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VNC Question
by James Bensley 26 Oct '10

26 Oct '10

Hi Everybody :) I'm sorry if this is unwanted noise but I'm struggling to find the answer to what is probably a ridiculously simply problem. Setup vncserver but it likes to run as a user (reading parameters from ~/.vnc/xstartup of the user the process runs as). When I start vncserver and connect in I am dropped into a running copy of X of that users desktop, how can I instead have it display the login screen instead? -- Regards, James. http://www.jamesbensley.co.cc/ There are 10 kinds of people in the world; Those who understand Vigesimal, and J others...?

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graphics driver
by Ritika Garg 26 Oct '10

26 Oct '10

I did installation of CentOS5.5 in text mode and made changes at the following places in the file /etc/X11/xorg.conf : section "device" identifier : "vesa" driver:"vesa" section "screen" device:"vesa" Also in the file /etc/inittab I changed id:3:initdefault to id:5:initdefault so that I can boot linux in graphical mode. I had to make the changes in xorg.conf because the visibility of the graphics was so poor that it was impossible to work. The installation was done on Dell Inspiron N5010 with the chipset: Intel(R) HM57 Express chipset LPC interface controller 3B0B which is a part of Mobile intel 5 series The video controller is: Intel (R) HD Graphics Although graphics is there but the resolution and refresh rate are limited to 1024*768 and 0Hz, so I need to find the video driver. I had given "i810" in xorg.conf but that didn't work. Which driver is recommended?

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install older version of glibc package
by Sherin George 26 Oct '10

26 Oct '10

Hello Guys, Recently, I have installed some custom packaged of glibc in servers I manage due to vulnerabilities. At that time, official centos packages were not available. Now, I want to roll back to centos versions. ===================================== -bash-3.2# yum info glibc Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: yum.singlehop.com * base: yum.singlehop.com * extras: mirrors.netdna.com * rpmforge: apt.sw.be * updates: yum.singlehop.com Installed Packages Name : glibc Arch : i386 Version : 2.5 Release : 49.1 Size : 22 M Repo : installed Summary : The GNU libc libraries. License : LGPL Description: The glibc package contains standard libraries which are used by : multiple programs on the system. In order to save disk space and : memory, as well as to make upgrading easier, common system code is : kept in one place and shared between programs. This particular package : contains the most important sets of shared libraries: the standard C : library and the standard math library. Without these two libraries, a : Linux system will not function. Name : glibc Arch : x86_64 Version : 2.5 Release : 49.1 Size : 26 M Repo : installed Summary : The GNU libc libraries. License : LGPL Description: The glibc package contains standard libraries which are used by : multiple programs on the system. In order to save disk space and : memory, as well as to make upgrading easier, common system code is : kept in one place and shared between programs. This particular package : contains the most important sets of shared libraries: the standard C : library and the standard math library. Without these two libraries, a : Linux system will not function. Available Packages Name : glibc Arch : i686 Version : 2.5 Release : 49.el5_5.6 Size : 5.3 M Repo : updates Summary : The GNU libc libraries. License : LGPL Description: The glibc package contains standard libraries which are used by : multiple programs on the system. In order to save disk space and : memory, as well as to make upgrading easier, common system code is : kept in one place and shared between programs. This particular package : contains the most important sets of shared libraries: the standard C : library and the standard math library. Without these two libraries, a : Linux system will not function. ===================================== I tried a lot of options. "yum downgrade" is attempting to remove lot of packages which I can't afford. Yum install is hitting dependency errors. Is there a way out ? Thanks in advance for any help/advice any one could offer. -- Regards, Sherin

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Dell E6410
by Bo Lynch 26 Oct '10

26 Oct '10

Just recently bought a Dell E6410 with a Intel® HD Graphics with ExpressCard with I7-640m processor. Having some issues getting a graphical env to work. By just the looks of lspci X is wanting to use the VGA Compatable controller: Intel Corp Core Processor Intergrated graphics controller. Everything else is using Intel Corp Series 5/3400 Series Chipset. Has anyone else had any luck getting similar intel onboard grphics to work? -- Bo Lynch

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temp dir, httpd and selinux
by admin lewis 26 Oct '10

26 Oct '10

Hi, I have a php software installed on a centos server with selinux enforced activeted. The php software (glpi --> http://www.glpi-project.org) have a plugin that must write on a temp dir... but selinux dont give access to that dir to write. How should i do ? lewis

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Re: [CentOS] install older version of glibc package
by Sherin George 26 Oct '10

26 Oct '10

Thanks you so much Peter. I thought it is fixed in latest centos rpm. I got "custom packaged of glibc" from a third party(which I know as reliable) site. Do you have any information about availability of a patched replacement at this time? -- Regards, Sherin

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Maybe OT : strange wildcard behaviour
by Niki Kovacs 26 Oct '10

26 Oct '10

Hi, I'm currently working through some basic HOWTOS (Linux Fundamentals 1-4 by Gentoo founder Daniel Robbins) on a CentOS 5.5 server, just to keep in shape. I've just noticed a curious wildcard behaviour, which I can't really explain. Let's say I wanted to list all the files or directories in /tmp starting with any uppercase character. Normally, I would do this : $ ls -d /tmp/[A-Z]* Curiously enough, this command lists *all* the content of /tmp, consisting of a majority of files and directories starting with a *lowercase* character. I've tested this on two different machines, with the same results. I'm puzzled. Can anybody offer an explanation for this curious behaviour ? Cheers, Niki

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can't install mono-devel because mono-basic requires mono-core. But I have mono-core! What to do? I need gmcs.
by Aleksey Tsalolikhin 26 Oct '10

26 Oct '10

Hi. I'm trying to install gmcs so that I can build gbrainy, a mental exerciser. I am not sure what package provides, maybe mono-devel? however mono-devel fails to install because, it says, mono-basic requires mono-core. I have mono-core installed. Why is this failing? $ sudo yum install mono-devel.i386 ...-> Finished Dependency Resolution mono-basic-1.0.6-1.el5.rf.i386 from installed has depsolving problems --> Missing Dependency: mono-core = 1.0.6-1.el5.rf is needed by package mono-basic-1.0.6-1.el5.rf.i386 (installed) Error: Missing Dependency: mono-core = 1.0.6-1.el5.rf is needed by package mono-basic-1.0.6-1.el5.rf.i386 (installed) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest $ rpm -q mono-core mono-core-1.0.6-1.el5.rf $ Any suggestions? Thanks, -at

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more software raid questions
by fred smith 25 Oct '10

25 Oct '10

hi all! back in Aug several of you assisted me in solving a problem where one of my drives had dropped out of (or been kicked out of) the raid1 array. something vaguely similar appears to have happened just a few mins ago, upon rebooting after a small update. I received four emails like this, one for /dev/md0, one for /dev/md1, one for /dev/md125 and one for /dev/md126: Subject: DegradedArray event on /dev/md125:fcshome.stoneham.ma.us X-Spambayes-Classification: unsure; 0.24 Status: RO Content-Length: 564 Lines: 23 This is an automatically generated mail message from mdadm running on fcshome.stoneham.ma.us A DegradedArray event had been detected on md device /dev/md125. Faithfully yours, etc. P.S. The /proc/mdstat file currently contains the following: Personalities : [raid1] md0 : active raid1 sda1[0] 104320 blocks [2/1] [U_] md126 : active raid1 sdb1[1] 104320 blocks [2/1] [_U] md125 : active raid1 sdb2[1] 312464128 blocks [2/1] [_U] md1 : active raid1 sda2[0] 312464128 blocks [2/1] [U_] unused devices: <none> firstly, what the heck are md125 and md126? previously there was only md0 and md1.... ???? secondly, I'm not sure what it's trying to tell me. it says there was a "degradedarray event" but at the bottom it says there are no unused devices. there are also some messages in /var/log/messages from the time of the boot earlier today, but they do NOT say anything about "kicking out" any of the md member devices (as they did in the event back in August): Oct 19 18:29:41 fcshome kernel: device-mapper: dm-raid45: initialized v0.2594l Oct 19 18:29:41 fcshome kernel: md: Autodetecting RAID arrays. Oct 19 18:29:41 fcshome kernel: md: autorun ... Oct 19 18:29:41 fcshome kernel: md: considering sdb2 ... Oct 19 18:29:41 fcshome kernel: md: adding sdb2 ... Oct 19 18:29:41 fcshome kernel: md: sdb1 has different UUID to sdb2 Oct 19 18:29:41 fcshome kernel: md: sda2 has same UUID but different superblock to sdb2 Oct 19 18:29:41 fcshome kernel: md: sda1 has different UUID to sdb2 Oct 19 18:29:41 fcshome kernel: md: created md125 Oct 19 18:29:41 fcshome kernel: md: bind<sdb2> Oct 19 18:29:41 fcshome kernel: md: running: <sdb2> Oct 19 18:29:41 fcshome kernel: raid1: raid set md125 active with 1 out of 2 mir rors Oct 19 18:29:41 fcshome kernel: md: considering sdb1 ... Oct 19 18:29:41 fcshome kernel: md: adding sdb1 ... Oct 19 18:29:41 fcshome kernel: md: sda2 has different UUID to sdb1 Oct 19 18:29:41 fcshome kernel: md: sda1 has same UUID but different superblock to sdb1 Oct 19 18:29:41 fcshome kernel: md: created md126 Oct 19 18:29:41 fcshome kernel: md: bind<sdb1> Oct 19 18:29:41 fcshome kernel: md: running: <sdb1> Oct 19 18:29:41 fcshome kernel: raid1: raid set md126 active with 1 out of 2 mirrors Oct 19 18:29:41 fcshome kernel: md: considering sda2 ... Oct 19 18:29:41 fcshome kernel: md: adding sda2 ... Oct 19 18:29:41 fcshome kernel: md: sda1 has different UUID to sda2 Oct 19 18:29:41 fcshome kernel: md: created md1 Oct 19 18:29:41 fcshome kernel: md: bind<sda2> Oct 19 18:29:41 fcshome kernel: md: running: <sda2> Oct 19 18:29:41 fcshome kernel: raid1: raid set md1 active with 1 out of 2 mirrors Oct 19 18:29:41 fcshome kernel: md: considering sda1 ... Oct 19 18:29:41 fcshome kernel: md: adding sda1 ... Oct 19 18:29:41 fcshome kernel: md: created md0 Oct 19 18:29:41 fcshome kernel: md: bind<sda1> Oct 19 18:29:41 fcshome kernel: md: running: <sda1> Oct 19 18:29:41 fcshome kernel: raid1: raid set md0 active with 1 out of 2 mirrors Oct 19 18:29:41 fcshome kernel: md: ... autorun DONE. and here's /etc/mdadm.conf: # cat /etc/mdadm.conf # mdadm.conf written out by anaconda DEVICE partitions MAILADDR fredex ARRAY /dev/md0 level=raid1 num-devices=2 uuid=4eb13e45:b5228982:f03cd503:f935bd69 ARRAY /dev/md1 level=raid1 num-devices=2 uuid=5c79b138:e36d4286:df9cf6f6:62ae1f12 which doesn't say anything about md125 or md126,... might they be some kind of detritus or fragments left over from whatever kind of failure caused the array to become degraded? do ya suppose a boot from power-off might somehow give it a whack upside the head so it'll reassemble itself according to mdadm.conf? I'm not sure which devices need to be failed and re-added to make it clean again (which is all I had to do when I had the aforementioned earlier problem.) Thanks in advance for any advice! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- The Lord is like a strong tower. Those who do what is right can run to him for safety. --------------------------- Proverbs 18:10 (niv) -----------------------------

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POP3 server
by David 25 Oct '10

25 Oct '10

Hi folks A POP3 client not configured to keep a copy of messages on the server, as soon as retieve a message send a DELE commando with the number of the just retrieved message. Then, at the end of the POP3 session, the clent sends a QUIT command, wich order POP3 server to close the conection and delete the messages marqued with DELE command. So, I'm wondering if it's possible to tell Dovecot to actually delete the message when receiving a DELE command instead of marking it for deletion after the QUIT. Or is any other POP3 server capable of doing this other than Dovecot. (running on CentOS of course) Thanks David

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