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34753 discussions

NMAP - reveal MAC address
by Tom Brown 08 May '08

08 May '08

In CentOS 4 does anyone know the switches to get NMAP to reveal the MAC of the host being scanned ? I cant seem to find it and i am using nmap-4.20 - i am sure this was available somehow on older releases. thanks

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FOSS Inventory Managment and Invoicing Application
by Joseph L. Casale 08 May '08

08 May '08

I am trying to help a small shop migrate off an old DOS sales application and was hoping to find a Linux alternative. Anyone have any experience with these types of applications, it would likely be a 2-3 user setup. Thanks! jlc

3 2

Is it possible to lvrename the current root partition?
by Alfred von Campe 08 May '08

08 May '08

I'd like to rename my existing volume groups and logical volumes (I picked names a long time ago I no longer like :-). I recently stumbled across the lvrename and vgrename commands, but when I tried the former to rename the logical volume that my root partition resides on, the system became unbootable. In addition to renaming the LV (and VG if I decide to to that as well), what else needs to be changed? So far my list includes: o /etc/fstabb o /boot/grub/grub.conf o /dev/<vgname>/<lvnamex> o /dev/mapper/<vgname-lvnamex> I was hoping the lvrename and/or vgrename would take care of these details. Are there any scripts out there that take care of all the details? If not, I may write one (once I have the recipe to get this working, of course). Alfred

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CentOS-announce Digest, Vol 39, Issue 2
by centos-announce-request＠centos.org 08 May '08

08 May '08

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-2008:0211 Important CentOS 3 i386 kernel - security and bug fix update (Tru Huynh) 2. CESA-2008:0211 Important CentOS 3 x86_64 kernel - security and bug fix update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 7 May 2008 16:58:01 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2008:0211 Important CentOS 3 i386 kernel - security and bug fix update To: centos-announce(a)centos.org Message-ID: <20080507145801.GB6657(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2008:0211 kernel security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2008-0211.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/kernel-2.4.21-57.EL.i586.rpm updates/i386/RPMS/kernel-2.4.21-57.EL.i686.rpm updates/i386/RPMS/kernel-BOOT-2.4.21-57.EL.i386.rpm updates/i386/RPMS/kernel-doc-2.4.21-57.EL.i386.rpm updates/i386/RPMS/kernel-hugemem-2.4.21-57.EL.i686.rpm updates/i386/RPMS/kernel-hugemem-unsupported-2.4.21-57.EL.i686.rpm updates/i386/RPMS/kernel-smp-2.4.21-57.EL.i686.rpm updates/i386/RPMS/kernel-smp-unsupported-2.4.21-57.EL.i686.rpm updates/i386/RPMS/kernel-source-2.4.21-57.EL.i386.rpm updates/i386/RPMS/kernel-unsupported-2.4.21-57.EL.i586.rpm updates/i386/RPMS/kernel-unsupported-2.4.21-57.EL.i686.rpm updates/i386/RPMS/kernel-2.4.21-57.EL.athlon.rpm updates/i386/RPMS/kernel-smp-2.4.21-57.EL.athlon.rpm updates/i386/RPMS/kernel-smp-unsupported-2.4.21-57.EL.athlon.rpm updates/i386/RPMS/kernel-unsupported-2.4.21-57.EL.athlon.rpm source: updates/SRPMS/kernel-2.4.21-57.EL.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update kernel\* Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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total server lock-up during CentOS5.1 installation with vnc
by Wojtek Pilorz 08 May '08

08 May '08

Hi, I would like to share my experience with total server lock-up during CentOS5.1 installation using vnc installation method. My setup was as follows +--------------------------------------+ | my_PC, CentOS4.6 | | X, KDE, vncviewer | | 100Mbit/s eth0 | | Intel Corporation 82801BA/BAM/CA/CAM | +------eth0----------------------------+ | +-----+-----------+ | a cheap switch | | 10/100MBit/s | +-----+-----------+ | /// goes to another floor | | | +------+------+-+----+ | 100 Mbit hub | +-----+--------------+ | | +--------------------------------------------+ | | 100Mbit/s ports (only two) | +-----+--+-------------+ | | 10/100Mbit/s switch | | +----------+-+-+-+-----+ | | | | <- 10 Mbit/s ports | | | eth0 | Intel | eth0 Intel +---------+---------------+ +--------+---------------+ | Srv1 | | Srv2 | | CentOS | crossed | Fedora6->CentOS51 | | Intel eth1 +-----------------+ eth1 Realtek | | | UTP cable | | +-------------------------+ +------------------------+ Srv1, Srv2 are almost identical Compaq ProLiant servers, each with 512MB RAM, 2*PIII CPU, Compaq Smart-2/P RAID array, two ethernet 10/100 Mbis/s controllers. Srv1: # lspci 00:00.0 Host bridge: Broadcom CNB20-LE Host Bridge (rev 04) 00:00.1 Host bridge: Broadcom CNB20-LE Host Bridge (rev 02) 00:03.0 System peripheral: Compaq Computer Corporation Advanced System Management Controller 00:05.0 VGA compatible controller: ATI Technologies Inc 3D Rage IIC 215IIC [Mach64 GT IIC] (rev 7a) 00:06.0 PCI bridge: IBM PCI to PCI Bridge (IBM27-82351) (rev 07) 00:09.0 Ethernet controller: Intel Corporation 82557/8/9 Ethernet Pro 100 (rev 05) 00:0f.0 ISA bridge: Broadcom OSB4 South Bridge (rev 4d) 00:11.0 Host bridge: Broadcom CNB20-LE Host Bridge (rev 04) 00:11.1 Host bridge: Broadcom CNB20-LE Host Bridge (rev 02) 01:00.0 Mass storage controller: Compaq Computer Corporation Smart-2/P RAID Controller (rev 03) 02:04.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 14) 02:04.1 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 14) 02:08.0 Ethernet controller: Intel Corporation 82557/8/9 Ethernet Pro 100 (rev 05) Srv2: # lspci 00:00.0 Host bridge: Broadcom CNB20-LE Host Bridge (rev 04) 00:00.1 Host bridge: Broadcom CNB20-LE Host Bridge (rev 02) 00:03.0 System peripheral: Compaq Computer Corporation Advanced System Management Controller 00:05.0 VGA compatible controller: ATI Technologies Inc 3D Rage IIC 215IIC [Mach64 GT IIC] (rev 7a) 00:06.0 PCI bridge: IBM PCI to PCI Bridge (IBM27-82351) (rev 07) 00:0f.0 ISA bridge: Broadcom OSB4 South Bridge (rev 4d) 00:11.0 Host bridge: Broadcom CNB20-LE Host Bridge (rev 04) 00:11.1 Host bridge: Broadcom CNB20-LE Host Bridge (rev 02) 01:00.0 Mass storage controller: Compaq Computer Corporation Smart-2/P RAID Controller (rev 03) 02:04.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 14) 02:04.1 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 14) 02:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) 02:08.0 Ethernet controller: Intel Corporation 82557/8/9 Ethernet Pro 100 (rev 05) Srv1 runs CentOS5 for 8 months with no major problem. Srv2 had Fedora Core 6 installed, recently I decided to install CentOS5.1 instead. Because the servers are located in a noisy server room, have low-end CRT monitors where installation in graphical mode is not possible, I run installation using vnc method. As the servers to not have a DVD drive, I have put CentOS 5.1 DVD image on a hard disk and booted from a CentOS boot CD ( boot.iso ) or from GRUB [ using kernel and initd from boot.iso ] and specifying HardDisk installation source. First I have installed a small rescue system on /dev/ida/c0d0p1 [ Srv2 ] with eth0 as the interface vnc was using. No problem other than grub which did not install correctly and I had to install it from rescue mode using grub-install. When installing the regular system I decided to use more fancy method: >From my_PC I started ssh session to Srv1, redirecting port 5901 to Srv1/eth1/port 5901 (eth1 on Srv1 and Srv2 are configured to use private IP address range) Then I specified to CentOS51 installer that vnc is going to use eth1 interface. I could connect vncviewer to localhost:1 at my_PC (that is port 5901) which was forwarded over ssh to Srv1/eth1 and Srv2/eth1. This was working, I could prepare installation in custom mode, define LVM logical volumes, mount points, etc. When I came to package selection, however, Srv2 locked hard after some time (I tries 2 or three times, always the same result, somewhere in package selection the Srv2 locked hard). By 'locked hard' I mean no response to ping over eth0 or eth1, not even ARP response on eth0 or eth1, no response to attempts to switch virtual consoles (Alt-Fx) and no message on screen which would give any clue what might have happened. After 2 or 3 attempts to install that way, I run with no problem installation using vnc over eth0 (no ssh port forwarding this time). I do not expect any help for that, just wanted to share my weird experience. (No hard data, the lockup was before any log files could be created by installer, and there was no error messages on screen). Best regards, Wojtek

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AW: [CentOS] Archive-to-DVD
by Marc Rebischke 08 May '08

08 May '08

Hi folks, Here's the situation. I have a group of engineers who love to save things to disk. Now that the filer is getting full, they are interested in archiving some of those things to DVD. The tress containing the things they want to archive are specified like so: /path/path/path/A/04?? /path/path/path/B/04?? /path/path/path/A/05?? /path/path/path/B/05?? /path/path/path/A/06?? /path/path/path/B/06?? ...and there are things in A and B which do not match the specifications. The total amount of data in this specificaiton is around 30GB, and this is not distributed equally through the specification. What I'm hoping for is a program that I can feed in directory specifications like the above, and it will produce for me DVD images (.iso files) containing these trees in such a format that when the engineers want file $X, I can give them the DVD (or the whole stack, if required) and say "there you go" without having to go through a restore process. I don't want something which creates it's own archive format which spans the DVDs (ie split-tar or ufsdump). I would settle for a program that produces a list of files such that I can create DVD images on my own. Does anyone have any ideas how I might go about doing this, before I roll my own solution? -- /\oo/\ / /()\ \ David Mackintosh | dave(a)xdroop.com | http://www.xdroop.com ######################### Hi David, Well, it would be interesting if every path You mentioned (e.g. path/path/path/A/04??) will fit on a DVD. You could create several iso-images with "mkisofs" (e.g. "mkisofs -o /path1.iso path/path/path/A/04??"). Writing to dvd : growisofs /path1.iso Also check the man-pages for those commands to find more parameters. Regards Marc Rebischke

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Slightly OT: Extra icons on desktop - SOLVED
by MHR 08 May '08

08 May '08

I can't think of a better word for this than "weird." I went back and reread most of the emails on the original thread, and both Ross and Bill suggested that something about "misc" might be off. So, I created a new mount point called "other," pointed fstab at it, modified my scripts and symlinks that used to reference /misc, and rebooted. Voila! /other was automounted, as I wanted, and there's only one icon on the desktop for it. I did notice along the way that /etc/rc.d/rc.sysinit had a mount -a with a -t list of types of FSs to mount, which did not include ext2 or ext3. I added those, and that did not help the /misc situation. Apparently, there is something funny about /misc in FC8 (is that true in CentOS?). Anyway, problem solved, thanks to all, enjoy your day, etc., etc. mhr

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Re: Subject: [CentOS] "yum update" did not update kernel on one box
by Lanny Marcus 08 May '08

08 May '08

On 03 May 2008, Kai Schaetzl <maillists AT conactive.com> wrote: >Message: 9 ?Date: Sat, 03 May 2008 16:31:50 +0200 >Message-ID: <VA.000031c9.0166573a(a)news.conactive.com> >Lanny Marcus wrote on Sat, 3 May 2008 07:28:10 -0500: > Linux compaq1300.HOMELAN 2.6.18-8.el5 >Ok. I just asked because you never mentioned you had actually checked. >Just a kernel missing when you update is not proof ;-) >I see that you have priority protections in place. Disable all your >extra repos, then disable the protections (basically go back to your >inital repo setup) and then do a check-update. You are using the >mirrorlist and not a specific CentOS mirror, do you? Kai: This is a follow on to my prior reply to this. I removed the plugins=1 line in /etc/yum.conf and I removed 6 repositories. Then, I did "yum clean all" and got "Cleaning up Everything". Then, I did "yum update" and got, "No packages marked for update/obsoletion". Then, "yum update kernel" and got "No Packages marked for Update/Obsoletion". Then the yum.conf file type is shown as Cisco VPN Settings, so I couldn't open/view it with a text editor. The last thing I did was to copy these files on my box and replace the files on my wife's box with my files: (a) etc/yum/folder (b) etc/yum.repos.d (c) /etc/yum.conf file Same problem. It is as if there is a YUM or RPM database, somewhere, that believes the Kernel has been updated, and it has not been updated? I find it very hard to believe that the Kernel was in fact updated, but that it is still shown as the original Kernel that was on the CentOS5 Install DVD. So, this continues to be a an unsolved mystery, but not like the ReiserFS guy. :-) >BTW: I notice that your mail is missing any threading information, so >that it doesn't thread at all. I see that other people who use Gmail do >get the threading information, so there's probably some option not >activated in your Gmail account. I changed the setting for my subscription to the CentOS Mailing list, from the Daily Digest to Individual messages. This reply is to your message that was in the Digest I received Sunday morning. In the future, I will be replying to individual messages (using Gmail on the web or with Evolution), so, hopefully, the threading will be better, if not perfect. Gmail doesn't use Folders, they use Labels, and I don't have that working on the web yet, but I can move the CentOS messages into the CentOS Label in Evolution and because it's IMAP, they get moved into the CentOS Label on the web too. Something else for me to check out, but that's on the Gmail web site somewhere and will be much easier to cure than this mystery about the kernel update on one box. All of your ideas about the problem updating the Kernel in my wife's box are very much appreciated! I believe now that when I updated the Kernel (and 2 other packages) on my box and on my daughter's box, it was with PUP and then later, I did a "yum update" to update everything else on those boxes. If there is some place I can check in a yum database or RPM database on her box, to verify the kernel version that's really installed (probably the original one), please let me know where that is. Thanks much! Lanny

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R (statistics package) on CentOS-5 ?
by Kay Diederichs 07 May '08

07 May '08

Dear all, the statistics package R (www.r-project.org) was available for CentOS-4, but I need it for CentOS-5 (64bit). RPMforge has R-2.5.1 for CentOS-4, so I thought I'd try to install that on CentOS-5. However, yum complains about missing ggv, and the specfile indeed says that R requires ggv, which is not in CentOS-5 (it has kghostview). I could probably install with "rpm -Uvh --nodeps", but the question is rather: has anybody built R for CentOS-5 ? thanks for any insight, Kay

2 1

irc cloak
by James Bunnell 07 May '08

07 May '08

What are the requirements to get a Centos IRC cloak in freenode? Thanks in advance.

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