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mmonit - Permission denied errot
by Rajagopal Swaminathan 24 Mar '09

24 Mar '09

Greetings, I just downloaded the mmonit from mmonit.com site on my CentOS box untarred-unizipped it. As per the documentation, I dutifully typed ./bin/mmonit and it is refusing to run. I am running this as root and SELinux is disabled. running it with strace spews the following (in entireity): [begin] # strace ./bin/mmonit execve("./bin/mmonit", ["./bin/mmonit"], [/* 28 vars */]) = -1 EACCES (Permission denied) dup(2) = 3 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fstat64(3, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 2), ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fed000 _llseek(3, 0, 0xbfd7e7b4, SEEK_CUR) = -1 ESPIPE (Illegal seek) write(3, "strace: exec: Permission denied\n", 32strace: exec: Permission denied ) = 32 close(3) = 0 munmap(0xb7fed000, 4096) = 0 exit_group(1) = ? [end strace] What am I missing here? Thanks and Regards Rajagopal

3 3

Is there a web-based server status package?
by Xn Nooby 24 Mar '09

24 Mar '09

I have a small squirrelmail server using Postfix & Dovecot, and I would like to add a web-based "status" screen to remotely check its health. Is there a preferred packaged for doing this? I mostly want to monitor disk space usage, and CPU utilization.

4 4

question about top output
by Greenseid, Joseph M (IS) 24 Mar '09

24 Mar '09

hi all, below is the output of top off a machine i have, sorted by CPU utilization. my question is, how can all 8 CPUs say they're pegged at 100% user utilization, when there are just these 8 processes saying they're using 25% of a CPU each, and no other processes showing up taking any resources? i have run this test on other machines and they act as expected. i found this b/c this node was running a lot slower for some reason, and i can't figure out why. there are no error messages anywhere... top - 00:16:34 up 8 days, 2:05, 1 user, load average: 8.40, 8.31, 8.24 Tasks: 156 total, 9 running, 147 sleeping, 0 stopped, 0 zombie Cpu0 : 97.2%us, 1.4%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 1.4%si, 0.0%st Cpu1 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu2 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 98.6%us, 1.4%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 98.6%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 1.4%si, 0.0%st Cpu6 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 16424052k total, 13900392k used, 2523660k free, 10560k buffers Swap: 499988k total, 152k used, 499836k free, 28700k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 8568 jgreen 25 0 2089m 1.7g 4184 R 23 10.5 109:06.90 xhpl 8572 jgreen 25 0 2080m 1.6g 4184 R 23 10.5 109:12.40 xhpl 8574 jgreen 25 0 2079m 1.6g 4220 R 23 10.5 109:07.43 xhpl 8575 jgreen 25 0 2063m 1.6g 4168 R 23 10.4 109:08.12 xhpl 8570 jgreen 25 0 2084m 1.6g 4188 R 23 10.5 109:07.52 xhpl 8571 jgreen 25 0 2067m 1.6g 4188 R 23 10.4 109:08.51 xhpl 8569 jgreen 25 0 2072m 1.6g 4196 R 22 10.4 109:07.77 xhpl 8573 jgreen 25 0 2062m 1.6g 4204 R 22 10.4 109:08.23 xhpl 4457 root 15 0 12056 1424 992 S 0 0.0 8:01.62 pbs_mom 1 root 15 0 10316 792 660 S 0 0.0 0:02.74 init 2 root RT -5 0 0 0 S 0 0.0 0:00.01 migration/0 3 root 34 19 0 0 0 S 0 0.0 0:00.01 ksoftirqd/0 4 root RT -5 0 0 0 S 0 0.0 0:00.02 watchdog/0 5 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/1 6 root 34 19 0 0 0 S 0 0.0 0:00.00 ksoftirqd/1 thanks, --Joe

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CentOS-announce Digest, Vol 49, Issue 10
by centos-announce-request＠centos.org 24 Mar '09

24 Mar '09

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2009:0341-01: Low CentOS 2 i386 Moderate security update (John Newbigin) ---------------------------------------------------------------------- Message: 1 Date: Tue, 24 Mar 2009 15:11:36 +1100 From: John Newbigin <jnewbigin(a)ict.swin.edu.au> Subject: [CentOS-announce] CESA-2009:0341-01: Low CentOS 2 i386 Moderate security update To: centos-announce(a)centos.org Message-ID: <49C85D78.2050408(a)ict.swin.edu.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed The following errata for CentOS-2 have been built and uploaded to the centos mirror: RHSA-2009:0341-01 Moderate: curl security update Files available: curl-7.8-3.rhel2.i386.rpm curl-devel-7.8-3.rhel2.i386.rpm More details are available from the RedHat web site at https://rhn.redhat.com/errata/rh21as-errata.html The easy way to make sure you are up to date with all the latest patches is to run: # yum update -- John Newbigin ITS Senior Analyst / Programmer Faculty of Information and Communication Technologies Swinburne University of Technology Melbourne, Australia http://www.ict.swin.edu.au/staff/jnewbigin ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 49, Issue 10 ***********************************************

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Re: [CentOS] hplip problems - configure: error: "cannot find libjpeg support"
by Anne Wilson 24 Mar '09

24 Mar '09

On Sunday 08 March 2009 20:58, you wrote: > yes, the "yum list" output shows both installed and available (from > the repos you have configured). if not installed it shows the repo - > e.g., "base", "rpmforge". so, if you're is showing installed there's > something else going on. is it complaining about dbus-python in > general, or is it giving a version/release-specific error? # hp-setup warning: python-dbus not installed. HP Linux Imaging and Printing System (ver. 3.9.2) Printer/Fax Setup Utility ver. 8.0 <snip> (Note: Defaults for each question are maked with a '*'. Press <enter> to accept the default.) Using connection type: usb error: No device selected/specified or that supports this functionality. That is correct. The printer in question is a networked one, and I would expect to have to set it in hp-setup. It works from other boxes with more recent distros. > there's > also: > > rpm -qa dbus-python\* > > to check that something is installed. That simply returns dbus-python-0.70-7.el5 Anne

4 17

SATA tape drive on 4.7
by C Linus Hicks 24 Mar '09

24 Mar '09

I have gotten a hard system lockup several times using star on my system with a Quantum DLT-V4 SATA tape drive. I am including what got recorded in /var/log/messages from the most recent event showing stack trace. Output from uname -a: Linux lh10 2.6.9-78.0.13.ELsmp #1 SMP Wed Jan 14 15:55:36 EST 2009 x86_64 x86_64 x86_64 GNU/Linux Mar 22 22:02:59 lh10 kernel: Bad page state at free_hot_cold_page (in process 'star', page 00000102382b1ec8) Mar 22 22:02:59 lh10 kernel: flags:0x0100000c mapping:00000102146a4240 mapcount:2 count:0 Mar 22 22:02:59 lh10 kernel: Backtrace: Mar 22 22:02:59 lh10 kernel: Mar 22 22:02:59 lh10 kernel: Call Trace:<ffffffff8015f0cf>{bad_page+112} <ffffffff8015f7b1>{free_hot_cold_page+130} Mar 22 22:02:59 lh10 kernel: <ffffffffa00d17b8>{:st:sgl_unmap_user_pages+67} <ffffffffa00d17df>{:st:release_buffering+27} Mar 22 22:02:59 lh10 kernel: <ffffffffa00d6196>{:st:st_write+2692} <ffffffff80194b39>{inode_update_time+159} Mar 22 22:02:59 lh10 kernel: <ffffffff8017beaa>{vfs_write+207} <ffffffff8017bf92>{sys_write+69} Mar 22 22:02:59 lh10 kernel: <ffffffff801102f6>{system_call+126} Mar 22 22:02:59 lh10 kernel: Trying to fix it up, but a reboot is needed Mar 22 22:02:59 lh10 kernel: Bad page state at free_hot_cold_page (in process 'star', page 000001023eb70ed8) Mar 22 22:02:59 lh10 kernel: flags:0x0100000c mapping:00000102146a4240 mapcount:2 count:0 Mar 22 22:02:59 lh10 kernel: Backtrace: Mar 22 22:02:59 lh10 kernel: Mar 22 22:02:59 lh10 kernel: Call Trace:<ffffffff8015f0cf>{bad_page+112} <ffffffff8015f7b1>{free_hot_cold_page+130} Mar 22 22:02:59 lh10 kernel: <ffffffffa00d17b8>{:st:sgl_unmap_user_pages+67} <ffffffffa00d17df>{:st:release_buffering+27} Mar 22 22:02:59 lh10 kernel: <ffffffffa00d6196>{:st:st_write+2692} <ffffffff80194b39>{inode_update_time+159} Mar 22 22:02:59 lh10 kernel: <ffffffff8017beaa>{vfs_write+207} <ffffffff8017bf92>{sys_write+69} Mar 22 22:02:59 lh10 kernel: <ffffffff801102f6>{system_call+126} Mar 22 22:02:59 lh10 kernel: Trying to fix it up, but a reboot is needed Mar 22 22:02:59 lh10 kernel: Bad page state at free_hot_cold_page (in process 'star', page 000001023d3bc220) Mar 22 22:02:59 lh10 kernel: flags:0x0100000c mapping:00000102146a4240 mapcount:2 count:0 Mar 22 22:02:59 lh10 kernel: Backtrace: Mar 22 22:02:59 lh10 kernel: Mar 22 22:02:59 lh10 kernel: Call Trace:<ffffffff8015f0cf>{bad_page+112} <ffffffff8015f7b1>{free_hot_cold_page+130} Mar 22 22:02:59 lh10 kernel: <ffffffffa00d17b8>{:st:sgl_unmap_user_pages+67} <ffffffffa00d17df>{:st:release_buffering+27} Mar 22 22:02:59 lh10 kernel: <ffffffffa00d6196>{:st:st_write+2692} <ffffffff80194b39>{inode_update_time+159} Mar 22 22:02:59 lh10 kernel: <ffffffff8017beaa>{vfs_write+207} <ffffffff8017bf92>{sys_write+69} Mar 22 22:02:59 lh10 kernel: <ffffffff801102f6>{system_call+126} Mar 22 22:02:59 lh10 kernel: Trying to fix it up, but a reboot is needed Mar 22 22:02:59 lh10 kernel: Bad page state at free_hot_cold_page (in process 'star', page 0000010238c68e80) Mar 22 22:02:59 lh10 kernel: flags:0x0100000c mapping:00000102146a4240 mapcount:2 count:0 Mar 22 22:03:00 lh10 kernel: Backtrace: Mar 22 22:03:00 lh10 kernel: Mar 22 22:03:00 lh10 kernel: Call Trace:<ffffffff8015f0cf>{bad_page+112} <ffffffff8015f7b1>{free_hot_cold_page+130} Mar 22 22:03:00 lh10 kernel: <ffffffffa00d17b8>{:st:sgl_unmap_user_pages+67} <ffffffffa00d17df>{:st:release_buffering+27} Mar 22 22:03:00 lh10 kernel: <ffffffffa00d6196>{:st:st_write+2692} <ffffffff80194b39>{inode_update_time+159} Mar 22 22:03:00 lh10 kernel: <ffffffff8017beaa>{vfs_write+207} <ffffffff8017bf92>{sys_write+69} Mar 22 22:03:00 lh10 kernel: <ffffffff801102f6>{system_call+126} Mar 22 22:03:00 lh10 kernel: Trying to fix it up, but a reboot is needed Mar 22 22:03:00 lh10 kernel: Bad page state at free_hot_cold_page (in process 'star', page 000001023c14d570) Mar 22 22:03:00 lh10 kernel: flags:0x0100000c mapping:00000102146a4240 mapcount:2 count:0 Mar 22 22:03:00 lh10 kernel: Backtrace: Mar 22 22:03:00 lh10 kernel: Mar 22 22:03:00 lh10 kernel: Call Trace:<ffffffff8015f0cf>{bad_page+112} <ffffffff8015f7b1>{free_hot_cold_page+130} Mar 22 22:03:00 lh10 kernel: <ffffffffa00d17b8>{:st:sgl_unmap_user_pages+67} <ffffffffa00d17df>{:st:release_buffering+27} Mar 22 22:03:00 lh10 kernel: <ffffffffa00d6196>{:st:st_write+2692} <ffffffff80194b39>{inode_update_time+159} Mar 22 22:03:00 lh10 kernel: <ffffffff8017beaa>{vfs_write+207} <ffffffff8017bf92>{sys_write+69} Mar 22 22:03:00 lh10 kernel: <ffffffff801102f6>{system_call+126} Mar 22 22:03:00 lh10 kernel: Trying to fix it up, but a reboot is needed Mar 22 22:03:00 lh10 kernel: Bad page state at free_hot_cold_page (in process 'X', page 000001023c14d570) Mar 22 22:03:00 lh10 kernel: flags:0x01020008 mapping:00000101ec811360 mapcount:0 count:0 Mar 22 22:03:00 lh10 kernel: Backtrace: Mar 22 22:03:00 lh10 kernel: Mar 22 22:03:00 lh10 kernel: Call Trace:<ffffffff8015f0cf>{bad_page+112} <ffffffff8015f7b1>{free_hot_cold_page+130} Mar 22 22:03:00 lh10 kernel: <ffffffff8015f86a>{__pagevec_free+39} <ffffffff80165a5d>{release_pages+366} Mar 22 22:03:01 lh10 kernel: <ffffffff8016d921>{__vma_link+66} <ffffffff8016dd53>{vma_adjust+815} Mar 22 22:03:01 lh10 kernel: <ffffffff80165e4b>{__pagevec_mark_accessed+394} <ffffffff80166091>{lru_add_drain+91} Mar 22 22:03:01 lh10 kernel: <ffffffff8016e971>{do_munmap+355} <ffffffff8016f55e>{sys_brk+136} Mar 22 22:03:01 lh10 kernel: <ffffffff801102f6>{system_call+126} Mar 22 22:03:01 lh10 kernel: Trying to fix it up, but a reboot is needed star had been running about 20 to 30 minutes at the time of the crash. I have seen two or three crashes previously all denoting "Bad page state at free_hot_cold_page." This appears to have been reported as a bug in 2.6.12: https://lists.linux-foundation.org/pipermail/bugme-new/2005-August/012862.h… It was updated March 10, 2008 as rejected unreproducible. I have seen the problem three times in three days now without trying to reproduce it. Can I get any help on getting a fix? Linus

2 3

Disks do not mount at boot
by Theo Band 24 Mar '09

24 Mar '09

I have a problem with two entries in my /etc/fstab. When I boot the machine, the disks are not mounted. When I give mount -a, all disks are present without an error. Of course I don't want to manually do that after each reboot. What can be the problem? CentOS 5.2 cat /etc/fstab /dev/vg/centos / ext3 defaults 1 1 LABEL=/boot /boot ext3 defaults 1 2 LABEL=zele_common /dczele01/ ext3 defaults 1 2 LABEL=users /dczele01/users ext3 defaults 1 2 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/vg/swap swap swap defaults 0 0 arend:/home /home nfs proto=tcp,nfsvers=3,bg,defaults 0 0 arend:/program /program nfs proto=tcp,nfsvers=3,bg,defaults 0 0 Instead of LABEL I also tried to use the device /dev/vg2/users. The filesystem is created on a logical volume, part of a new volume group: lvs LV VG Attr LSize Origin Snap% Move Log Copy% Convert centos vg -wi-ao 6.91G swap vg -wi-ao 992.00M users vg2 -wi-ao 50.00G zele_common vg2 -wi-ao 100.00G After booting /etc/mtab and mount do not list the /dczele01 entries. In the log I see these lines: Mar 24 08:42:02 fsutrecht kernel: md: Autodetecting RAID arrays. Mar 24 08:42:02 fsutrecht kernel: md: autorun ... Mar 24 08:42:02 fsutrecht kernel: md: ... autorun DONE. Mar 24 08:42:02 fsutrecht kernel: device-mapper: multipath: version 1.0.5 loaded Mar 24 08:42:02 fsutrecht kernel: EXT3 FS on dm-0, internal journal Mar 24 08:42:02 fsutrecht kernel: kjournald starting. Commit interval 5 seconds Mar 24 08:42:02 fsutrecht kernel: EXT3 FS on sda1, internal journal Mar 24 08:42:02 fsutrecht kernel: EXT3-fs: mounted filesystem with ordered data mode. Mar 24 08:42:03 fsutrecht kernel: kjournald starting. Commit interval 5 seconds Mar 24 08:42:03 fsutrecht kernel: EXT3 FS on dm-3, internal journal Mar 24 08:42:03 fsutrecht kernel: EXT3-fs: mounted filesystem with ordered data mode. Mar 24 08:42:03 fsutrecht kernel: kjournald starting. Commit interval 5 seconds Mar 24 08:42:03 fsutrecht kernel: EXT3 FS on dm-2, internal journal Mar 24 08:42:03 fsutrecht kernel: EXT3-fs: mounted filesystem with ordered data mode. Mar 24 08:42:03 fsutrecht kernel: Adding 1015800k swap on /dev/vg/swap. Priority:-1 extents:1 across:1015800k Then I give a mount -a and see this in the log: Mar 24 08:44:28 fsutrecht kernel: kjournald starting. Commit interval 5 seconds Mar 24 08:44:28 fsutrecht kernel: EXT3 FS on dm-3, internal journal Mar 24 08:44:28 fsutrecht kernel: EXT3-fs: mounted filesystem with ordered data mode. Mar 24 08:44:28 fsutrecht kernel: kjournald starting. Commit interval 5 seconds Mar 24 08:44:28 fsutrecht kernel: EXT3 FS on dm-2, internal journal Mar 24 08:44:28 fsutrecht kernel: EXT3-fs: mounted filesystem with ordered data mode. So from the log it looks like the mount is done, but nothing is actually mounted. I'm puzzled. The nfs shares and the /boot drive are mounted correctly. So what could cause these two shares to not mount automatically? What else can I do to debug? Thanks, Theo

1 1

How to add ClamAV to Postfix?
by Xn Nooby 24 Mar '09

24 Mar '09

I sent this email to the Rehdat list, but I thought the Centos users might be more inclined to have the command-line solution I am looking for, so I thought I would post it here too: I would like to add anti-virus to my email server. Currently I have Postfix, Dovecot, PHP, and Squirrelmail installed. The users only use Squirrelmail to access mail. I am looking for command-line instructions, since I have limited access to the server itself (I am using SSH). ClamAV seems to be most common linux AV package, so I assume I should be using that. I'm not sure if I should be using Amavisd or MailScanner, or neither. I believe I need one of them to act as the glue that connects Postfix to ClamAV. Apparently none of these packages (Amavisd/MailScanner/ClamAV) are part of RHEL5, so I have to get the RPMS from somewhere else. Is there some standard way of adding AV to Postfix?

9 13

help needed with DNS server
by Rudi Ahlers 23 Mar '09

23 Mar '09

Hi all, I'm setting up a DNS server on CentOS 5.2, but can't get it to listen to the outside IP address for DNS queries. There's no firewall installed yet. Here's the BIND config options: options { /* make named use port 53 for the source of all queries, to allow * firewalls to block all ports except 53: */ query-source port 53; // Put files that named is allowed to write in the data/ directory: directory "/var/named"; // the default dump-file "data/cache_dump.db"; statistics-file "data/named_stats.txt"; /* memstatistics-file "data/named_mem_stats.txt"; */ }; Yet, it only listes on 127.0.0.1 netstat -tulpn | grep :53 Stopping named: [ OK ] Starting named: [ OK ] tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 28979/named tcp 0 0 ::1:53 :::* LISTEN 28979/named udp 0 0 127.0.0.1:53 0.0.0.0:* 28979/named udp 0 0 ::1:53 :::* 28979/named What am I missing? -- Kind Regards Rudi Ahlers

4 4

Form to mail script generators for Linux?
by Linda Stark 23 Mar '09

23 Mar '09

Hi, I am trying to find out if there are any Linux based “form to mail” php script generators available, that would generate the script needed to profess web mail forms such as a “contact us” page or a “mail us” page on a web site. There was one in patricular I was looking at that is windows based, called “Forms To Go”, a commercial package, which from what I have gathered is the most popular in it’s class and apparently it generates secure code. Thanks for any info. _________________________________________________________________ Internet Explorer 8 – Now Available. Faster, safer, easier. http://clk.atdmt.com/MRT/go/141323790/direct/01/

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