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name resolution question
by Joe Greenseid 21 Jan '08

21 Jan '08

Can anyone explain the following behavior to me? [jgreen@t-rex ~]$ nslookup proteome.hpcc.triad.local Server: 127.0.0.1 Address: 127.0.0.1#53 Name: proteome.hpcc.triad.local Address: 10.2.149.1 [jgreen@t-rex ~]$ nslookup proteome.vlan88.hpcc.triad.local Server: 127.0.0.1 Address: 127.0.0.1#53 Name: proteome.vlan88.hpcc.triad.local Address: 192.168.88.179 [jgreen@t-rex ~]$ nslookup proteome Server: 127.0.0.1 Address: 127.0.0.1#53 Name: proteome.hpcc.triad.local Address: 10.2.149.1 [jgreen@t-rex ~]$ nslookup proteome.vlan88 Server: 127.0.0.1 Address: 127.0.0.1#53 ** server can't find proteome.vlan88: SERVFAIL My /etc/resolv.conf is: [jgreen@t-rex ~]$ cat /etc/resolv.conf search hpcc.triad.local nameserver 127.0.0.1 I don't understand why it's not using the search field from /etc/resolv.conf for the second short name (proteome.vlan88). Any idea what can I do to get this working? Thanks, --Joe

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SELinux issue
by Ray Van Dolson 21 Jan '08

21 Jan '08

Hey all... not exactly an SELinux veteran, but am trying to work through some issues. Specifically, setting up a simple Samba configuration on a CentOS 5 machine. Determined I needed to do setsebool -P samba_enable_home_dirs 1 In order to get access to home directory shares working correctly. Fine; this is documented in samba_selinux(8). However, I still see the following in my /var/log/audit/audit.log file: type=AVC msg=audit(1200895451.310:1231): avc: denied { rename } for pid=24854 comm="smbd" name="smbd.log" dev=dm-0 ino=14254108 scontext=user_u:system_r:smbd_t:s0 tcontext=user_u:object_r:samba_log_t:s0 tclass=file type=SYSCALL msg=audit(1200895451.310:1231): arch=40000003 syscall=38 success=no exit=-13 a0=6155e0 a1=bfb8bf08 a2=60da4c a3=bfb8bf08 items=0 ppid=24848 pid=24854 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) comm="smbd" exe="/usr/sbin/smbd" subj=user_u:system_r:smbd_t:s0 key=(null) audit2allow suggests I create policy as follows: allow smbd_t samba_log_t:file rename; To resolve the problem. I decided to just do: setsebool -P smbd_disable_trans 1 And this cleared up the errors. Anyways, is this a bug? Seems like policy should allow smbd to work with its own logfiles.... Can file upstream if necessary, but starting here. Ray

1 0

port mapping
by Sobari Tanuwijaya 21 Jan '08

21 Jan '08

Dear All, If I want to do a port mapping in Centos, what tools should I look for? Where can I get the information about how to set it up (how to, manuals)? Thanks. -- Tanu --

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HTB - Centos 4.4
by Adriano Frare 20 Jan '08

20 Jan '08

Dear Friends, I am using HTB version 0.85 in CENTOS 4.4 and I configurated to limit bandwidth port 80 (hhtp) and 25 (smtp), but HTB don't work. Below , show files. [root@srv001 htb]# ls -la total 36 drwxrwxrwx 2 root root 4096 Set 11 21:46 . drwxr-xr-x 11 root root 4096 Set 11 00:11 .. -rw-r--r-- 1 root root 19 Fev 12 2002 eth0 -rw-r--r-- 1 root root 89 Set 11 01:01 eth0-2:10.www -rw-r--r-- 1 root root 89 Set 11 21:40 eth0-2:20.smtp -rw-r--r-- 1 root root 84 Set 11 21:45 eth0-2:30.dfl -rw-r--r-- 1 root root 89 Set 11 21:46 eth0-2:40.www-out -rw-r--r-- 1 root root 63 Set 11 00:13 eth0-2.root [root@srv001 htb]# cat eth0 DEFAULT=30 R2Q=100 [root@srv001 htb]# cat eth0-2.root # root class containing total bandwidth RATE=512kbit BURST=15k # class for outgoing WWW traffic RATE=100kbit CEIL=100kbit BURST=15k LEAF=sfq RULE=*:80 [root@srv001 htb]# cat eth0-2:30.dfl # default class for unclassified traffic RATE=1Kbit CEIL=100kbit BURST=15k LEAF=sfq [root@srv001 htb]# cat eth0-2:20.smtp # class for outgoing SMTP traffic RATE=100kbit CEIL=100kbit BURST=15k LEAF=sfq RULE=*:25 Thanks for help. Adriano

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need help in configuring iptables for smtp traffic
by ankush grover 20 Jan '08

20 Jan '08

Hi Friends, I am running Centos 5 64-bit on a Dell sever. I am trying to configure iptables for smtp traffic for which I need some help/guidance. The scenario is like this: On a linux box we have 3 public ips(eth1,eth2 and eth3) and 1 LAN IP(eth0). 2 public IPs are from the same service provider and 1 is from different service provider. eth3 and eth2 are from the same public provider but currently we are using only eth2 public ip There is a script which load balances the Internet Connection to both the Service providers through ip rule ip rule add from $publicip1 table 1 ip rule add from $publicip2 table 2 ip route add default scope global nexthop via $publicip1 dev eth1 weight 2 nexthop via $publicip2 dev eth2 weight 6 The problem we are facing is that we have 2 mx exchangers in our domain. Both the exchangers receives/sends the mails from the public ip like mx1 will receive/sends mails through eth1 (another service provider) mx2 will receive/sends mails through eth2 (another service provider) Accepting mails from public ip iptables -A INPUT -p tcp -d $publicip1 --dport 25 -j ACCEPT \ Natting rules iptables -A FORWARD -p tcp -d $smtpserver1 --dport 25 -j ACCEPT \ iptables -t nat -A PREROUTING -d $publicip1 -p tcp --dport 25 -j DNAT --to $smtpserver1:25 \ Sending mails from smtpserver1 to publicip1 iptables -t nat -A POSTROUTING -s $smtpserver1 -d 0/0 -o eth1 -j SNAT --to-source $publicip1 route add $smtpserver1 netmask 255.255.255.255 gw $publicip1 route add $publicip1 gw $gw1 Some more iptables rules which ban sending mails from different vlans/lans directly to public ips (both 1 and 2) $IPTABLES -A INPUT -p tcp -s $lan1 -d $publicip1 --dport $SMTP -j DROP \ $IPTABLES -A INPUT -p tcp -s $lan2 -d $publicip1 --dport $SMTP -j DROP \ $IPTABLES -A INPUT -p tcp -s $lan3 -d $publicip1 --dport $SMTP -j DROP \ Same rules we have for publicip2. But still we are not able to send emails from the $smtpserver running in the local lan to outside. Our requirement is like this smtpserver1 which is running postfix should only send/receive emails through publicip1 and smtpserver2 which is also running postfix should sends/receive mails through publicip2. We are able to receive emails both the public ips on the respective smtp servers but when we are sending emails to outside world it is sometimes going through both the public ips from a single smtp server. Any suggestions/comments are most welcome Thanks & Regards Ankush Grover

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CentOS-announce Digest, Vol 35, Issue 12
by centos-announce-request＠centos.org 20 Jan '08

20 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-2008:0031 Important CentOS 5 i386 xorg-x11-server Update (Karanbir Singh) 2. CESA-2008:0031 Important CentOS 5 x86_64 xorg-x11-server Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Sun, 20 Jan 2008 03:46:28 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2008:0031 Important CentOS 5 i386 xorg-x11-server Update To: centos-announce(a)centos.org Message-ID: <20080120034628.GA29288(a)base.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2008:0031 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0031.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 8a2d0755db05212945471d193b02f2e4 xorg-x11-server-sdk-1.1.1-48.26.el5_1.5.i386.rpm 660b3f8fdbd803cec4b4c4e74ecf0272 xorg-x11-server-Xdmx-1.1.1-48.26.el5_1.5.i386.rpm 80503fa803b0847f7bd31e5acf442d6c xorg-x11-server-Xephyr-1.1.1-48.26.el5_1.5.i386.rpm 6e0c4ee818e27c1aea4255d5cb38c6ca xorg-x11-server-Xnest-1.1.1-48.26.el5_1.5.i386.rpm 57223ade728fdf76f087d60efa9ec7c1 xorg-x11-server-Xorg-1.1.1-48.26.el5_1.5.i386.rpm e65abd2eec38df640548a43855e3bd98 xorg-x11-server-Xvfb-1.1.1-48.26.el5_1.5.i386.rpm Source: b89d6f73cd1202a3eb436d423bc301d5 xorg-x11-server-1.1.1-48.26.el5_1.5.src.rpm [Updated 19th January 2008] The original packages distributed with this errata had a bug which could cause some X applications to fail on 32-bit platforms. We have updated the packages to correct this bug. -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Sun, 20 Jan 2008 03:46:28 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2008:0031 Important CentOS 5 x86_64 xorg-x11-server Update To: centos-announce(a)centos.org Message-ID: <20080120034628.GA29306(a)base.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2008:0031 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0031.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 716074be861e1c34b054f63a059b6e6a xorg-x11-server-sdk-1.1.1-48.26.el5_1.5.x86_64.rpm b86d737b40bd8b97b2dff9e3747b7db2 xorg-x11-server-Xdmx-1.1.1-48.26.el5_1.5.x86_64.rpm 12f29928189685f170637b8a61ed6497 xorg-x11-server-Xephyr-1.1.1-48.26.el5_1.5.x86_64.rpm ecc5f39d960418520e4cdd46cb55598c xorg-x11-server-Xnest-1.1.1-48.26.el5_1.5.x86_64.rpm a562a8fb05f65bcac043f48332e81ed8 xorg-x11-server-Xorg-1.1.1-48.26.el5_1.5.x86_64.rpm aff7a971ddce46079b402af8939e2d7b xorg-x11-server-Xvfb-1.1.1-48.26.el5_1.5.x86_64.rpm Source: b89d6f73cd1202a3eb436d423bc301d5 xorg-x11-server-1.1.1-48.26.el5_1.5.src.rpm [Updated 19th January 2008] The original packages distributed with this errata had a bug which could cause some X applications to fail on 32-bit platforms. We have updated the packages to correct this bug. -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 35, Issue 12 ***********************************************

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5-in-1 Card Reader in Acer Extensa 5220
by Olaf Mueller 20 Jan '08

20 Jan '08

Hello, I have installed CentOS 5 (2.6.18-53.1.4.el5) on my new Acer Extensa 5220 notebook and everything seems to work fine except of the following: 1) Display is ok, but could maybe be better? The driver is set to 'vesa' but should be 'intel', in my opinion. But 'intel' isn't working in xorg.conf. 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03) 2) The 5-in-1 Card Reader isn't working. 0f:06.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD) 0f:06.3 Generic system peripheral [0805]: Texas Instruments PCIxx12 SDA Standard Compliant SD Host Controller 3) The wlan card isn't detected, but that's no problem. I will buy a ralink rt61 based pcmcia card which works great under my toshiba tecra notebook with CentOS 5. 04:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 01) 4) Suspend; not tested this yet So the only real problem is 2). Is there a possibility to get this 5-in-1 Card Reader working under CentOS 5? Thank you very much! regards Olaf

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service jexec
by jarmo 20 Jan '08

20 Jan '08

Started looking what services I actually having on and found this "jexec". Tried to google it and found some info, but do not understand its meaninig. Is it necessary and what does it do? Please, short explanation for "dummie" :D Jarmo

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Do we have any Zimbra users on the list?
by Johnny Hughes 20 Jan '08

20 Jan '08

All, Here is a request for Zimbra to provide official CentOS support: http://bugzilla.zimbra.com/show_bug.cgi?id=23487 Here is a poll that might help them see how many CentOS Customers they REALLY have: http://www.zimbra.com/forums/users/14136-foss-edition-most-popular-linux-di… I am not asking for anyone to do anything mean, or to say anything untrue, in fact, please don't. I am asking that if you use Zimbra on CentOS (either the Free Version or the Network Version) that you let them know that you are. If you would pay for Official support, let them know that too. Thanks, Johnny Hughes

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ICMP: 62.x.x.x: Source Route Failed
by ann kok 20 Jan '08

20 Jan '08

Hi all i got the ICMP: 62.x.x.x: Source Route Failed in the /var/log/message What is it? Thank you ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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