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Re: [CentOS] Random files in homedir gets deleted
by Ross S. W. Walker 25 Jan '08

25 Jan '08

You can enable auditing to determine if the files are disappearing due to human/machine intervention (audit file system deletes) or if it is due to file system corruption (files disappear and no delete audits recorded). It may just be an errant rsync script. -Ross -----Original Message----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: centos(a)centos.org <centos(a)centos.org> Sent: Thu Jan 03 07:09:11 2008 Subject: [CentOS] Random files in homedir gets deleted On one of my systems I seem to loose a file or two from time to time. Last night, one of my files (/home/online/sh/NattjobbPrivat.sh) was deleted/removed/vanished. Another time it was /home/online/sh/daemon that was deleted. But I can't seem to find anything strange in the logs or in the history, nor would any of my scripts running in crontab mess with those files. Where can I look for clues? And how do I enable audit for file operations in my home folder? /Christopher Thorjussen _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

4 3

Shearing file systems on the network
by Peter Blajev 25 Jan '08

25 Jan '08

I have 4 systems and each one of them has a partition I'd like to be remotely accessible on the other 3 systems. In other words System1 has Partition1. Systems 2,3,4 should be able to remotely mount Partition1 from System1. Also System2 has Partition2. Then systems 1,3,4 should be able to remotely mount Partition2 from System2 and so on. I tried NFS and it works but only in the ideal world. If one of the systems goes down the whole NFS cross-mounting makes the other systems somewhat unstable. It's a known issue and I believe you guys are aware of it but I just had to see it myself. What would you recommend? What is the best practice for doing that? Unfortunately SAN and NAS are not really an option due to some financial restructions. I'm thinking SMB...? Would that work? Thank you Peter

4 3

Why Kudzu, Why?
by Michael Semcheski 25 Jan '08

25 Jan '08

So I have a CentOS 5 machine, which I recently did a 'yum update' on. Everything went fine, but I rebooted as a precaution (just to confront any problems which might arise the first time after an update). And sure enough, when the machine came back up, the network didn't work. Luckilly, someone said (and I quote) 'mv /etc/sysconfig/networking-scripts/ifcfg-eth0.bak /etc/sysconfig/networking-scripts/ifcfg-eth0 and blame kudzu'... So, what did I do wrong, or what should I have done differently? What's the reasoning behind this? I'll bet there is some rationale, and I'd like to understand it. Thanks, Mike

7 9

Interesting PXE server setup question
by Rob Lines 24 Jan '08

24 Jan '08

While this is not a problem with CentOS I am hoping to solve the situation using a CentOS machine. For anyone not interested I am sorry to clutter your mail box. For everyone else any ideas or suggestions are welcome. A bit of background: We have an application that runs only in DOS 6.22 at the moment that we would like to run on all of our desktop computers each time they boot up. Our workstations are mostly Windows XP with some Linux. Our goals: We would like to be able to have the machines boot into DOS and run the application and then reboot to the normal hard drive. We would like to have it require no user intervention or as little as possible. We would also like to have it only run the app during the first boot up of the day. Thoughts at the moment: One idea we have at the moment is to create a PXE server with the DOS boot image on it. (I have done that before using Windows RIS but we are trying to avoid a windows Server as RIS is a bit of a pain and it prefers user interaction. It also would not fit well with our solution to have it only run once a day.) We could then run the application and inside the DOS image we could have it reboot the machine. We could then set the client machines to boot PXE as their first boot option. The next thought was to somehow watch the connections to the tftp server where the boot image will be kept and watch for the client IP then have the PXE server create a new firewall rule that would block access from that client to tftp. The thought there is that once the client has downloaded the boot image once it will run it and then on reboot will not be able to find the boot image and, I think, would fail at the pxe boot and move on to the next item in the boot list. Then every midnight the list of blocked IPs would be cleared and we start the process over again. So any suggestions on the best way to take a bootable DOS disk and turn it into an image that a Linux based PXE server can serve, ways to monitor the tftp connections and then add them to the firewall after they have finished downloading the boot image, and any ideas on any better ideas would be appreciated. Thanks for taking the time to read this. Rob

5 4

Appreciate the help...
by Scott Ehrlich 24 Jan '08

24 Jan '08

I received some interesting answers to my cron question. Most people said it was not possible. One person reviewed cron's source code and said the source would need to be modified. One person said I should mount the filesystem with noexec. I'll review and test the answers as best I can. To answer several people's curiosities of why I keep pushing - when I'm tasked with a quest, I try to tap all my resources, including this list, to find a solution. One never knows when an answer might be obvious, or perplexing, as this question seems to have been. To some, an answer is obvious. To others, it is perplexing. It all depends on each person's level of knowledge. The more one learns, the more things can become more obvious. Thus, we grow. In the end, like now, I try to provide my findings, and, if valid, may be of benefit to others. I try not to wear out the list, but do what the list was created for - discussion and inquiry of UNIX and related topics. This question proved to test people's knowledge, and I did get some good feedback. Thanks to all, and until the next adventure... Scott

5 6

Re: [CentOS] Recommend a mini or nano ITX system for Centos
by Robert Moskowitz 24 Jan '08

24 Jan '08

Kenneth Porter wrote: > --On Wednesday, January 23, 2008 10:14 AM -0500 Robert Moskowitz > <rgm(a)htt-consult.com> wrote: > >> So I have been playing with one mini-itx system (the decTOP) and am >> looking at my options. >> >> I want a fast processor, 1Gb memory, LAN, 4USB, VGA. Wireless and >> bluetooth optional USB dongles along with a second LAN interface). PCI >> slot optional (for said wireless, bluetooth or LAN!). > > I've no experience with this unit, but it looks like it might meet > your needs: > > <http://www.logicsupply.com/products/artigo> Great looking system. Would be wonderful to know its bogomips rating. And the fan is not so nice... Will dig more into this. THANKS.

1 0

vlc
by jarmo 24 Jan '08

24 Jan '08

Anyone else got this, vlc do not start...? Here's the output.. VLC media player 0.8.6d Janus The program '.' received an X Window System error. This probably reflects a bug in the program. The error was 'BadAlloc (insufficient resources for operation)'. (Details: serial 280 error_code 11 request_code 146 minor_code 5) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) Jarmo

1 0

Dell 2950 and broadcom
by Martin 24 Jan '08

24 Jan '08

Hi all I'm trying to setup second ethernet on Dell 2950 server but there isn't any eth1 device (in the bios are ON) # dmesg |grep eth eth0: Broadcom NetXtreme II BCM5708 1000Base-T (B2) PCI-X 64-bit 133MHz found at mem f8000000, IRQ 169, node addr 001c23d878bb eth1: Broadcom NetXtreme II BCM5708 1000Base-T (B2) PCI-X 64-bit 133MHz found at mem f4000000, IRQ 169, node addr 001c23d878bd bnx2: eth0: using MSI bnx2: eth0 NIC Link is Up, 100 Mbps full duplex # uname -a Linux vmta2.contactlab.it 2.6.18-53.1.6.el5 #1 SMP Wed Jan 23 11:28:47 EST 2008 x86_64 x86_64 x86_64 GNU/Linux # ifconfig -a dev707 Link encap:Ethernet HWaddr 00:1C:23:D8:78:BD BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:169 Memory:f4000000-f4012100 eth0 Link encap:Ethernet HWaddr 00:1C:23:D8:78:BB inet addr:xxxxxxxxxx Bcast:xxxxxxxxx Mask:255.255.255.0 inet6 addr: fe80::21c:23ff:fed8:78bb/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:119649 errors:0 dropped:0 overruns:0 frame:0 TX packets:43871 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:91428814 (87.1 MiB) TX bytes:5879945 (5.6 MiB) Interrupt:169 Memory:f8000000-f8012100 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:14 errors:0 dropped:0 overruns:0 frame:0 TX packets:14 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:848 (848.0 b) TX bytes:848 (848.0 b) # ls -la /sys/class/net/ total 0 drwxr-xr-x 6 root root 0 Jan 24 10:39 . drwxr-xr-x 30 root root 0 Jan 24 10:39 .. drwxr-xr-x 3 root root 0 Jan 24 10:57 dev707 drwxr-xr-x 3 root root 0 Jan 24 10:40 eth0 drwxr-xr-x 3 root root 0 Jan 24 10:40 lo drwxr-xr-x 3 root root 0 Jan 24 10:40 sit0 # lsmod |grep bnx bnx2 190425 0 # cat /etc/modprobe.conf alias eth0 bnx2 alias eth1 bnx2 alias scsi_hostadapter megaraid_sas alias scsi_hostadapter1 ata_piix How can I do to setup eth1 device? kind regards

2 2

openldap 2.4.x - CentOS 4
by Tom Brown 24 Jan '08

24 Jan '08

Hi Is there an rpm pf openldap 2.4.something for CentOS 4 around ? We have 2.3 but there is a bug we are hitting that is meant to be fixed in 2.4 Any pointers appreciated thanks

1 0

cdrom_pc_intr: The drive appears confused
by Olaf Mueller 24 Jan '08

24 Jan '08

Hello, this morning my centos 5 server (2.6.18-53.1.4.el5) failed on the dvd device and disabled dma. The dvd-writer (/dev/hdg) is connected to the following controller as a secondary master. 02:07.0 RAID bus controller: Silicon Image, Inc. PCI0680 Ultra ATA-133 Host Controller (rev 02) There is also an harddisc as primary master connected on this controller. This harddisc is the only device in the system that I put to sleep with 'hdparm -S180 /dev/hde'. The error messages are: Jan 24 04:54:21 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Jan 24 04:59:38 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Jan 24 05:03:43 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Jan 24 05:11:34 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Jan 24 05:19:24 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Jan 24 05:20:06 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Jan 24 05:20:06 weidenwinde kernel: hdg: status error: status=0x58 { DriveReady SeekComplete DataRequest } Jan 24 05:20:06 weidenwinde kernel: ide: failed opcode was: unknown Jan 24 05:20:06 weidenwinde kernel: hdg: drive not ready for command Jan 24 05:20:06 weidenwinde kernel: hdg: status timeout: status=0xd0 { Busy } Jan 24 05:20:06 weidenwinde kernel: ide: failed opcode was: unknown Jan 24 05:20:06 weidenwinde kernel: hdg: DMA disabled Jan 24 05:20:06 weidenwinde kernel: hdg: ATAPI reset complete Jan 24 05:30:13 weidenwinde kernel: hdg: cdrom_pc_intr: The drive appears confused (ireason = 0x01). Trying to recover by ending request. Could this error caused by the hdparm sleep command for /dev/hde? regards Olaf

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