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Best way to backup and entire machine??
by John Plemons 18 Sep '09

18 Sep '09

I want to mirror a Centos box, not having done this before, I'm looking for guidance. What is the best way to perform this task, I have a running webserver, a single external IP address to the website, and wanted to protect myself should the server go down. My though would be a mirror of that webserver, running in background, if the main server dies, then just move the mirror in place, change the IP and go on... Limiting down time... John Plemons

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program to hide X11 windows
by Jerry Geis 18 Sep '09

18 Sep '09

hi all I am looking for a program that will "hide" a window when it opens under X11. There is a program called devilspie but it requires gnome-panel to be running to work. On some of my workstations I dont have gnome-panel running. So I was wondering if there is a program like devilspie that does not require gnome-panel to be running to hide a program window. The window I am trying to hide is the openoffice impress window that edits the power point. I just want to show the power point. is there such a program or is there a better method to not show the edit window on impress and just show the power point. Thanks Jerry

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Re: [CentOS] gdm-simple-greeter config?
by David Fix 18 Sep '09

18 Sep '09

grep face /home/<username> -r :) -- David Fix Senior Systems Administrator Mr. X Inc. ----- Original Message ----- From: "m roth" <m.roth(a)5-cent.us> To: "CentOS mailing list" <centos(a)centos.org> Sent: Friday, September 18, 2009 9:01:27 AM Subject: Re: [CentOS] gdm-simple-greeter config? > Greetings, > > On Fri, Sep 18, 2009 at 8:34 AM, mark <m.roth(a)5-cent.us> wrote: >> itxakaserrano(a)gmail.com wrote: >>> Enviado desde mi iPhone >>> El 18/09/2009, a las 04:39, mark <m.roth(a)5-cent.us> escribiÃ³: >>>> R P Herrold wrote: >>>>> On Thu, 17 Sep 2009, mark wrote: >>>>> >>>>>> I have googled. I have find ...-exec grep. One server >>>>>> continues to send error messages to /var/log/messages that >>>>>> gdm-simple-greeter can't find some file in a user's (another >>>>>> admin, actually) home directory. Any ideas where it's >>>>>> getting it from? > > There are couple of directories starting with '.' (i.e. hidden ones) > pertaining to gnome .gconf, .gdm maybe you can find the answers there. > > /me putting up the sheild for hiding from "insufficient accuracy" missiles Yeah, I always alias ll="ls -laF", so they're never hidden from me. <g> Anyway, the situation is that users logging onto this system, as most of our systems, get their home directory automounted. However, this guy hasn't been on this system most of the time I've tried to find this error. Based on that, it's got to be somewhere in a *system* file, not in a home directory, yet it complains: gdm-simple-greeter[2361]: GLib-GIO-WARNING: Missing callback called fullpath = /home/<username>/.face#012 Now, I found /var/lib/gdm, and have looked under .config, .gconf, and .gconfd, and not found it. I have also killed the simple greeter, and it respawned, and started griping again. So, where is it storing this, and, more important, *WHY* is it caching this? Ideally, I'd like to not only clear whatever's causing it now, but also change the relevant system configuration file so that it doesn't happen again. mark _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Segmentation fault
by fous velkej 18 Sep '09

18 Sep '09

hi i've recently installed centos 5.3 on the machine. the installation went fine, but after that (on the first boot) it says a lot of segmentation fault errors fe. # yum Segmentation fault i've tried centos 5.2 and 5.0 also, but none of them works. but the centos 4.x works fine. could anyone tell me where the problem is? thanx a lot fous

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getting ftp log reports
by Dave 18 Sep '09

18 Sep '09

Hello, I'm running pure-ftpd on a centos 5.3 machine. I'm encountering a situation where i need to get log reports of user logins and logouts and tracking the files got, atempted anonymous user logins those should preferably go in to a firewall rule block list, and atempted hack ins, same thing as anonymous user logins. Can anyone suggest a package for creating and then emailing say 3 to 4 times a day reports of activity? Thanks. Dave.

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XEN and PCIPassthru
by janezkosmr 18 Sep '09

18 Sep '09

I have an old windows NT machine, that I would like to virtualize under CentOS and xen. The problem is, that the machine has an old PCI card that is used for some sensor control. I tried to google the topic, but there isn't any useful tutorial, how to do this under CentOS. What I found out is, that I need a machine that supports the Intel VT-d technology and at least XEN 3.3. Does someone on this list have any real world experience with this?

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domU: no audio device
by Aclhk Aclhk 18 Sep '09

18 Sep '09

i created a centos 5.3 hvm domU. i have tried any one of the following in the xen config without luck soundhw = "all" or "sb16" or "es1370" dom0: #virsh version Compiled against library: libvir 0.7.0 Using library: libvir 0.7.0 Using API: Xen 3.0.1 Running hypervisor: Xen 3.1.0 # uname -a Linux localhost.localdomain 2.6.18-128.4.1.el5xen # /usr/lib/xen/bin/qemu-dm -soundhw ? Valid sound card names (comma separated): -soundhw all will enable all of the above pls advise. Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多!

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Xen Kernel 2.6.18-164 and Hypervisor 3.3.1 problem.
by Ian Murray 17 Sep '09

17 Sep '09

Hi, I just upgraded the my Dom0 kernel on my Xen machine and it failed to boot. The hypervisor itself comes from the Gitco repository. I couldn't catch the exact reason, other than it said something about no proper root and failing to synch. It rebooted a second or so later and I can't seem to find the relevant log. As I learned from the other thread this is an early release of the kernel. Should I wait until the rest of the release catches up before trying to resolve this, or should I try now? Should I treat it as a Xen issue or a CentOS issue. The system boots fine on the non-Xen variant of the kernel and fin in the previous kernel Thanks in advance, Ian.

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Confusion about 32 vs 64 bit jre
by MHR 17 Sep '09

17 Sep '09

I ran a yum update yesterday and got the new kernel and other goodies, and I've rebooted and all seems to be well. Except, I just tried to run Firefox for the first time, and it wants a new jre (6.16). Now that's fine, except that I have a recollection of needing the 32-bit jre the last time I did this, but that's not working. I'm pulling down the 64-bit version, but I'm wondering if I need both, which, IIRC, does not work, or which one of the two? (I _am_ running the x86_64 OS and most apps.) What bothers me is that I've tried both, and apparently neither one works (!!!!). I installed by downloading the bin file (self-extracting rpm), and then running the bin with sudo. Where did I go wrong? mhr

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No login with kernel 2.6.18-164.el5
by Olaf Mueller 17 Sep '09

17 Sep '09

Hello, since kernel 2.6.18-164.el5 no user could login any more from nfs client into his home directory on nfs server. The kde error message is: "The following installation problem was detected while trying to start KDE: Writing to $HOME directory (/home/<USER>) failed with the error 'Permission denied' KDE is unable to start." /home is exported with nfs4 (gss/krb5), the password is delivered by nis. Everything works fine if I reboot the nfs server into the previous kernel 2.6.18-128.7.1.el5. Then it is completely irrelevant which kernel version the client has. So /home export by nfs4 works for client with kernel versions 2.6.18-164.el5 and 2.6.18-128.7.1.el5. If the nfs server runs under kernel 2.6.18-164.el5, the error messages for the user login process are (names for user, client and domain are replaced): /var/log/messages Sep 16 15:54:13 <NFS_CLIENT> gdm[3122]: run_session_child: »~/.xsession-errors« konnte nicht geöffnet werden Sep 16 15:55:02 <NFS_CLIENT> ntpd[2674]: synchronized to 192.168.0.1, stratum 14 Sep 16 15:57:14 <NFS_CLIENT> gdm[3122]: run_session_child: »~/.xsession-errors« konnte nicht geöffnet werden /var/log/secure Sep 16 15:57:14 <NFS_CLIENT> gdm[3122]: pam_unix(gdm:session): session opened for user <USER> by (uid=0) Sep 16 15:57:14 <NFS_CLIENT> sudo: pam_unix(sudo:auth): authentication failure; logname= uid=0 euid=0 tty= ruser= rhost= user=<USER> Sep 16 15:57:14 <NFS_CLIENT> sudo: pam_krb5[7339]: authentication fails for '<USER>' (<USER>@<DOMAIN>): Authentication failure (Decrypt integrity check failed) Strange files under /home/$USER: ---xrw--wT 1 <USER> <USER> 0 Jan 17 2038 SskWxq ---------- 1 <USER> <USER> 0 Jan 17 2038 .xsession-errors The following user processes are running on login error: startkde ssh-agent dbus-launch dbus-daemon kdeinit dcopserver klauncher kded kcminit_startup kwrapper ksmserver regards Olaf

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