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CentOS 5.0 64bit - can't using ipt_connlimit module
by Ocon 8866 24 Jan '08

24 Jan '08

# iptables -m connlimit --help ......... connlimit v1.3.5 options: [!] --connlimit-above n match if the number of existing tcp connections is (not) above n --connlimit-mask n group hosts using mask ----------------------------------------- The library seems to exist also: /lib64/iptables/libipt_connlimit.so However, creating a rule that uses connlimit fails: #$IPTABLES -A tcp_traffic_in -p tcp --dport 80 -m connlimit --connlimit-above 2 -j DROP iptables: Unknown error 4294967295 So, am I missing something? Or am I limited to using netfilter's patch-o-matic and compiling a custom kernel (that I **really* do not* want to do)? Thank you so much Hoang Phong Viet Nam

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CentOS-announce Digest, Vol 35, Issue 15
by centos-announce-request＠centos.org 24 Jan '08

24 Jan '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-2008:0059 Moderate CentOS 3 ia64 wireshark - security update (Pasi Pirhonen) 2. CESA-2008:0058 Moderate CentOS 4 ia64 wireshark - security update (Pasi Pirhonen) 3. CESA-2008:0089 Important CentOS 5 i386 kernel Update (Karanbir Singh) 4. CESA-2008:0089 Important CentOS 5 x86_64 kernel Update (Karanbir Singh) 5. CESA-2008:0029 Important CentOS 3 ia64 XFree86 - security update (Pasi Pirhonen) 6. CESA-2008:0059 Moderate CentOS 3 s390(x) wireshark - security update (Pasi Pirhonen) 7. CESA-2008:0030 Important CentOS 4 ia64 xorg-x11 - security update (Pasi Pirhonen) 8. CESA-2008:0058 Moderate CentOS 4 s390(x) wireshark - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Wed, 23 Jan 2008 21:17:30 +0200 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2008:0059 Moderate CentOS 3 ia64 wireshark - security update To: centos-announce(a)centos.org Message-ID: <20080123191730.GA5043(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2008:0059 https://rhn.redhat.com/errata/RHSA-2008-0059.html The following updated files have been uploaded and are currently syncing to the mirrors: ia64: updates/ia64/RPMS/libsmi-0.4.5-3.el3.ia64.rpm updates/ia64/RPMS/libsmi-devel-0.4.5-3.el3.ia64.rpm updates/ia64/RPMS/wireshark-0.99.7-EL3.1.ia64.rpm updates/ia64/RPMS/wireshark-gnome-0.99.7-EL3.1.ia64.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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Recommend a mini or nano ITX system for Centos
by Robert Moskowitz 24 Jan '08

24 Jan '08

I am looking into convising the boss to get me a mini-itx system to replace my workhorse notebook (I have to have a corp notebook and I can remote terminal into a Centos server from it). 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!). Smallest footprint and power draw are the other key factors. As well as being able to run Centos and maybe also being able to go into memory or swap suspend! External power supply so I can use an alternate battery powerpak on the road. It would be soooo neat if I could put it in a pocket! The nano-itx boards almost make that possible. For a drive I would be using either a 8gb CF micro harddrive or perhaps an ipod drive with an IDE interface (something I have to learn more about). So what do you know about nano and mini ITX compatiblity to Centos. And complete systems?

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Why iptables are not working?
by Tolun ARDAHANLI 24 Jan '08

24 Jan '08

Hi; in our server we dont have "iptables" command! and i am trying to install it with that yum -y install iptables after this command it says that "...nothings to do". Do you have any suggestion for installing the iptables? thanks a lot.... Note: CENTos 5.1 is istalled... -- Tolun ARDAHANLI Bilgisayar Muhendisi E-posta:tolun.ardahanli@linux.org.tr Icq:326600 ---------------------------------------------------------------------------- Tolun ARDAHANLI Computer Engineer E-mail:tolun.ardahanli@linux.org.tr Icq:326600

6 7

crontab - corrected version
by Scott Ehrlich 24 Jan '08

24 Jan '08

So I want to see if there is a way to restrict crontab from running an executable or anything else from a world-writable directory, or subdirectory thereof. Thanks. Scott

3 2

Amanda oddity (amcheck)
by David G. Miller 23 Jan '08

23 Jan '08

I'm slowly getting everything back to normal here after swapping motherboards on my server. I also took the opportunity to bring the server up to CentOS 5. I'm still getting services working but I have one oddity with amanda. Ever since I upgraded the server to CentOS 5, amcheck dies and gives me a backtrace if there are no available tapes. amcheck works fine if the expected next tape is in my tape changer. If it's time to change tapes, I get: *** glibc detected *** /usr/sbin/amcheck: double free or corruption (fasttop): 0x09fb1a28 *** ======= Backtrace: ========= /lib/libc.so.6[0x9e1aa6] /lib/libc.so.6(cfree+0x90)[0x9e4fc0] /usr/sbin/amcheck[0x820e03] /usr/sbin/amcheck(main+0xc2d)[0x82291d] /lib/libc.so.6(__libc_start_main+0xdc)[0x990dec] /usr/sbin/amcheck[0x81da01] ======= Memory map: ======== 00110000-00135000 r-xp 00000000 09:02 2378087 /lib/libm-2.5.so 00135000-00136000 r-xp 00024000 09:02 2378087 /lib/libm-2.5.so 00136000-00137000 rwxp 00025000 09:02 2378087 /lib/libm-2.5.so 00137000-00140000 r-xp 00000000 09:02 2378088 /lib/libnss_files-2.5.so 00140000-00141000 r-xp 00008000 09:02 2378088 /lib/libnss_files-2.5.so 00141000-00142000 rwxp 00009000 09:02 2378088 /lib/libnss_files-2.5.so 002cd000-002d8000 r-xp 00000000 09:02 2378249 /lib/libgcc_s-4.1.2-20070626.so.1 002d8000-002d9000 rwxp 0000a000 09:02 2378249 /lib/libgcc_s-4.1.2-20070626.so.1 0046b000-0047a000 r-xp 00000000 09:02 2378128 /lib/libresolv-2.5.so 0047a000-0047b000 r-xp 0000e000 09:02 2378128 /lib/libresolv-2.5.so 0047b000-0047c000 rwxp 0000f000 09:02 2378128 /lib/libresolv-2.5.so 0047c000-0047e000 rwxp 0047c000 00:00 0 006ab000-006be000 r-xp 00000000 09:02 2378125 /lib/libnsl-2.5.so 006be000-006bf000 r-xp 00012000 09:02 2378125 /lib/libnsl-2.5.so 006bf000-006c0000 rwxp 00013000 09:02 2378125 /lib/libnsl-2.5.so 006c0000-006c2000 rwxp 006c0000 00:00 0 0081c000-00825000 r-xp 00000000 09:02 4560646 /usr/sbin/amcheck 00825000-00826000 rwxp 00008000 09:02 4560646 /usr/sbin/amcheck 008eb000-00904000 r-xp 00000000 09:02 2378079 /lib/ld-2.5.so 00904000-00905000 r-xp 00019000 09:02 2378079 /lib/ld-2.5.so 00905000-00906000 rwxp 0001a000 09:02 2378079 /lib/ld-2.5.so 0093a000-0093b000 r-xp 0093a000 00:00 0 [vdso] 0097b000-00ab5000 r-xp 00000000 09:02 2378081 /lib/libc-2.5.so 00ab5000-00ab7000 r-xp 0013a000 09:02 2378081 /lib/libc-2.5.so 00ab7000-00ab8000 rwxp 0013c000 09:02 2378081 /lib/libc-2.5.so 00ab8000-00abb000 rwxp 00ab8000 00:00 0 00ae7000-00aea000 r-xp 00000000 09:02 2378258 /lib/libtermcap.so.2.0.8 00aea000-00aeb000 rwxp 00002000 09:02 2378258 /lib/libtermcap.so.2.0.8 00dfb000-00e1b000 r-xp 00000000 09:02 4953736 /usr/lib/libamserver-2.5.0p2.so 00e1b000-00e1d000 rwxp 0001f000 09:02 4953736 /usr/lib/libamserver-2.5.0p2.so 00e1d000-00e1f000 rwxp 00e1d000 00:00 0 00ed0000-00eda000 r-xp 00000000 09:02 4674895 /usr/lib/libamtape-2.5.0p2.so 00eda000-00edb000 rwxp 00009000 09:02 4674895 /usr/lib/libamtape-2.5.0p2.so 00f9c000-00fbd000 r-xp 00000000 09:02 4675888 /usr/lib/libamanda-2.5.0p2.so 00fbd000-00fbe000 rwxp 00021000 09:02 4675888 /usr/lib/libamanda-2.5.0p2.so 00fbe000-00fdd000 rwxp 00fbe000 00:00 0 09fab000-09fcc000 rw-p 09fab000 00:00 0 b7e00000-b7e21000 rw-p b7e00000 00:00 0 b7e21000-b7f00000 ---p b7e21000 00:00 0 b7f86000-b7f89000 rw-p b7f86000 00:00 0 b7f92000-b7f94000 rw-p b7f92000 00:00 0 bfa86000-bfa9b000 rw-p bfa86000 00:00 0 [stack] Amanda Tape Server Host Check ----------------------------- Holding disk /share2/stage: 120193720 kB disk space available, using 120091320 kB Nothing jumps out at me when I Google for the error. Tape drive and changer are: [root@fraud etc]# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 04 Lun: 00 Vendor: HP Model: C1557A Rev: U709 Type: Sequential-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 04 Lun: 01 Vendor: HP Model: C1557A Rev: U709 Type: Medium Changer ANSI SCSI revision: 02 Everything appears to work correctly otherwise (tape changer changes tapes, backups get done, etc.). Just amcheck and only when the next tape isn't in the changer is a problem. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

1 0

Worth upgrading desktop to 5.1?
by Sean Carolan 23 Jan '08

23 Jan '08

I am using CentOS 5.0 on my desktop workstation. Are there any deeply compelling reasons to upgrade to version 5.1? I read through the release notes but didn't see any whiz-bang new features. Perhaps some of you can share your personal experience letting us know if you have noticed any differences, etc.

8 15

Hot swapping sata drives
by Jerry Geis 23 Jan '08

23 Jan '08

I have a two external USB drives only 1 is connected to centos 5.1 at a time. the USB drive is SLOW compared to SATA. The external drive suppots both connections USB and SATA. I bought a little $5 external SATA connector that goes into the PCI slot area (does not actually take a PCI slot just the backpanel) and just plugs back into one of the available SATA ports on the motherboard. When I turn off the external drive and put the other drive on the connection and then power on will SATA handle that automatically? Is there a command I need to run to tell it check for new disks? Is this possible? Will I have to reboot to get the swapped external disk detected. jerry

3 2

HA software advice
by Scott McClanahan 23 Jan '08

23 Jan '08

We are in need of some very basic software that will give us the ability to swing an ip address from one host to another during controlled maintenance or host failure. For now the IP address will be the only resource that is shared and there will never be a need for shared storage. Eventually we may want to monitor processes for health (probably just read in pid file) and it would be great if the recommended software had this ability as well but not completely necessary. The process monitoring part is just me trying to think ahead but it definitely wouldn't be needed in the near future. Ideally, this should be light weight user land code that hopefully already comes easily with the distribution :) Any suggestions? Thanks.

2 4

limiting cron's capability?
by Scott Ehrlich 23 Jan '08

23 Jan '08

Is it possible to prevent cron from executing something in a world-readable directory, or a directory branching off a world-readable directory? Thanks. Scott

2 2

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