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FreeNX documentation and other miscellanea
by Craig White 14 Feb '06

14 Feb '06

I was having trouble connecting to the server that I am using for remote development so I updated things and rebooted. Connected into FreeNX nicely after that...wonder if there is issues with memory leaks or something... Anyway, it appears that the nxagent grabbed port 3000 which is what I was using for rubyonrails/webrick (I probably can change that) which sort of tells me that when I first loaded freenx/nxagent, port 3000 was already in use so it probably adjusted itself but upon reboot, nxagent got all comfortable in port 3000 before I logged in and tried to start webrick in rails... So I wandered through the documentation on NoMachine.com but that doesn't really cover the nxagent and in checking out /etc/nxserver/node.conf.sample, it refers to documentation in !M which means absolutely nothing to me whatsoever. I do see that there are some options that might be interesting such as remote printing - and now that I enabled remote printing on the client side, the freenx server seems disinterested and probably has to be configured and I'm thinking that documentation might be a good thing...where does one find more details on FreeNX server/agent configuration? Thanks Craig

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WHERE CAN I DOWNLOAD CENTOS SPARC CD's
by Henry Rodriguez 14 Feb '06

14 Feb '06

I want to know where can i download the Centos Sparc cd's?? thanks.. --------------------------------- Relax. Yahoo! Mail virus scanning helps detect nasty viruses!

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Help with disk server stability issues
by Andrew Zahn 14 Feb '06

14 Feb '06

Hi All, I am looking for advice on how to cure a constantly-crashing NFS server which crashes every few hours, or at least, every few days. The kernel log file (below) points toward NFS as a likely cause. The system disk is a 3ware 8000 series RAID1 mirror. The data disk is using a 3Ware 9000 controller to produce two RAID1 devices; these are then striped (RAID0) in software to form a RAID 10 device. We're using a 2.6 kernel, xfs filesystem, and NFS3/UDP. We're running CentOS 4.2 with a 2.6.9-22.0.1.106 kernel. This kernel has xfs extensions, and we're running the xfs filesystem for /home (obtained from CentOS website). In "lsmod" I see both 3w_xxxx and 3w_9xxx modules. NFS is over UDP, jumbo frames (9000), 32k rsize/wsize, async server, async clients, noac. This system has been serving /home in this configuration since October 2005; we've seen it crash rarely, but uptimes were usually on the order of months. This past week, it can't seem to remain up for much longer than about a day. Kernel log file containing the crash: Feb 12 05:52:03 tier2-home kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Feb 12 05:52:03 tier2-home kernel: printing eip: Feb 12 05:52:03 tier2-home kernel: 00000000 Feb 12 05:52:03 tier2-home kernel: *pde = f561f067 Feb 12 05:52:03 tier2-home kernel: Oops: 0000 [#1] Feb 12 05:52:03 tier2-home kernel: PREEMPT SMP Feb 12 05:52:03 tier2-home kernel: Modules linked in: nfs nfsd exportfs lockd md5 ipv6 autofs4 i2c_dev i2c_core sunrpc xfs dm_mirror dm_mod button battery ac uhci_hcd shpchp e100 0 floppy ext3 jbd 3w_9xxx 3w_xxxx sd_mod scsi_mod Feb 12 05:52:03 tier2-home kernel: CPU: 0 Feb 12 05:52:03 tier2-home kernel: EIP: 0060:[<00000000>] Not tainted VLI Feb 12 05:52:03 tier2-home kernel: EFLAGS: 00010286 (2.6.9-22.0.1.106.unsupportedsmp) Feb 12 05:52:03 tier2-home kernel: EIP is at 0x0 Feb 12 05:52:03 tier2-home kernel: eax: e48ec050 ebx: c040a260 ecx: 00000000 edx: ecf89344 Feb 12 05:52:03 tier2-home kernel: esi: ecf89344 edi: f4ad4f00 ebp: 00000000 esp: f4ad4ee4 Feb 12 05:52:03 tier2-home kernel: ds: 007b es: 007b ss: 0068 Feb 12 05:52:03 tier2-home kernel: Process nfsd (pid: 2839, threadinfo=f4ad4000 task=f4afd6b0) Feb 12 05:52:03 tier2-home kernel: Stack: c01649d7 e48ec050 ffffffff c3e300b3 0028fd9d ecf89c2c c0164a4b 0028fd9d Feb 12 05:52:03 tier2-home kernel: 00000003 c3e300b0 ecf89c2c e48ec0c0 e48ec050 ecf89c2c f4ac6804 f8c8bdf3 Feb 12 05:52:03 tier2-home kernel: c3e300b0 c31d6a00 f7dc1700 c31d6a00 f89902e7 f4ab6000 f4ac6800 f4ac69d4 Feb 12 05:52:03 tier2-home kernel: Call Trace: Feb 12 05:52:03 tier2-home kernel: [<c01649d7>] __lookup_hash+0x70/0x89 Feb 12 05:52:03 tier2-home kernel: [<c0164a4b>] lookup_one_len+0x54/0x63 Feb 12 05:52:03 tier2-home kernel: [<f8c8bdf3>] nfsd_lookup+0x31c/0x3a8 [nfsd] Feb 12 05:52:03 tier2-home kernel: [<f89902e7>] svcauth_unix_set_client+0xa7/0xb5 [sunrpc] Feb 12 05:52:03 tier2-home kernel: [<f8c93351>] nfsd3_proc_lookup+0xa9/0xb3 [nfsd] Feb 12 05:52:03 tier2-home kernel: [<f8c952aa>] nfs3svc_decode_diropargs+0x0/0xfa [nfsd] Feb 12 05:52:03 tier2-home kernel: [<f8c896a2>] nfsd_dispatch+0xba/0x170 [nfsd] Feb 12 05:52:03 tier2-home kernel: [<f898d459>] svc_process+0x41b/0x6ce [sunrpc] Feb 12 05:52:03 tier2-home kernel: [<f8c89482>] nfsd+0x1cc/0x332 [nfsd] Feb 12 05:52:03 tier2-home kernel: [<f8c892b6>] nfsd+0x0/0x332 [nfsd] Feb 12 05:52:03 tier2-home kernel: [<c0104205>] kernel_thread_helper+0x5/0xb Feb 12 05:52:03 tier2-home kernel: Code: Bad EIP value. Feb 12 05:52:03 tier2-home kernel: <0>Fatal exception: panic in 5 seconds Feb 13 08:50:06 tier2-home kernel: klogd 1.4.1, log source = /proc/kmsg started. Feb 13 08:50:06 tier2-home kernel: Linux version 2.6.9-22.0.1.106.unsupportedsmp (buildcentos(a)louisa.home.local) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Sun Nov 6 1 3:58:14 CST 2005 Feb 13 08:50:06 tier2-home kernel: BIOS-provided physical RAM map: ...and the reboot continues normally.

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nmap showing lots of ports open that shouldn't be
by jim＠datamantic.com 14 Feb '06

14 Feb '06

I have a CentOS 4.2 machine. lokkit shows that a firewall is enabled, and it is customized to allow SSH, Web, and DNS traffic only. But if I run nmap against the server IP (from my home machine, outside the local network) it shows over 1000 open ports. Am I not understanding nmap, or is there something seriously wrong here? Here is a small snip of the nmap output (I can include it all if that is helpful, but it is quite long): (The 202 ports scanned but not shown below are in state: closed) PORT STATE SERVICE 1/tcp open tcpmux 2/tcp open compressnet 3/tcp open compressnet 4/tcp open unknown 5/tcp open rje 6/tcp open unknown 7/tcp open echo 8/tcp open unknown 9/tcp open discard 11/tcp open systat 12/tcp open unknown 13/tcp open daytime 14/tcp open unknown 15/tcp open netstat 16/tcp open unknown 17/tcp open qotd 20/tcp open ftp-data 22/tcp open ssh 24/tcp open priv-mail 25/tcp open smtp 26/tcp open unknown

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CentOS-announce Digest, Vol 12, Issue 6
by centos-announce-request＠centos.org 14 Feb '06

14 Feb '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-2006:0201 Important CentOS 4 i386 xpdf - security update (Johnny Hughes) 2. CESA-2006:0201 Important CentOS 4 i386 xpdf - security update (Johnny Hughes) 3. CESA-2006:0205 Moderate CentOS 4 i386 libpng - security update (Johnny Hughes) 4. CESA-2006:0205 Moderate CentOS 4 i386 libpng - security update (Johnny Hughes) 5. CESA-2006:0206 Important CentOS 4 i386 kdegraphics - security update (Johnny Hughes) 6. CESA-2006:0206 Important CentOS 4 x86_64 kdegraphics - security update (Johnny Hughes) 7. CESA-2005:474 Low CentOS 4 x86_64 bzip2 - security update (Johnny Hughes) 8. CESA-2005:474 Low CentOS 4 i386 bzip2 - security update (Johnny Hughes) 9. CESA-2006:0201 Important CentOS 4 x86_64 xpdf - security update (Johnny Hughes) 10. CESA-2006:0205 Moderate CentOS 4 x86_64 libpng - security update (Johnny Hughes) 11. CESA-2006:0201 Important CentOS 4 ia64 xpdf - security update (Pasi Pirhonen) 12. CESA-2006:0206 Important CentOS 4 ia64 kdegraphics - security update (Pasi Pirhonen) 13. CESA-2006:0205 Moderate CentOS 4 ia64 libpng - security update (Pasi Pirhonen) 14. CESA-2005:474 Low CentOS 4 ia64 bzip2 - security update (Pasi Pirhonen) 15. CESA-2006:0201 Important CentOS 4 axp xpdf - security update (Pasi Pirhonen) 16. CESA-2006:0206 Important CentOS 4 axp kdegraphics - security update (Pasi Pirhonen) 17. CESA-2006:0205 Moderate CentOS 4 axp libpng - security update (Pasi Pirhonen) 18. CESA-2005:474 Low CentOS 4 axp bzip2 - security update (Pasi Pirhonen) 19. CESA-2006:0201 Important CentOS 4 s390(x) xpdf - security update (Pasi Pirhonen) 20. CESA-2006:0206 Important CentOS 4 s390(x) kdegraphics - security update (Pasi Pirhonen) 21. CESA-2006:0205 Moderate CentOS 4 s390(x) libpng - security update (Pasi Pirhonen) 22. CESA-2005:474 Low CentOS 4 s390(x) bzip2 - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Mon, 13 Feb 2006 11:47:20 -0600 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2006:0201 Important CentOS 4 i386 xpdf - security update To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <1139852840.10641.32.camel(a)myth.home.local> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2006:0201 https://rhn.redhat.com/errata/RHSA-2006-0201.html The following updated files have been uploaded and are currently syncing to the mirrors: x86_64: xpdf-3.00-11.12.x86_64.rpm src xpdf-3.00-11.12.src.rpm

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apache virtual host
by Craig White 14 Feb '06

14 Feb '06

I don't ever do this... Shouldn't this be enough to set up a virtual server in apache? I did create an entry in /etc/hosts and in dns for this fqdn it still gives me the contents of /var/www/html and not /home/craig/ruby-db/th-db/public <VirtualHost *> DocumentRoot "/home/craig/ruby-db/th-db/public" ServerName app-server.tobyhouse.com <Directory "/home/craig/ruby-db/th-db/public"> allow from all Options Indexes ExecCGI FollowSymLinks ReWriteEngine On </Directory> </VirtualHost> What am I missing? Thanks Craig

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Disk Activity Monitor
by James Pifer 14 Feb '06

14 Feb '06

I have a USB disk connected to a Poweredge server. The USB Disk is a Mad Dog MegaVault with a 160GB drive installed. It's all working fine, but the external LED on the unit is not working. I'm currently running a script (yum-pull) for setting up a yum mirror and it sits for long periods of time seemingly doing nothing. I started the script this morning at 6:20 for my FC4 yum mirror and it's now 8:50 and it's still running. A "top" shows very little activity from a CPU perspective. The guy who wrote the script says there's probably tons of disk activity going on. The script does continue to run because it will eventually finish. One might think the slowness is because it's a USB drive, but I can copy large amounts of data and do permission changes on files, at the same time this script is running, and it all happens quickly. Guess I'm just trying to verify whether there really is a lot of disk activity going on. I tried looking at ksysguard, but wasn't very successful at seeing what I wanted. I'm not sure I want to use yum-pull if it take 3 hours to run per mirror. Right now I'm mirroring FC4, but I also want to do Centos 4.0 and 4.2, and maybe even Suse 9.2. Are there any other disk activity monitors I should try? Thanks, James

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mail access list
by Sam Drinkard 13 Feb '06

13 Feb '06

I just got through updating my /etc/mail/access file, adding about 20 more IP's that are sending spam/junk mail. During the process, I noticed I had some partial IP's in there, like 64.12.233 which is what I wanted to block. The IP did NOT however get blocked. From what I see, as long as I have a full ip address, they are blocked, but the partial (16) is not. Should it not work anyhow? Never had this problem before, and yes, I run a make on the file after editing. Sam

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disk initialize
by Jerry Geis 13 Feb '06

13 Feb '06

All, Is there a way to "re-initialize" as disk? remove the the boot loader and partions etc... make it "seem" like a brand new disk? Thanks, Jerry

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List of packages in RHEL extras?
by Jim Smith 13 Feb '06

13 Feb '06

I'm subscribed to the Nahant list and noted someone complaining about the IBM version of Java. Whilst his problems would probably disappear by using the official Java from www.java.com, my question is what is the list of rpms in the extras ISO/channel? I know licencing and so on may mean they cannot be redistributed but i just wanted to know if I'm missing out on anything. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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