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Changed md5sums on a bare-bones install. Logical explanation?
by John Ziniti 15 Jun '06

15 Jun '06

I'm new to this list, so feel free to update me on any rules that I seem not to be familiar with. I'm looking at some strange behavior on a _very_ barebones installation. I'd like to get some feedback on possible logical explanations. * What I'm seeing: The md5sum of all of my binaries in /usr/bin and /usr/sbin are changing exactly one hour after installation of CentOS-4.3. The sizes of the files are increased, with minor changes visible at the beginning of the files, and a large chunk added to the end. Other files are also changing (under /usr/lib for example. Tripwire, if installed, goes *nuts*). My first inclination is that this is a virus, but I have installed this OS on a non-networked machine from what I believe to be clean CDs. * More information: I downloaded the x86_64 installation ISOs from wuarchive.wustl.edu. I checked md5sums and burned the ISO images to CD and then checked the md5sums again. I am assuming this to mean that the CDs are OK. I then installed the "Minimal" package from these CDs onto a machine which was not connected to the network. I allowed the installer to reformat the partitions, and generally used default options wherever possible. I then rebooted the machine, and checked the md5sum of an example program (/usr/sbin/lsof). I set up a script to log the md5sum of /usr/sbin/lsof every 1 minute and let it run overnight. Exactly 1 hour after the machine had come up, the md5sum of /usr/sbin/lsof was now changed and the binary no longer matched a copy I had made into root's home. Virus checkers such as clamav and f-prot (with updated databases) are negative. These are launched from a Helix Incident Response LiveCD. I have repeated this experiment dozens of times now with different options, settings, etc. Always with the same outcome. I find it hard to believe there is a virus on the CentOS-4.3 installation ISOs, but I'm having trouble coming up with other explanations. For starters, what is the md5sum of *your* /usr/sbin/lsof (if you've installed x86_64)? Any ideas on what is going on here? I can perform pretty much any experiments you can think of on this machine. Am I missing a way for a virus to survive a reformat of the hard drive? Thanks in advance for any help, John Ziniti

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Enabling MD5 (longer passwords) after installation?
by M. Fioretti 14 Jun '06

14 Jun '06

I have noticed on a Centos 4.3 server where I had set some >8 characters passwords for some accounts, that only the first 8 characters are needed (if I forget or mistype the others I login all the same). Can I "move" the live, running system to longer passwords, and how? or is a reinstall necessary? TIA, Marco -- Marco Fioretti mfioretti, at the server mclink.it Fedora Core 3 for low memory http://www.rule-project.org/ Man becomes truly man only by passing beyond himself. Paul VI, POPULORUM PROGRESSIO

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CentOS 4.3 under VMWare ESX 2.5.3 Server
by Adriano Viscarde 14 Jun '06

14 Jun '06

I have a IBM XSeries 366 with 04 processors Intel Xeon 3.16 Ghz, 16 Gb of memory and a storage IBM with 2 terabytes. I work with virtualization and my OS in this machine is a VMware ESX 2.5.3 version. When I install CentOS 4.X as guest operating system under ESX, the performance is very very bad. When I intsall RHES4 as guest operating system under ESX, the performance is very good. It will be that it has some problem CentOS to work with virtualization?

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Microsoft-ds and H.323/Q.931? Which services are these?
by M. Fioretti 14 Jun '06

14 Jun '06

Hello, I have just ran nmap on a remote server with a minimal (or so I believed) Centos 4.3 installation. Besides what I expected (ssh, httpd, smtp) it found as open for listening these ports: Starting Nmap 3.95 ( http://www.insecure.org/nmap/ ) at 2006-06-14 17:57 CEST Interesting ports on <my.remote.server> (The 1667 ports scanned but not shown below are in state: closed) PORT STATE SERVICE 445/tcp filtered microsoft-ds 1720/tcp filtered H.323/Q.931 which programs are these, and why should they be part of a server install? How can I find them so I can uninstall them? TIA, Marco -- Marco Fioretti mfioretti, at the server mclink.it Fedora Core 3 for low memory http://www.rule-project.org/ Live simply so others may simply live. Ghandi

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How to create a secure user only for ssh login?
by M. Fioretti 14 Jun '06

14 Jun '06

Hello, I've read on several howtos that one way to make ssh more secure, or at least reduce the damage if somebody breaks in, is to NOT allow direct ssh login from root, but allow logins from another user. So you have to know two passwords in order to do any real damage. Does this make sense? IF yes, what is the right way to create an user only for this purpose, that is one that can only login to give me a local prompt to become root, but has no privilege, no possibility to create files, or do anything at all? TIA, Marco -- Marco Fioretti mfioretti, at the server mclink.it Fedora Core 3 for low memory http://www.rule-project.org/ Don't you wish you had more energy... or less ambition?

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RE: [CentOS] How to create a secure user only for ssh login?
by King, John (Greg) (LMIT-HOU) 14 Jun '06

14 Jun '06

> > (must I)/can I reduce as much as possible the privileges/access rights > of the my_aux_login account? so that if somebody breaks _its_ > password, it won't be able to do anything, including browsing around > to see what's installed? Ah. I think I have a clearer idea on what your wanting to do now. You may want to look at SELinux (Comes with CentOS 4 but may either be enabled,set to warn or disabled depending on how it was installed). I have yet had time to understand the SELinux mechanism but I recall a discussion where the person used SELinux to reconfigure what the root account could do, left the console logged in and asked people to break into the system using the root account. If SELinux can be used to change how root behaves it should be able to do the same with non-root accounts. Anyhow here are some links I found that may help. http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/selinux-guid e/rhlcommon-section-0047.html http://danwalsh.livejournal.com/1538.html http://www.nsa.gov/selinux/ -Greg

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RE: [CentOS] Simple backup program
by Mark Schoonover 14 Jun '06

14 Jun '06

Robin Mordasiewicz wrote: > On Wed, 14 Jun 2006, Les Mikesell wrote: > >> On Wed, 2006-06-14 at 13:09 -0400, Bowie Bailey wrote: >>>>> I am looking for a simple backup program that I can use to backup >>>>> a CentOS box to a local tape drive. >> >>>> http://flexbackup.sf.net >>>> >>>> I used that for years, but the network grew and needed a "bigger" >>>> solution so I switched to backuppc which is working great. >>> >>> I'm using backuppc. I just need something to dump the backuppc >>> machine to tape for an offsite or last-resort backup. The problem >>> is that backuppc is currently using 161GB (compressed) and the >>> tapes only hold 40GB each, so I need something with some sort of >>> intelligent tape-spanning capability. >> >> You are going to have more trouble than that. Backuppc will have >> millions of hardlinks in that 161GB and nearly all file oriented >> backup programs will take an impractical amount of time to deal >> with them. And restoring will be even worse - basically everything >> ends up building a table of inode numbers and scanning it for a >> match on every hardlink. >> >>> I haven't seen flexbackup. I'm currently evaluating afbackup. >> >> You really want a matching external hard drive so you can >> dd an image copy to it. There has been quite a bit of discussion >> on this topic on the backuppc mail list and I'm not sure anyone >> has come up with an ideal solution. Or, you can use the 'archive >> host' feature of backuppc to generate tar images of backup runs >> optionally compressed and split to fit your media, but these >> are copies of individual hosts and you loose the pooling feature. >> > my .02$ is bacula > It spans tapes. fully featured, reliable, well documented etc. I used to use Bacula way back when, but restoring large amounts of data - 1TB range from tape is very slow. Went rsync to drives on another internal server, and a backup server in our colo. Rsync makes it very easy to do hourly, daily, weekly or monthly snapshots of data. HTH Mark

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OpenSSH w/ Kerberos
by Michael B Allen 14 Jun '06

14 Jun '06

I'm slightly shocked to see that ssh doesn't do kerberos. Is this possible or am I being stupid? Mike -- Michael B Allen PHP Extension for SSO w/ Windows Group Authorization http://www.ioplex.com/

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RE: [CentOS] Simple backup program
by Bowie Bailey 14 Jun '06

14 Jun '06

Ajay Sharma wrote: > Bowie Bailey wrote: > > I am looking for a simple backup program that I can use to backup a > > CentOS box to a local tape drive. Hopefully someone here can give > > me a recommendation. > > > > This is what I need: > > - Simple launching of manual backups (preferably from the > > command line) > > - Ability to span tapes for a large backup > > - Proper treatment of hardlinked files > > - Notification via email or similar when it is ready for the > > next tape. > > > > I tried mondo-rescue, but decided against it after it spent 4 hours > > just trying to index the files (it never actually started the > > backup). > > > > I am considering Amanda, but the setup is a bit complex and, based > > on the docs, the tape spanning capability isn't the best. > > > > Anyone have any suggestions? I would think that there would be a > > simple program out there to backup and restore from tape without all > > of the extra scheduling and indexing features. > > http://flexbackup.sf.net > > I used that for years, but the network grew and needed a "bigger" > solution so I switched to backuppc which is working great. I'm using backuppc. I just need something to dump the backuppc machine to tape for an offsite or last-resort backup. The problem is that backuppc is currently using 161GB (compressed) and the tapes only hold 40GB each, so I need something with some sort of intelligent tape-spanning capability. I haven't seen flexbackup. I'm currently evaluating afbackup. -- Bowie

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2 machines running centos and parallel ports
by Jerry Geis 14 Jun '06

14 Jun '06

I have two machines both running centos 4.3. I have a laplink cable (parallel) between them. On one machine I do "echo Hello > /dev/parport0" on the other machine I wrote a short c program to open /dev/parport0 and when characters arrive print them on the screen. Seems simple enough but nothing comes across. Both machines parallel ports are set for PS/2 mode. Is there a reason this would not work? THanks, jerry

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RE: [CentOS] How to create a secure user only for ssh login?
by King, John (Greg) (LMIT-HOU) 14 Jun '06

14 Jun '06

One way is the wheel group in /etc/group. Uncomment the following line in /etc/pam.d/su: auth required /lib/security/$ISA/pam_wheel.so use_uid Uncommenting this line allows only the users in the wheel group to become root by using the su command and entering the root password. All other users will receive a message stating the password is incorrect. You will also want to create the wheel group in /etc/group and add users to it if it does not exist (CentOS 4 I know does but some older redhat implementations did not if I recall correctly). I am unsure of how this interacts with sudo though. If you allow users to use sudo command, make sure they cannot 'sudo su root'. -Greg > -----Original Message----- > From: centos-bounces(a)centos.org > [mailto:centos-bounces@centos.org] On Behalf Of M. Fioretti > Sent: Wednesday, June 14, 2006 11:57 AM > To: centos(a)centos.org > Subject: [CentOS] How to create a secure user only for ssh login? > > Hello, > > I've read on several howtos that one way to make ssh more secure, or > at least reduce the damage if somebody breaks in, is to NOT allow > direct ssh login from root, but allow logins from another user. So you > have to know two passwords in order to do any real damage. > > Does this make sense? IF yes, what is the right way to create an user > only for this purpose, that is one that can only login to give me a > local prompt to become root, but has no privilege, no possibility to > create files, or do anything at all? > > TIA, > Marco > > -- > Marco Fioretti mfioretti, at the server mclink.it > Fedora Core 3 for low memory http://www.rule-project.org/ > > Don't you wish you had more energy... or less ambition? > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos >

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RE: [CentOS] Tape drive throughput
by Bowie Bailey 14 Jun '06

14 Jun '06

Joshua Gimer wrote: > Bowie Bailey wrote: > > I have a backup spooling onto a DLT drive. Is there any tool that > > will let me monitor the data throughput on the device? > > You can use iostat which is part of the sysstat package. > > yum install sysstat > > You can set up an interval and a count and have it redirected to a > file for later reference > > iostat 10 20 >> filename Now why didn't I think of that? :) It doesn't appear to be able to show me the tape device directly, but I can get a pretty good idea from watching the disk reads since this system isn't doing anything else at the moment. Thanks. -- Bowie

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RE: [CentOS] Tape drive throughput
by Bowie Bailey 14 Jun '06

14 Jun '06

Bowie Bailey wrote: > I have a backup spooling onto a DLT drive. Is there any tool that > will let me monitor the data throughput on the device? Based on all of the conversation this question generated, it sounds like the answer is "no". Interesting discussion, tho. :) Thanks for all the suggestions. -- Bowie

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Re: [CentOS] Restoring data from disk w/ messed up partition tables
by techlists＠comcast.net 14 Jun '06

14 Jun '06

Unfortunately, I do *not* remember the original partition settings. I was hoping to find a live CD that could fix such disasters (i.e. systemrescueCD, or some such thing). I did find a Windows based program that's supposed to do the trick. The evaluation edition lets you see if it can see your lost data; you have to buy it ($79) to actually be able to recover the data. This was at: http://www.stellarinfo.com/linux-data-recovery.htm I'm sure there must be an open source trick somewhere that should work though. Paul -------------- Original message ---------------------- From: "William L. Maltby" <BillsCentOS(a)triad.rr.com>

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Cleaning Up My Process Table
by Michael B Allen 14 Jun '06

14 Jun '06

I'm upgrading my primary server from RH 7.2 to CentOS-4.3.ServerCD. I REALLY like the ServerCD. Who needs all the fluff that comes with a standard distro? If I want a system-config-gooey I can run Xnest [1] and ssh -X from my laptop. Anyway I have two questions: 1) How can I collectively stop all the NFS, portmap, whatever? I'm hoping it can be manipulated as a group because occationally I actually will want to use NFS. 2) Can I safely turn off dbus, hal, and/or xfs? Or will something really bad happen if I try to run the system-config-gooey's without them? Thanks, Mike [1] Although I haven't managed to figure out how to run it without -ac. PID TTY STAT TIME COMMAND 1 ? S 0:00 init [3] 2 ? SN 0:00 [ksoftirqd/0] 3 ? S< 0:00 [events/0] 4 ? S< 0:00 \_ [khelper] 5 ? S< 0:00 \_ [kacpid] 16 ? S< 0:00 \_ [kblockd/0] 26 ? S 0:00 \_ [pdflush] 27 ? S 0:00 \_ [pdflush] 29 ? S< 0:00 \_ [aio/0] 1055 ? S< 0:00 \_ [kauditd] 1095 ? S< 0:00 \_ [kmirrord] 1096 ? S< 0:00 \_ [kmir_mon] 17 ? S 0:00 [khubd] 28 ? S 0:00 [kswapd0] 103 ? S 0:00 [kseriod] 178 ? S 0:00 [kjournald] 980 ? S<s 0:00 udevd 1115 ? S 0:00 [kjournald] 1743 ? Ss 0:00 syslogd -m 0 1747 ? Ss 0:00 klogd -x 1774 ? Ss 0:00 portmap 1793 ? Ss 0:00 rpc.statd 1819 ? Ss 0:00 rpc.idmapd 1883 ? S 0:00 /usr/sbin/smartd 1892 ? Ss 0:00 /usr/sbin/acpid 1903 ? Ss 0:00 cupsd 1956 ? Ss 0:00 /usr/sbin/sshd 2482 ? Ss 0:00 \_ sshd: root@pts/0 2484 pts/0 Ss 0:00 \_ -bash 2650 pts/0 R+ 0:00 \_ ps fax 1977 ? Ss 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid 1992 ? SLs 0:00 ntpd -u ntp:ntp -p /var/run/ntpd.pid 2001 ? Ss 0:00 crond 2022 ? Ss 0:00 xfs -droppriv -daemon 2039 ? Ss 0:00 /usr/sbin/atd 2048 ? Ssl 0:00 dbus-daemon-1 --system 2058 ? Ss 0:00 hald 2087 tty1 Ss+ 0:00 /sbin/mingetty tty1 2092 tty2 Ss+ 0:00 /sbin/mingetty tty2 2093 tty3 Ss+ 0:00 /sbin/mingetty tty3 2094 tty4 Ss+ 0:00 /sbin/mingetty tty4 2095 tty5 Ss+ 0:00 /sbin/mingetty tty5 2096 tty6 Ss+ 0:00 /sbin/mingetty tty6 2625 ? Ssl 0:00 /usr/sbin/named -u named -t /var/named/chroot -- Michael B Allen PHP Extension for SSO w/ Windows Group Authorization http://www.ioplex.com/

4 3

changing the eye candy on the default screensaver
by Larry Vaden 14 Jun '06

14 Jun '06

Has anyone already worked out the files involved in changing from the rather pedestrian screensaver to some more pleasing eye candy like Fedora Core 5 uses? thnx/ldv

3 5

Simple backup program
by Bowie Bailey 14 Jun '06

14 Jun '06

I am looking for a simple backup program that I can use to backup a CentOS box to a local tape drive. Hopefully someone here can give me a recommendation. This is what I need: - Simple launching of manual backups (preferably from the command line) - Ability to span tapes for a large backup - Proper treatment of hardlinked files - Notification via email or similar when it is ready for the next tape. I tried mondo-rescue, but decided against it after it spent 4 hours just trying to index the files (it never actually started the backup). I am considering Amanda, but the setup is a bit complex and, based on the docs, the tape spanning capability isn't the best. Anyone have any suggestions? I would think that there would be a simple program out there to backup and restore from tape without all of the extra scheduling and indexing features. -- Bowie

6 5

DELL openmanage question
by Robin Mordasiewicz 14 Jun '06

14 Jun '06

Has someone created a how to or a tutorial for installing/configuring DELL openmanage on centos ? --

5 8

SSL fingerpring mismatch and issuer certificate problem
by M. Fioretti 13 Jun '06

13 Jun '06

I have a remote server running centos 4.3 and a home desktop running suse 10.1. I have generated an SSL certificate on the server, copied it on the desktop and run on the desktop: >openssl x509 -in mynewcertCert.pem -fingerprint -subject -issuer -serial -hash -noout >c_rehash . getting this warning: > > Doing . > WARNING: mynewcertPrivateKey.pem does not contain a certificate or CRL: skipping > mynewcertCert.pem => 2764d17c.0 Now I have noted two things: 1) the fingerprint generated from the openssl command above is different when I run it on centos or on suse 10.1. Why? 2) if I run fetchmail here with these options: I get: fetchmail: 6.3.2 querying my.remote.server (protocol POP3) at Tue 13 Jun 2006 07:22:34 PM CEST: poll started fetchmail: Issuer Organization: The M Zone fetchmail: Issuer CommonName: my.remote.server fetchmail: Server CommonName: my.remote.server fetchmail: my.remote.server key fingerprint: the one obtained running openssl on the server fetchmail: my.remote.server fingerprints match. fetchmail: Server certificate verification error: unable to get local issuer certificate 26227:error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed:s3_clnt.c:894: fetchmail: SSL connection failed. fetchmail: socket error while fetching from m-mail(a)fm.vm.bytemark.co.uk What is the "local issuer" problem? What am I missing? Is it a consequence of problem 1) ? What is happening, and what must I do to use this certificate? TIA, Marco -- Marco Fioretti mfioretti, at the server mclink.it Fedora Core 3 for low memory http://www.rule-project.org/ I don't even have an email address. I have reached an age where my main purpose is not to receive messages. U. Eco, quoted in the New Yorker

1 1

Restoring data from disk w/ messed up partition tables
by techlists＠comcast.net 13 Jun '06

13 Jun '06

I had the electricity go out the other day. When my Centos 4.3 workstation came up, I said yes when it got to the prompt "Unclean shutdown, force filesystem check?" prompt. It ground away for awhile and then said something about a bad superblock. Yikes! I thought, that's a bad sign. After a reboot, I got nothing but a grub> prompt. I tried booting into rescue mode using the install CD, and got a message "No valid partitions found". I tried to mount /dev/hda, and got a message "no /etc/fstab found". I tried running the install CD, and went into Disk Druid to see if it could see any existing partitions on the drive, and got the message "Partition table corrupted, must re-initialize disk, and reformat". Not a good sign. I backed out at that point, not wanting to go beyond a point of no return. I have about 4 years of archived e-mails, and some other misc stuff on that drive that I don't want to lose. Anyone have any suggestions what steps to take next? Paul

2 1

Any plans to update kernel-utils for newer smartmontools
by rik＠harddata.com 13 Jun '06

13 Jun '06

I have SATA drives and have found that the newest smartmontools package will retrieve smart data from SATA drives with the '-d ata' switch. Is there a devel/testing package of kernel-utils available or should I just roll my own? Rik

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Changing from dynamic ip to static ip
by Thomas E Dukes 13 Jun '06

13 Jun '06

Hello, I have been on a dynamic ip for about 5 years and have just upgraded to a static ip. I know I need to change my network setup on my eth0 nic to static and stop ddclient from trying to update my address but is there _really_ anything else I need to change. I have a couple of websites on this address using *:80 in my httpd.conf. I can easily change this but don't think it would really make any difference if I don't. Also, my ISP is using different lingo than what linux uses. I suspect they think everyone runs Windoze. Can anyone decipher this for me, my ISP tech support has already gone for the day. IP Addresses: 71.30.117.0/30 Netmask: 255.255.255.252 Router IP: 71.30.117.1 <--------------- This Useable IP's: 71.30.117.2 <--------------- and this My ip address, if I do an ifconfig, is 71.30.117.1. This has me a little confused as they tell me my ip address is 71.30.117.2 TIA

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Help debugging superodoctor
by Sam Drinkard 13 Jun '06

13 Jun '06

I've tried several times to get superOdoctor to run on this machine, and have had no luck yet. Aside from this error message, # superodoctor ***************************************************************************** Supero Doctor II - Linux version 2.24(060523) Copyright(c) 1993-2006 by Super Micro Computer, Inc. http://supermicro.com/ ***************************************************************************** (superodoctor:7713): GnomeUI-WARNING **: While connecting to session manager: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed. The application appears to open, then just crashes, never producing any output or anything. I've included a backtrace, just in case someone could help me out. The thing that worries me is the lib64/tls/libpthread.so.0. That same library gave me problems when I was setting up the WRF weather model to run, and was forced to use LD_ASSUME_KERNEL = 2.4 in order to get it to run. I tried the same trick with superodoctor, but did not work. Any and all help appreciated... I've sent requests for help to super micro, but have not gotten any response from them. This is an x86_64 machine, and the version of superodoctor is for the x86_64. AFIK, the installation was OK, with no problems. Regards, Sam Backtrace was generated from '/usr/sbin/superodoctor' Using host libthread_db library "/lib64/tls/libthread_db.so.1". [Thread debugging using libthread_db enabled] [New Thread 182894241344 (LWP 6993)] 0x0000003b4b00bfc4 in waitpid () from /lib64/tls/libpthread.so.0 #0 0x0000003b4b00bfc4 in waitpid () from /lib64/tls/libpthread.so.0 #1 0x000000375d458c04 in libgnomeui_module_info_get () from /usr/lib64/libgnomeui-2.so.0 #2 <signal handler called> #3 0x0000003b4a5706c3 in strstr () from /lib64/tls/libc.so.6 #4 0x000000000042e8f8 in smbus_byte_data_read (bustype=0, smb_base_io_addr=4352, slave=47, offset=40, data=0x7fbffff45c) at smbus.c:636 #5 0x000000000042c00f in get_item_reading (sThis_System=0x63e010, thisitem=0x63e480, parameters=0x63f910, iParameter_Count=38, cRet=0x7fbffff4f0 "0§s") at sd.c:2131 #6 0x000000000040b411 in create_SD_Table (sThis_System=0x63e010, spItem=0x63e480, iItem_Count=19, spParameter=0x63f910, iParameter_Count=38) at main.c:1798 #7 0x000000000040c146 in main (argc=7007456, argv=0x6aece0) at main.c:2471 Thread 1 (Thread 182894241344 (LWP 6993)): #0 0x0000003b4b00bfc4 in waitpid () from /lib64/tls/libpthread.so.0 No symbol table info available. #1 0x000000375d458c04 in libgnomeui_module_info_get () from /usr/lib64/libgnomeui-2.so.0 No symbol table info available. #2 <signal handler called> No symbol table info available. #3 0x0000003b4a5706c3 in strstr () from /lib64/tls/libc.so.6 No symbol table info available. #4 0x000000000042e8f8 in smbus_byte_data_read (bustype=0, smb_base_io_addr=4352, slave=47, offset=40, data=0x7fbffff45c) at smbus.c:636 errNo = 0 i = 0 init_done = -1 res = 0 file = 0 filename = '\0' <repeats 19 times> test_addr = 1685017119 #5 0x000000000042c00f in get_item_reading (sThis_System=0x63e010, thisitem=0x63e480, parameters=0x63f910, iParameter_Count=38, cRet=0x7fbffff4f0 "0§s") at sd.c:2131 iRet = 0 dataH = 0 dataL = 0 data = 0 errNoL = 10154652 errNo = 0 div = 1 bitmask = 4406925 _v = 0 '\0' #6 0x000000000040b411 in create_SD_Table (sThis_System=0x63e010, spItem=0x63e480, iItem_Count=19, spParameter=0x63f910, iParameter_Count=38) at main.c:1798 thisitem = (ITEMS *) 0x63e480 spSD_Table = (SD_TABLE *) 0x9af270 i = 0 div = 0 errNo = 0 Read = "0§s\000\000\000\000\0000§" High = "0§s\000\000\000\000\000®Q" Low = "0§s\000\000\000\000\000û%" #7 0x000000000040c146 in main (argc=7007456, argv=0x6aece0) at main.c:2471 app1 = (GtkWidget *) 0x6aece0 about2 = (GtkWidget *) 0x0 windowAlertMessage = (GtkWidget *) 0x73a730 arg = 6853872 interval = 400 bReset_Status = 0 cpStatus = 0x0 sThis_System = (SYSTEM_VARS *) 0x63e010 spItem = (ITEMS *) 0x63e480 spParameter = (PARAMETERS *) 0x63f910 iItem_Count = 19 cMB_Manufacturer = "Supermicro", '\0' <repeats 19 times> cMB_Product = "X6DA8", '\0' <repeats 24 times> cMB_Version = "PCB Version", '\0' <repeats 18 times> spSD_Table = (SD_TABLE *) 0x73a730

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SSL: Server CommonName mismatch: localhost.localdomain
by M. Fioretti 13 Jun '06

13 Jun '06

Greetings, I have seen via google that this very problem was already discussed on several lists some months ago, but the archives report no solution. I have a remote server with dovecot 1.0-0_12.beta8 on Centos 4.3. IMAP works just fine: I can read email from both Squirrelmail via web and Kmail. Now I have created an ssl certificate on the server, and I'm trying to retrieve email via pop3s from my home PC (running suse, if this matters) When I launch fetchmail here at home I get the error below. Is it caused by dovecot, or something else on the server, like some error I could have made when generating and copying certificates? TIA, Marco marco@polaris:~> fetchmail -vv fetchmail: 6.3.2 querying my.vps.fqdn.name (protocol POP3) at Tue 13 Jun 2006 05:22:50 PM CEST: +poll started fetchmail: Issuer Organization: SomeOrganization fetchmail: Issuer CommonName: localhost.localdomain fetchmail: Server CommonName: localhost.localdomain fetchmail: Server CommonName mismatch: localhost.localdomain != my.vps.fqdn.name fetchmail: my.vps.fqdn.name key fingerprint: 20:93:B4:D8:CB:75:AD:72:F6:00:A8:DC:CE:F2:53:6E fetchmail: my.vps.fqdn.name fingerprints do not match! 23942:error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify +failed:s3_clnt.c:894: fetchmail: SSL connection failed. fetchmail: socket error while fetching from remoteuser(a)my.vps.fqdn.name -- Marco Fioretti mfioretti, at the server mclink.it Fedora Core 3 for low memory http://www.rule-project.org/ Only boring people ever get bored Anonymous ----- End forwarded message ----- -- Marco Fioretti mfioretti, at the server mclink.it Fedora Core 3 for low memory http://www.rule-project.org/ There is hopeful symbolism in the fact that flags do not wave in a vacuum. -- Arthur C. Clarke

2 4

Re: Re: [CentOS] Changing from dynamic ip to static ip
by edukes＠alltel.net 13 Jun '06

13 Jun '06

> > From: "Joshua Gimer" <jgimer(a)gmail.com> > Date: 2006/06/13 Tue AM 08:39:36 EDT > To: "CentOS mailing list" <centos(a)centos.org> > Subject: Re: [CentOS] Changing from dynamic ip to static ip > > IPADDR=71.30.117.2 > NETMASK=255.255.255.252 > NETWORK=71.30.117.0 <http://71.30.117.0/30> > GATEWAY=71.30.117.1 > > Add this to your /etc/sysconfig/networking/devices/ifcfg-eth0 > And take out > > BOOTPROTO=dhcp Great! Thanks, Eddie > > On 6/13/06, Thomas E Dukes <edukes(a)alltel.net> wrote: > > > > > > > > > -----Original Message----- > > > From: centos-bounces(a)centos.org > > > [mailto:centos-bounces@centos.org] On Behalf Of William L. Maltby > > > Sent: Tuesday, June 13, 2006 7:41 AM > > > To: CentOS General List > > > Subject: Re: [CentOS] Changing from dynamic ip to static ip > > > > > > On Mon, 2006-06-12 at 18:53 -0400, Thomas E Dukes wrote: > > > > Hello, > > > > > > > > I have been on a dynamic ip for about 5 years and have just > > > upgraded > > > > to a static ip. > > > <snip> > > > > > > I almost didn't mention it because it's so common a concern > > > now, but just in case. > > > > > > Static IP gives attackers a lot more leeway in their attempts > > > to penetrate. Be sure your firewall (from ISP and iptables on CentOS > > > machine) are now appropriate for your situation. With port 80 > > > open, make sure your server stuff is kept up-to-date with > > > security fixes. Make sure all services not needed are > > > disabled. TCP wrappers (hosts.deny and > > > hosts.allow) are up to snuff. > > > > Hi Bill, > > > > Thanks, > > > > Yes, I have a firewall setup and also use denyhosts and fail2ban. > > > > Thanks > > > > > > HTH > > > -- > > > Bill > > > > > > > > > _______________________________________________ > > CentOS mailing list > > CentOS(a)centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > > > -- > Thx > Joshua Gimer > > _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

1 0

Centos 4.3 & drbd
by centos＠bathnetworks.com 12 Jun '06

12 Jun '06

Hiya, I'm new to Centos but learning rapidly but I have been using FreeBSD. I'm trying to setup a HA NFS server using 2 machines. Both machines are running 4.3 updated to the latest via Yum. I did yum groupinstall drbd-heartbeat and yum install kernel-module-drbd-kernel-module-drbd-2.6.9-34.EL to match my kernel. The problem I have is that on 1 machine drbd works fine, but when I start drbd on the other I get an error: Starting DRBD resources: [ d0 ioctl(,SET_DISK_CONFIG,) failed: Invalid argument Lower device is already mounted. cmd /sbin/drbdsetup /dev/drbd0 disk /dev/hde1 internal -1 failed! It is not mounted as far as I can tell - df -a only shows /dev/hda and fstab has no entry for /dev/hde1. I have also tried deleting the partion with parted and recreating it. I have also tried using just /dev/hde. The /etc/drbd.conf is: resource drbd0 { protocol C; on fs1.bathnetworks.local { device /dev/drbd0; disk /dev/hde1; address 10.0.0.1:7788; meta-disk internal; } on shorty.bathnetworks.local { device /dev/drbd0; disk /dev/hdc1; address 10.0.0.2:7788; meta-disk internal; } } fs1 is the machine I am having trouble with. Any help with fixing this would be appreciated. Rob

3 4

even if I do not choose the Xwindows it still installs x ?
by Sentissi, Mohamed 12 Jun '06

12 Jun '06

Hello there I chose not to install the Xwindows and it still did ? a very minimal one (maybe xfce) any idea why ? I installed version 4 Thanks

3 2

Root filesystem is suddenly mounted read-only
by Alfred von Campe 12 Jun '06

12 Jun '06

This is very strange. Everything was running fine Friday night. This morning I walk into work and find that my root file system (which is actually the only filesystem besides /boot) is not writable. Yet mount thinks it's mounted read/write: # mount /dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw) [snip] # touch foo touch: cannot touch `foo': Read-only file system Anyone else seen this? This is on a relatively recently fresh CentOS 4.3 install. Alfred

2 2

Problems with csgfs after update
by C. L. Martinez 12 Jun '06

12 Jun '06

Hi all, Today I have update Centos cluster suite and my test cluster does not startup. When ccsd service tries to start returns this error: [root@srvimss1 lib]# ccsd Failed to connect to cluster manager. Hint: Magma plugins are not in the right spot. When I run magma_tools config plugindir returns me this setup: /lib/magma. This directory does not exists. How can I fix this problem??? Somebody have this problem?? Many thanks. -- C.L. Martinez clopmart(a)gmail.com

1 0

Failed VNC Install
by Brett Serkez 11 Jun '06

11 Jun '06

Installing a new system, I launched the install: linux vnc I was then able to connect with a VNC client and run the install, really cool. All went well until the actual installation started. I saw the formatting of the swap partition, then the root file system and then I was suddenly disconnected. On the console was the following message: *** glibc detected *** double free or corruption (!prev): 0x09baf620 *** install exited abnormally Any ideas as to what to look for? Has anyone used the VNC installation with V4.3? Thanks! Brett

2 2

Deleted my PATH
by Niels Przybilla 11 Jun '06

11 Jun '06

Hi, I have been logged in as root, and it seems to me that i destroyed all my PATh Variables. How can I restore them ? Thnaks for your help and best regards Niels

2 1

PXE booting HP BL25p - Smart Array extended bios data area problem
by Miskell, Craig 11 Jun '06

11 Jun '06

Hi, I recently took delivery of a bunch of HP BL25p blades to add to my collection. I am attempting to install Centos4 x86_64 using PXE - the initial PXE DHCP stuff works, and the kernel and initrd are downloaded, but the server then immediately clears the screen and displays: "1706-Smart Array Controller Extended BIOS Data Area Memory Corrupted Array Controller Interrupt 14h BIOS Cannot Continue System Halted" It's pretty obvious what the problem probably is (the kernel nukes some bit of memory that it shouldn't, or that the smart array hasn't properly marked as reserved), but I don't know what to do to fix it. I have also tried: 1) The i386 kernel and initrd images 2) The RedHat AS4 kernel/initrd images 3) The Centos3 i386 kernel and initrd images 4) Downgrading the System ROM BIOS and Smart Array BIOS (as shipped it had the latest versions) to versions up to a year old. 5) Playing with memmap to exclude mem from 610-640K from being used by the kernel. Booting from CD works, but is suboptimal (I have to type the kernel kickstart options, and I don't want to have to do that 16 times, plus I want easy repeatability in future). Google has been fairly silent on the issue. Does anyone have any suggestions for what else I could try/prod/poke? Thanks, Craig Miskell, Technical Support, AgResearch Invermay 03 489-9279 "The two rules for success: 1. Don't tell people everything you know." - Anon. Please accept my abject apologies for the awful mess of a legal disclaimer which follows. Not my choice ;-( ======================================================================= Attention: The information contained in this message and/or attachments from AgResearch Limited is intended only for the persons or entities to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipients is prohibited by AgResearch Limited. If you have received this message in error, please notify the sender immediately. =======================================================================

3 7

Old (really old) programs under CentOS.
by Lamar Owen 11 Jun '06

11 Jun '06

Ok, I have a small dilemma, and I'm hoping someone here has had to do this before. I have at a site (not PARI) a server running some mission critical software that was written in 1997 for libc5, under AOLserver 2.3. No, source code is not available for that version of AOLserver (it wasn't open-sourced until version 3.0, and the API changed rather dramatically at that point), not that it would help any, as gcc has undergone so many changes since RH5 that a recompile would be very difficult. The software is currently running on Redhat 5.2 (don't laugh; it's got a 2,716-day uptime right now! (yes, that's over 7 years!)) with the libc5 libs loaded. The server hardware is just about ready to fly apart, and I need to see about running this on more modern hardware. Of course, they already have bought the replacement server, a Dell PowerEdge 1850. No way RH 5.2 is going to load on a PE1850 with the megaraid PERC 4e/Si. Now, I've thought about a couple of possibilities: 1.) QEMU or VMware or similar running a RH5.2 instance under CentOS 4; 2.) Running a libc5 setup on CentOS 4. I'd rather do this, as security fixes would at least be available. Going back to a RH5 machine and working was a real trip; had to use telnet (no ssh on RH5); Kernel 2.0 is still there, no yum, no chkconfig/service subsystem, etc. The custom code is written specifically for AOLserver 2.3 in its tcl dialect and using API functions that don't exist in AOLserver 3.0 or later (or it would be a snap to compile AOLserver 4.0.10 on CentOS4 and roll); there's a couple hundred thousand lines of tcl code here, and while they will be contracting a replacement webapp using Plone/Zope, they aren't ready to transition as yet. -- Lamar Owen Director of Information Technology Pisgah Astronomical Research Institute 1 PARI Drive Rosman, NC 28772 828-862-5554 www.pari.edu

4 8

Problem with dual-booting soft-RAID
by Kai Schaetzl 11 Jun '06

11 Jun '06

I set up IDE software-RAID on a test machine for testing the recover functionality. The problem is that it somehow won't boot after removing the first disk, although grub etc. seems to be setup okay. Here's some background: 2 disks hda and hdb RAID 1 setup: /dev/md0 (hda1 + hdb1) /boot /dev/md1 (hda2 + hdb2) / /dev/md2 (hda3 + hdb3) swap done with disk druid during initial setup from server disk, so far so good. Then I installed grub to hdb. grub-install complained all the time (I may have given it the wrong parameter), so I used grub directly: root (hd1,0) setup (hd1) That's correct, isn't it? (Is there a way to determine if grub is installed on the correct disk?) I added a third boot entry to the grub.conf (see below). I then removed disk 1 (hda) from the array by unpowering it and rebooted. Unfortunately, that sent me right in the BIOS PXE boot instead of trying the other disk, well, that's a BIOS problem. So I repowered disk 1 and rebooted. The grub on it is still working somehow but just fills the screen with "grub". So I moved disk 2 before disk 1 as a boot device in BIOS and tried again. This time I get a grub prompt. So, grub is obviously correctly installed on it. However, why doesn't it then boot? When I type in the exact same data that I have in grub.conf it boots. I resynced the disks now, but still can't boot normally. grub.conf is like this (taken from another non-RAID, full setup grub.conf and adjusted, so it differs cosmetically): default=0 fallback=2 timeout=10 #splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.9-34.0.1.EL) root (hd0,0) kernel /vmlinuz-2.6.9-34.0.1.EL ro root=/dev/md1 initrd /initrd-2.6.9-34.0.1.EL.img title CentOS-4 Server_CD (2.6.9-34.EL) root (hd0,0) kernel /vmlinuz-2.6.9-34.EL ro root=/dev/md1 initrd /initrd-2.6.9-34.EL.img title CentOS 2 (2.6.9-34.0.1.EL) root (hd1,0) kernel /vmlinuz-2.6.9-34.0.1.EL ro root=/dev/md1 initrd /initrd-2.6.9-34.0.1.EL.img When I change default to 2 it still doesn't boot, just gets me grub. I then reinstalled grub on the resynced hda with the same commands used earlier (adjusted for it, of course) and rebooted with hda as first boot disk. There's still the same behavior as before: booting from hda gives "grub grub grub ...". So, none of two boots like it should. disk 1 cannot boot at all, although resynced and disk 2 only manually. What could be the problem? Kai

7 20

RE: [CentOS] Tape drive throughput
by Bowie Bailey 11 Jun '06

11 Jun '06

Rodrigo Barbosa wrote: > On Fri, Jun 09, 2006 at 03:56:36PM -0400, Bowie Bailey wrote: > > I have a backup spooling onto a DLT drive. Is there any tool that > > will let me monitor the data throughput on the device? > > Throughput on a tape drive is very variable, depending on how you are > writing/reading the data to it. > > So for some meaningful numbers, you would need your backup solution > to provide them. I'm just looking for raw bps flowing to the device. I don't really care about compression and such at the moment, I just want a rough idea of what the drive is doing. -- Bowie

5 14

ServerCD for x86_64
by Lazy 11 Jun '06

11 Jun '06

I can't find it. I checked several mirrors without any luck. There was one in 4.2 days but now it's gone. Will there be one for 4.3 ? -- Michal

1 0

rhel source rpms
by bruce 10 Jun '06

10 Jun '06

hi... new to centos, but i have a few questions... i understand that centos is a derivative of rhel, created from the exact/underluing source files used to create rhel. if this is the case, is it possible to get the actual source SRPMS for either RHEL, or for CentOS? I used to see the source files on the redaht system, but I don't seem to see them anymore... i'm curious to know what's better, using CentOS, or the latest fedora FC version... thanks -bruce bedouglas(a)earthlink.net

4 4

CentOS folding@home team
by Sharon Kimble 10 Jun '06

10 Jun '06

Congratulations to the CentOS folding@home team for breaking through the rank 400 barrier. The next target is the rank 250 :) More information about the team can be found at http://www.sharons.org.uk/cf.html, and we welcome new members and their machines. We always need more members and more machines too :) Sharon. -- 18:47:57 up 8 days, 20:56, 2 users, load average: 1.30, 1.76, 1.61 A taste of linux http://www.sharons.org.uk/taste/index.html efever http://www.efever.blogspot.com/ Centos 4.3, KDE 3.5.2-7.0, OpenOffice 2.0.2 Registered Linux user 334501

6 5

CentOS-announce Digest, Vol 16, Issue 4
by centos-announce-request＠centos.org 10 Jun '06

10 Jun '06

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-2006:0486 Moderate CentOS 3 i386 mailman - security update (Tru Huynh) 2. CESA-2006:0486 Moderate CentOS 3 x86_64 mailman - security update (Tru Huynh) 3. CESA-2006:0544 Moderate CentOS 4 x86_64 mysql - security update (Johnny Hughes) 4. CESA-2006:0544 Important CentOS 4 i386 mysql - security update (Johnny Hughes) 5. CESA-2006:0486 Moderate CentOS 4 x86_64 mailman - security update (Johnny Hughes) 6. CESA-2006:0486 Moderate CentOS 4 i386 mailman - security update (Johnny Hughes) 7. CESA-2006:0486 Moderate CentOS 3 ia64 mailman - security update (Pasi Pirhonen) 8. CESA-2006:0486 Moderate CentOS 4 axp mailman - security update (Pasi Pirhonen) 9. CESA-2006:0486 Moderate CentOS 4 ia64 mailman - security update (Pasi Pirhonen) 10. CESA-2006:0486 Moderate CentOS 3 s390(x) mailman - security update (Pasi Pirhonen) 11. CESA-2006:0486 Moderate CentOS 4 s390(x) mailman - security update (Pasi Pirhonen) 12. CESA-2006:0544 Importatnt CentOS 4 ia64 mysql - security update (Pasi Pirhonen) 13. CESA-2006:0544 Importatnt CentOS 4 alpha mysql - security update (Pasi Pirhonen) 14. CESA-2006:0544 Importatnt CentOS 4 s390(x) mysql - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Fri, 9 Jun 2006 17:53:56 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2006:0486 Moderate CentOS 3 i386 mailman - security update To: centos-announce(a)centos.org Message-ID: <20060609155356.GA26670(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2006:0486 mailman security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2006-0486.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/mailman-2.1.5.1-25.rhel3.5.i386.rpm source: updates/SRPMS/mailman-2.1.5.1-25.rhel3.5.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update mailman Tru -- Tru Huynh (CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

1 0

iptables rules
by Abd El-Hameed Ayad 10 Jun '06

10 Jun '06

Hi, I have 2 CentOS servers 82.201.195.123 & 62.139.61.84 I want to deny all ssh logins on port 22 on (62.139.61.84) from any host except from (82.201.195.123) Can anybody tell me such iptables rules to write in /etc/sysconfig/iptables Currently, im using the following rules (on 62.139.61.84) *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -i eth1 -j ACCEPT -A RH-Firewall-1-INPUT -i eth0 -s 82.201.195.123 -j ACCEPT -A RH-Firewall-1-INPUT -m tcp -p tcp --dport 22 -j REJECT -A RH-Firewall-1-INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -i eth0 -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT But i found that somebody is bypassing these rules & trying to authenticate with unknown (or wrong password) accounts Thanx in advance

5 4

Virtualhost, Alias & Subdomains
by Dave J. Hornford 10 Jun '06

10 Jun '06

I am having a problem with subdomains, alias & virtual hosts Centos 4.3, Apache 2.0.52 & PHP 5.04 I can get the primary to work, but not the aliased servers. http.conf extract ********* NameVirtualHost * <VirtualHost *> ServerName www.domain.com DocumentRoot /var/www/html/domain/ ServerAlias www.altdomain.com <http://www.altdomain.com> </VirtualHost> <VirtualHost *> ServerName subdomain.domain.com DocumentRoot /var/www/html/subdomain/ ServerAlias www.subdomain.altdomain.com <http://www.subdomain.altdomain.com> </VirtualHost> ********** dave

5 10

Mouse problems
by Mace Eliason 09 Jun '06

09 Jun '06

Hi I am running Centos 4.3 and I having irratic problems with my mouse. I have the same problems with other versions of centos as well. I have search and tried everything that I could find but still it's not working right. It is a new microsoft laser wireless mouse 6000 For the most part it seems to work okay but it the buttons seem to click on there own a you move the mouse. For example if I click on the menu it drops down as long as the mouse is moving down the menu its fine as soon as I stop it loads what ever progam the mouse is on. Clicking has problems to some time you have to click serveral times to get it to work. Or you click a check box and when you move the mouse off the check box it un checks. I have check the X config file and it is set to what is suggested for usb mice. Any one have similar problems. If I plug in a regular optical usb mouse it works just fine. Mace

2 1

RE: [CentOS] Tape drive throughput
by Bowie Bailey 09 Jun '06

09 Jun '06

Rodrigo Barbosa wrote: > On Fri, Jun 09, 2006 at 04:15:38PM -0400, Bowie Bailey wrote: > > Rodrigo Barbosa wrote: > > > On Fri, Jun 09, 2006 at 03:56:36PM -0400, Bowie Bailey wrote: > > > > I have a backup spooling onto a DLT drive. Is there any tool > > > > that will let me monitor the data throughput on the device? > > > > > > Throughput on a tape drive is very variable, depending on how you > > > are writing/reading the data to it. > > > > > > So for some meaningful numbers, you would need your backup > > > solution to provide them. > > > > I'm just looking for raw bps flowing to the device. I don't really > > care about compression and such at the moment, I just want a rough > > idea of what the drive is doing. > > There is no such thing. You "raw bps" will vary greatly depending on > your blocksize and other factors. I don't follow. The backup program is writing data to the device. Regardless of how complex that data stream is, there is a specific amount of data that is transmitted in a given period of time. This would be like sticking a meter inline on an ethernet cable and simply counting bits. There may or may not be a tool to do this and it may or may not be a useful measurement, but it should be possible. -- Bowie

2 1

Tape drive throughput
by Bowie Bailey 09 Jun '06

09 Jun '06

I have a backup spooling onto a DLT drive. Is there any tool that will let me monitor the data throughput on the device? -- Bowie

2 1

custom cd's
by Michel 09 Jun '06

09 Jun '06

I'm looking for a script or some tool that enables me to create custom iso's for centos 4.3 I'l also need tools to build some custom rpm's. What i want to do is create a cd that will install centos 4.3 fully updated (at the time of cd creation) together with self created rpm's of ispconfig.

5 11

shadow file question
by Feizhou 09 Jun '06

09 Jun '06

There is this * in the password field of the shadow file for certain accounts. I know that the ! is to indicate a locked account but what does a * mean? man 5 shadow does not reveal anything.

4 9

SuperOdoctor for super-micro
by Sam Drinkard 09 Jun '06

09 Jun '06

Rats... found some hardware monitoring from the vendor and it's broken, or I'm missing some pieces. No mention of CentOS specifically, but RH is supported, so figured it *ought* to work. I'm apparently missing a library -- liblinc.so.1, and a net search reveals several sources, both for x86 and 64-bit. Tried them both, after the x86 did not work, and the 64-bit I thought was going to work, but it crashes the application under gnome, and under text. Yes, I did the bad thing (tm) and installed an rpm not from yum, and now, I can't seem to make rpm remove it. Says it's not installed, but it is. Rebuilt the database and still says it's already installed when I tried to reinstall it, but says it's NOT installed when I try to remove it ...hmmmph. I know where the rm -f keys are :-) Question to the gang. Anybody have this software working on a supermicro board, and if so, what did you do to get it going? Thanks... -- Sam W.Drinkard -- sam(a)wa4phy.net http://wa4phy.net Augusta Area Mesonet cell 706.825.8513 Home 706.868.7253 MAIL 4428 Branchwood Drive, Martinez Georgia, 30907-1304

6 9

yum list updates error
by Melinda Odom 09 Jun '06

09 Jun '06

Hi, I get this error when running yum list updates [root@godslove etc]# yum list updates Gathering header information file(s) from server(s) Server: CentOS-3 - Base retrygrab() failed for: http://mirror.centos.org/centos/3/os/i386/headers/header.info Executing failover method failover: out of servers to try Error getting file http://mirror.centos.org/centos/3/os/i386/headers/header.info [Errno 4] IOError: <urlopen error > Sincerely, Melinda Odom www.designhosting.biz 479-471-0891 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.8.3/359 - Release Date: 6/8/2006

3 2

mdadm raid 1 question
by William Warren 09 Jun '06

09 Jun '06

Does Centos 4.2 have the grub issue where the boot loader does not get installed onto both hard disks in a software Raid 1 environment? if so does 4.3 solve that issue? -- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD. -- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician) Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/

3 2

Intel Xeon and hyperthreading
by Sam Drinkard 08 Jun '06

08 Jun '06

Another question some of you may help me make decisions on. I've been doing some reading that indicates that having HT turned on in this dual xeon machine might actually slow down the computing process rather than speeding it up. I rebooted this a.m., and turned HT off, just prior to my main application run. One thing that might be of note, this application is using OMP for utilizing both cpu's, and prior to turning off HT, I had been running the software using 2 cpu's of the 4 that the OS sees. I'm waiting on a model run to finish to see if there is any appreciable difference, but the one thing I do notice right off is cpu utilization is running close to 100% on both, where before, it averaged maybe 50% or thereabouts. Again, sar is showing at last count, 83.56% utilization for user, 10.27% system and only 0.02% nice. Idle was 5.74%. I'm attempting to squeeze every last bit of processing power out of this machine, and would entertain suggestions on tuning if there happen to be any types of tuning that would help. Sam -- Sam W.Drinkard -- sam(a)wa4phy.net http://wa4phy.net Augusta Area Mesonet cell 706.825.8513 Home 706.868.7253 MAIL 4428 Branchwood Drive, Martinez Georgia, 30907-1304

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