03 Nov '09

Hello: Does anyone know a free or low cost online backup system for CentOS? Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime

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Re: [CentOS] CentOS Digest, Vol 57, Issue 31
by Tim_Davis＠cbca.com 03 Nov '09

03 Nov '09

Message: 27 Date: Fri, 30 Oct 2009 21:13:26 -0400 From: Robert Spangler <mlists(a)zoominternet.net> Subject: Re: [CentOS] Syslog do not work To: CentOS mailing list <centos(a)centos.org> Message-ID: <200910302113.26256.mlists(a)zoominternet.net> Content-Type: text/plain; charset="iso-8859-1" On Friday 30 October 2009 16:34, Tim_Davis(a)cbca.com wrote: > The syslog is not working Is it rumnning? check it with ps -ef | grep syslogd > and also I installed Webmin, also it does not > work, > this is what the error is " > > Info Internet Explorer cannot display the webpage " > icon How are you logging into webmin? url? -- Regards Robert Linux User #296285 http://counter.li.org Yes, it is running [root@bart ~]# ps -ef | grep syslogd root 28446 1 0 08:56 ? 00:00:00 syslogd -m0 -r root 28481 28394 0 09:05 pts/1 00:00:00 grep syslogd [root@bart ~]# 2. Logging in as below http://IP_ADDRESS_OF_CENTOS_SERVER:10000 and this is the :- netstat output [root@bart ~]# netstat -an |grep 10000 tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN udp 0 0 0.0.0.0:10000 0.0.0.0:* [root@bart ~]# [root@bart ~]# NOTICE: The information contained in this electronic message, and any attachments accompanying this transmission, may be legally privileged and/or confidential and protected health information. This information is intended only for the use of the individual(s) and/or entity identified above. The authorized recipient of this information is prohibited from disclosing this information to any other party unless required to do so by law or regulation and is required to protect the information after its stated need has been fulfilled. If you are not the intended recipient, or an employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any disclosure, printing, copying, forwarding, or distributing of this information is strictly prohibited. If you have received this communication in error, please notify the sender immediately, by telephone or return fax/email, to advise of wrongful receipt and confirm your understanding of this Notice. Thank You.

1 0

info about hdds in raid
by Eugeneapolinary Ju 03 Nov '09

03 Nov '09

How can I tell wich HDD to swap, when the "cat /proc/mdstat" says one HDD of the RAID1 array has died? Does the HDD's has some serial numbers, that I can see in "reality", and I can get that number from e.g.: a commands output? How could I know wich HDD to swap in e.g.: a RAID1 array? thank you

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