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[Request] Slurm
by Morten Nilsen 27 Mar '08

27 Mar '08

Hi, I really like the tool "slurm", which lets me monitor bandwidth usage realtime from within screen.. I would really appreciate it if this could be added to CentOS.. http://www.wormulon.net/slurm/ If some other tool that covers this need exists, I'll be glad to hear about it. -- Cheers, Morten

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Printer Configuration
by Mike Peterson 27 Mar '08

27 Mar '08

There used to be a CUI tool to configure printers from a server without X running. Is there still that tool but renamed to something else? Or do you have to use VNC and X to remotely configure printers starting with 5.x?

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new CentOS5.1, samba help requested
by Ray Leventhal 27 Mar '08

27 Mar '08

Hi all, I'm fighting with samba on a new CentOS 5.1 install. The goal here is to have unix/linux usernames/passwords used for the samba shares (which i'll setup using webmin, as I find it easy that way). At present, the home share and one for the company's public share are in place. I can see the server, browsing from WinXP to \\172.16.0.106, but permissions seem amiss. I should be able to read/write to a given share but it seems to be ro. Any pointers or advice would be greatly appreciated. My simple smb.conf file is here: [global] netbios name = BACKUP socket options = TCP_NODELAY force directory mode = 777 unix password sync = yes workgroup = WORKGROUP force create mode = 777 os level = 20 encrypt passwords = yes security = share public = yes passdb backend = smbpasswd directory mode = 777 [homes] writeable = yes public = yes path = /home [company data] comment = company data writeable = yes create mode = 775 path = /home/share1 Thanks in advance, -Ray

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Question on mail
by Jerry Geis 27 Mar '08

27 Mar '08

All of a sudden I am getting this error this morning. -------------------------------------- <<< 553 5.3.0 Spam blocked see: http://ordb.org/lookup/?host=mp;{client_addr} 501 5.6.0 Data format error Content-Type: message/delivery-status Action: failed Status: 5.3.0 Diagnostic-Code: SMTP; 553 5.3.0 Spam blocked see: http://ordb.org/lookup/?host=mp;{client_addr} Last-Attempt-Date: Thu, 27 Mar 2008 09:06:03 -0400 ------------------------------------------- Mail has been working fine for me for a very long time. I goto the address http://ordb.org and I get no page. Is this because this site is down or am I considered spam all of a sudden? Thanks, Jerry

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portmap not answering
by Kai Schaetzl 27 Mar '08

27 Mar '08

CentOS 5 updated, Xen host. The portmap on this machine is somehow "stuck" and I can't figure out why. I enabled it to be able to mount a remote nfs share. The first hurdle was that "portmap" didn't appear in the chkconfig list, it was installed with the initial packages but not added to chkconfig. Took me a while to figure this out. Adding and starting it up is no problem. But nfs still doesn't work and when I try rpcinfo -p that just hangs until it finally times out after a long while (rpcinfo to another machine is fine). An strace at that time indeed shows that it is stuck trying to connect to port 111 on localhost. Same when I try to connect with telnet. Port 111 shows up on lsof UDP and TCP and there's no error when portmap starts up. There's nothing in iptables or hosts.deny that could prevent a connect. SELinux is permissive. What could block those connects? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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how do I create a custom CD from an existing CD?
by Rudi Ahlers 27 Mar '08

27 Mar '08

Hi all This may sound funny, but I can't get onto any websites right now, so I can't even google. I want to customize the contents of my CentOS 5.1 x64 CD, and re-create the ISO to write to CD again and install on a server. I know it's got something todo with mkisofs, but I'm not 100% sure what the commands should look like Can someone please give me a sample of the whole command needed for such an operation? -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stugg

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Postfix - Maildir - MySQL - Cyrus Imap - Sieve
by Tom Brown 27 Mar '08

27 Mar '08

I would like to use the above config, i think. Can cyrus-imap work nicely with Maildir ? If so is there one available thats configured with msql support? In the past i have used courier-imap but ideally i want to use sieve thanks

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Commands failing silently?
by Dan Bongert 27 Mar '08

27 Mar '08

Hello all: I have a couple CentOS 4 servers (all up-to-date) that are having strange command failures. I first noticed this with a perl script that uses lots of system calls. Basically, sometimes a command just won't run: thoth(52) /tmp> ls thoth(53) /tmp> ls thoth(54) /tmp> ls thoth(55) /tmp> ls learner lost+found/ thoth(56) /tmp> ls learner lost+found/ thoth(57) /tmp> ls learner lost+found/ thoth(58) /tmp> ls learner lost+found/ thoth(59) /tmp> ls learner lost+found/ thoth(60) /tmp> ls learner lost+found/ thoth(61) /tmp> ls learner lost+found/ thoth(62) /tmp> ls thoth(63) /tmp> ls thoth(64) /tmp> ls thoth(65) /tmp> ls thoth(66) /tmp> uname -a Linux thoth.ssc.wisc.edu 2.6.9-67.0.7.ELsmp #1 SMP Sat Mar 15 06:54:55 EDT 2008 i686 i686 i386 GNU/Linux Nothing in either dmesg or /var/log/messages seems to indicate any problems. It also doesn't seem to matter what the command is -- ls is the quickest test, but sshd will sometimes to fail to spawn children, etc. There aren't a large amount of processes on the machine either -- only 122 at the moment. Has anyone seen this behavior before? Have I been hit with some sort of cunning rootkit? This machine shouldn't be publicly accessible; it's behind our firewall. Thanks. -- Dan Bongert dbongert(a)wisc.edu

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Should I update to DRBD 82?
by Amos Shapira 27 Mar '08

27 Mar '08

Hello, This morning I noticed the following output from "yum update": Installing: drbd82 x86_64 8.2.5-1.el5.centos extras 209 k replacing drbd.x86_64 8.0.11-1.el5.centos As far as I'm aware DRBD works fine for me. Is there a way I can find out about the new release and weather I should upgrade? I can't figure out the CentOS issue tracking system at bugs.centos.org but a google site search came up with http://bugs.centos.org/print_bug_page.php?bug_id=2657 (a DRBD 82 tracker bug with empty reports), which makes me feel like this version of the package is not 100% trusted. So - should I upgrade it or not? Generally, I try to stick to the "standard" as much as I can, but the text in http://wiki.centos.org/Repositories gives an impression that "if it's in Extras, it's well tested". Thanks, --Amos

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Anyone still uses "MO drive"?
by Fajar Priyanto 27 Mar '08

27 Mar '08

Hi all, I'm trying to use an old MO drive in Centos5.0. It's connected to an adaptec scsi card. From dmesg, the card seems to be recognized, but it doesn't "create" the sda device from the MO drive. Is there any more steps I must do? From Yahoo search (since it has older archive than google), it seems that Linux should be automatically recognize and setting up the scsi card and the MO drive. So, I'm clueless here. Any pointer is great. Thanks. -- Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial http://linux2.arinet.org 09:37:09 up 2:02, 2.6.22-14-generic GNU/Linux Let's use OpenOffice. http://www.openoffice.org The real challenge of teaching is getting your students motivated to learn.

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Widescreen monitor with Intel G965 graphics chipset
by Joseph L. Casale 26 Mar '08

26 Mar '08

I just migrated my working Fedora Core 8 desktop to CentOS 5.1 and went from my nice 1680x1050 resolution to 1280x1024. I have made all the possible xorg.conf changes I found on the net to no avail. I tried system-config-display –reconfig and it allows me to pick the resolution but reverts back to 1280x1024 in X? Anyone know what might need to be done in CentOS for this to work? The skewed aspect ratio drives me nuts☺ Thanks! jlc

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Two Internet connections...
by Frank Cox 26 Mar '08

26 Mar '08

I do some occasional tech work for a cable TV/Internet service provider. They have now offered me free services, including cable Internet. I currently have a DSL service through the telephone company and, for several reasons including the fact that it is really unlimited service with no cap and it comes with newsgroup access (neither of which the cable service has), I'm not really prepared to give that up. However, since I can get a free cable Internet service too I would like to be able to put that to use. Does anyone have any good ideas for what to do with an extra cable Internet service? Is there, say, a way to somehow "shotgun" two Internet services like you used to be able to do with dial-up modems to increase your transmission speed? -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com

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RE: [CentOS] System Rebooted by 2.6.18-8.1.8.el5
by Bowie Bailey 26 Mar '08

26 Mar '08

Greg Bailey wrote: > > Is there any chance someone could have hit the ctrl-alt-delete key > combination on the console to trigger the reboot? I've had people do > that inadvertently thinking they were on a Windows machine... After rebooting servers 3 or 4 times that way myself, I now disable this function in /etc/inittab on all of my servers. I don't see any point in allowing a hot-key to reboot a server. -- Bowie

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Monitor connections?
by Niki Kovacs 26 Mar '08

26 Mar '08

Hi, I just setup a dedicated server on OVH, and I wonder: what's the best way to monitor connection attempts? Like: folks trying to connect on various ports? Cheers, Niki

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System Rebooted by 2.6.18-8.1.8.el5
by Andrew Hearn 26 Mar '08

26 Mar '08

Hello, I have a machine that seemed to reboot by itself yesterday, in /var/log/messages I only see: Mar 25 14:26:45 asterisk shutdown[19256]: shutting down for system reboot When I type: last reboot I see: reboot system boot 2.6.18-8.1.8.el5 Tue Mar 25 14:28 (18:41) So it seems like the kernel rebooted, but I'm not sure how I can track down why, any pointers? Thanks! Andrew

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how to setup SFTP log file like vsftpd.log???
by mcclnx mcc 26 Mar '08

26 Mar '08

We have CENTOS version 3,4 and 5 on DELL servers. What I want to know is how to setup SFTP log file similiar to vsftpd.log. I knew /var/log/secure provide me login user information, but I need more detail like "file name", "get/put", etc. Thanks you for help. 付費才容量無上限？Yahoo!奇摩電子信箱2.0免費給你，信件永遠不必刪！ - 馬上體驗！

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RE: [CentOS] Securing SSH
by Bowie Bailey 26 Mar '08

26 Mar '08

Kai Schaetzl wrote: > Bowie Bailey wrote on Wed, 26 Mar 2008 09:18:56 -0500: > > > Use VPN to connect to your network and then ssh through the VPN > > tunnel to any machines you need to work with. This way only the > > VPN is exposed to the Internet. > > if the machines are within the LAN, yes. My original point was that > if you have a static IP address for your local LAN *and* you want to > restrict the *remote* machines to be ssh-connectable only from that > LAN (which is a good security measure) *and* you are on the road you > can still work on your remote machine by VPNing into your LAN. There > are other solutions, but VPN is probably the easiest one as most SOHO > routers should be able to terminate a VPN and it's likely that you > want to connect to your LAN via VPN for other purposes, anyway. Doing > that for the machines *within* your LAN is granted. Ok. I was thinking of a simpler "traveling user needs access to machines on the LAN" scenario. :) -- Bowie

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RE: [CentOS] Securing SSH
by Bowie Bailey 26 Mar '08

26 Mar '08

Kai Schaetzl wrote: > Robert Spangler wrote on Wed, 26 Mar 2008 08:03:48 -0400: > > > If you are going to use VPN then why not setup your remote site to > > use VPN and bypass SSH altogether then? > > There could be several reasons, for instance: > 1. SSH is all what is necessary > 2. it's probably easier to have *one* VPN and then be able to ssh to > dozens of other machines instead of setting up VPN on all of them and > running several VPN tunnels at once Use VPN to connect to your network and then ssh through the VPN tunnel to any machines you need to work with. This way only the VPN is exposed to the Internet. > > Bottom line is if you want to be secure don't use passwords for > > login. > > Still doesn't stop those brute-force attacks. It just makes them > fail. That's the point about moving port etc., not the security. Agreed. I have one machine on my network that exposes an ssh connection on a non-standard port. My logs for the last month do not show a single failed connection attempt. -- Bowie

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Re: [CentOS] Securing SSH
by Lee Garner 26 Mar '08

26 Mar '08

>> 3. Install some brute force protection which can automatically ban an >> IP on say 5 / 10 failed login attempts >The only software I know that could do this isn't supported anymore (trisentry) or is too confusing and I don't know it yet (snort). Suggestions? OSSEC-HIDS is pretty good.

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yum: removing Java group fails
by Kai Schaetzl 26 Mar '08

26 Mar '08

I did a "yum groupremove Java" and that failed "somehow". Yum listed all group members as "erased", but some rpm packages failed because of missing config files or so. As a result none of the 50 packages were removed from the rpm database, but all of their files seem to have been removed. How can I clean them out from the rpm db? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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Automount CIFS share in CentOS 5.1
by Joseph L. Casale 26 Mar '08

26 Mar '08

I am looking online trying to find a procedure to automount a CIFS share but need to use username/domain/pass in the credential file thats referenced in fstab. Its not working, anyone know of a resource that works in CentOS5.1? If it matters, the unc has a dash and a $ in it, and the password has special characters in it. Thanks! jlc

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Re: [CentOS] System Rebooted by 2.6.18-8.1.8.el5
by Ross S. W. Walker 26 Mar '08

26 Mar '08

Check if you allow write access to snmp and from whom. A reboot request could have been issued via snmp. -Ross ----- Original Message ----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: CentOS mailing list <centos(a)centos.org> Sent: Wed Mar 26 07:09:06 2008 Subject: Re: [CentOS] System Rebooted by 2.6.18-8.1.8.el5 > This looks like a normal shutdown command was issued from somewhere, > IMO. I would check the other log files under /var/log and its sub- > directories for entries around this time. Especially secure.log*. Also, > I don't know your configuration, but is there a cron or at entry that > has a scheduled reboot? > > also check last log to see who was logged in _______________________________________________ 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.

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NTFS-3G Support for CentOS 5.1 Live
by Mark Rose 26 Mar '08

26 Mar '08

I have been trying to mount my NTFS hard disk using the CentOS 5.1 Live USB pendrive I created from the LiveCD. I did an "fdisk-l" and see the partition as /dev/sdb1, but when I try to mount it, I get an error stating that NTFS is an unknown filesystem type. I attempted to install the ntfs-3g and fuse rpms, without any success (there were numerous dependancies and could not get libc to install).. Has anyone been able to successfully RW mount an NTFS filesystem using an USB install, if its even possible, that is? If not, are there any plans to include NTFS-3G support in the next release of the Live CD? Thanks! Mark

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swat is now broken
by Jason Pyeron 26 Mar '08

26 Mar '08

seems to mess up the pam for swat. [root@host67 security]# rpm -qf /etc/pam.d/samba samba-3.0.25b-1.el4_6.4 [root@host67 security]# cat /etc/pam.d/samba #auth required /lib/security/pam_stack.so service=system-auth #account required /lib/security/pam_stack.so service=system-auth auth required pam_stack.so service=system-auth account required pam_stack.so service=system-auth and now it works See below for debug/effort ==> /var/log/messages <== Mar 24 09:50:58 host67 swat[26626]: PAM unable to dlopen(/lib/security/pam_stack.so) Mar 24 09:50:58 host67 swat[26626]: PAM [dlerror: /lib/security/pam_stack.so: cannot open shared object file: No such file or directory] Mar 24 09:50:58 host67 swat[26626]: PAM adding faulty module: /lib/security/pam_stack.so Mar 24 09:50:58 host67 swat[26626]: [2008/03/24 09:50:58, 0] auth/pampass.c:smb_pam_auth(534) Mar 24 09:50:58 host67 swat[26626]: smb_pam_auth: PAM: UNKNOWN ERROR while authenticating user root Mar 24 09:50:58 host67 swat[26626]: [2008/03/24 09:50:58, 0] auth/pampass.c:smb_pam_passcheck(809) Mar 24 09:50:58 host67 swat[26626]: smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User root ! [root@host67 ~]# rpm -ql pam | grep stack /lib64/security/pam_stack.so /usr/share/doc/pam-0.77/txts/README.pam_stack /usr/share/man/man8/pam_stack.8.gz [root@host67 ~]# up2date --whatprovides /lib/security/pam_stack.so pam-0.77-66.23.i386 [root@host67 ~]# rpm -q pam pam-0.77-66.23 [root@host67 ~]# uname -a Linux host67.1.internal.pdinc.us 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux [root@host67 ~]# up2date -u pam Fetching Obsoletes list for channel: centos4-Base... Fetching Obsoletes list for channel: centos4-Updates... Fetching Obsoletes list for channel: centos4-extras... Fetching Obsoletes list for channel: centos4-addons... Fetching rpm headers... ######################################## Name Version Rel ---------------------------------------------------------- All packages are currently up to date [root@host67 ~]# up2date -u pam --arch=i386 Fetching Obsoletes list for channel: centos4-Base... Fetching Obsoletes list for channel: centos4-Updates... Fetching Obsoletes list for channel: centos4-extras... Fetching Obsoletes list for channel: centos4-addons... Fetching rpm headers... ######################################## Name Version Rel ---------------------------------------------------------- pam 0.77 66.23 i386 Testing package set / solving RPM inter-dependencies... Downloading headers to solve dependencies... ####################################### Downloading headers to solve dependencies... ######################################## audit-libs-1.0.15-3.el4_6.1 ########################## Done. audit-libs-1.0.15-3.el4_6.1 ########################## Done. cracklib-2.8.9-1.3.i386.rpm ########################## Done. cracklib-2.8.9-1.3.i386.rpm ########################## Done. glib2-2.4.7-1.i386.rpm: ########################## Done. glib2-2.4.7-1.i386.rpm: ########################## Done. pam-0.77-66.23.i386.rpm: ########################## Done. pam-0.77-66.23.i386.rpm: ########################## Done. cracklib-dicts-2.8.9-1.3.i3 ########################## Done. cracklib-dicts-2.8.9-1.3.i3 ########################## Done. Preparing ########################################### [100%] Installing... 1:glib2 ########################################### [100%] 2:audit-libs ########################################### [100%] 3:cracklib ########################################### [100%] 4:cracklib-dicts ########################################### [100%] 5:pam ########################################### [100%] The following packages were added to your selection to satisfy dependencies: Name Version Release -------------------------------------------------------------- audit-libs 1.0.15 3.el4_6.1 cracklib 2.8.9 1.3 glib2 2.4.7 1 cracklib-dicts 2.8.9 1.3 [root@host67 ~]# tail -f /var/log/messages Mar 25 19:26:17 host67 swat[5003]: PAM unable to dlopen(/lib/security/pam_stack.so) Mar 25 19:26:17 host67 swat[5003]: PAM [dlerror: /lib/security/pam_stack.so: cannot open shared object file: No such file or directory] Mar 25 19:26:17 host67 swat[5003]: PAM adding faulty module: /lib/security/pam_stack.so Mar 25 19:26:17 host67 swat[5003]: [2008/03/25 19:26:17, 0] auth/pampass.c:smb_pam_auth(534) Mar 25 19:26:17 host67 swat[5003]: smb_pam_auth: PAM: UNKNOWN ERROR while authenticating user root Mar 25 19:26:17 host67 swat[5003]: [2008/03/25 19:26:17, 0] auth/pampass.c:smb_pam_passcheck(809) Mar 25 19:26:17 host67 swat[5003]: smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User root ! [root@host67 ~]# dir /lib/security/pam_stack.so -rwxr-xr-x 1 root root 10764 Nov 16 22:59 /lib/security/pam_stack.so [root@host67 ~]# rpm -Vf /lib/security/pam_stack.so S.5....T. c /etc/pam.d/system-auth [root@host67 ~]# rpm -e glib2.i386 pam-0.77-66.23.i386 [root@host67 ~]# rpm -e audit-libs.i386 [root@host67 ~]# rpm -e cracklib.i386 [root@host67 ~]# rpm -e cracklib-dicts.i386 [root@host67 ~]# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us <http://www.pdinc.us/> - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, purge the message from your system and notify the sender immediately. Any other use of the email by you is prohibited.

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Tape Drive and Bacula issue
by Joseph L. Casale 26 Mar '08

26 Mar '08

I posted this in the Bacula list without success so I hope I might have some luck here. Btape and mt can access my DDS-3 Seagate Archive Python 06480-xxx tape drive but Bacula tray-mon ends up finally stating that it cannot open device /dev/nst0? That is the device string that I use to access the drive, oddly enough it also suggest the SD could not open the one file based storage location I have either, yet I can Label new media and I see it appears in the directory? I installed from RPM's. Anyone got any ideas or pointers they could suggest? Thanks! jlc

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AltGr over vnc not working
by Kai Schaetzl 25 Mar '08

25 Mar '08

I notice that when I connect from a Windows VNC client (any VNC distribution it seems) to the Centos desktop (Gnome) I cannot send AltGr key combinations. The vncserver on the CentOS side is vino from Gnome. I cannot check if the same happens when connecting from a CentOS machine to a CentOS machine, but it looks more like Gnome simply ignores AltGr when sent over VNC. Why would it do this? Where might I be able to change this? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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Rejecting valid mail (including this mailing list)
by Sam Drinkard 25 Mar '08

25 Mar '08

Recently, I added the below line to my sendmail.mc and rebuilt. Everything was working just fine until sometime today. In looking over the maillog, it seems if almost every piece of mail was rejected because of this configuration - mail that I know is OK, valid, and not a source of spam, like tamu.edu. Not only that, but the mailing list from centos was being rejected as well. Anyone know what might be happening? One link I ran across said that ordb.org went out of business or stopped their service in Dec of '06. If that's the case, why is their info still being listed in some of the sendmail configs, and others still advertising it's use. dnl # FEATURE(`dnsbl', `relays.ordb.org', `"550 Email rejected due to sending server misconfiguration - see http://www.ordb.org/faq/\#why_rejected"')dnl Sam

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Re: News Groups (local) mirrored with mailinglists
by David Hláčik 25 Mar '08

25 Mar '08

Hi, i want to know - how synchronization mailinglist <----> news works . I can set a name of a news group for mailinglist in mailman. Is it all that is necessary to do? I do understand one way - from mailman to news server, but what about the other side? How can i achieve it? Hope it is understable ... Mailman + INN My next question talks about INN f and pam authentification (pam ldap). Am i able to configure access to particular groups for particular users? (like user joe will have acces to com.disc and com.dad , and user ivan will have access only to com.disc ) ? Thanks in advance! Davic On Mon, Feb 4, 2008 at 4:36 PM, David Hláčik <david(a)hlacik.eu> wrote: > Hi to all , i am looking for a solution to provide : > > News Groups (local) mirrored with mailinglistsn a > Best solution i see is INN + mailman. > > What i am looking for is some script which will make my life easier. > > I want to be able to automatically create News Group with same Mailinglist > name . > I want to be able to have a user -based access to a particular news > groups. > > Thanks in advance! > > David >

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Frustration with yum
by Sam Drinkard 25 Mar '08

25 Mar '08

I suppose it's more of a frustration with myself, but can some kind soul please help me with the procedure to tell yum a package is in fact installed? Here is the output from the command "yum update". # yum update Setting up Update Process Setting up repositories kbs-CentOS-Extras 100% |=========================| 951 B 00:00 kbs-CentOS-Misc 100% |=========================| 951 B 00:00 update 100% |=========================| 951 B 00:00 rpmforge 100% |=========================| 1.1 kB 00:00 base 100% |=========================| 1.1 kB 00:00 addons 100% |=========================| 951 B 00:00 extras 100% |=========================| 1.1 kB 00:00 Reading repository metadata in from local files Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package kernel-devel.i686 0:2.6.9-67.0.7.EL set to be installed ---> Package kernel.i686 0:2.6.9-67.0.7.EL set to be installed ---> Package tzdata.noarch 0:2007k-2.el4 set to be updated ---> Package krb5-devel.i386 0:1.3.4-54.el4_6.1 set to be updated ---> Package krb5-workstation.i386 0:1.3.4-54.el4_6.1 set to be updated ---> Package clamav-data.i386 0:0.88.2-2.el4.kb set to be updated ---> Package clamav-server.i386 0:0.88.2-2.el4.kb set to be updated ---> Package krb5-libs.i386 0:1.3.4-54.el4_6.1 set to be updated ---> Package kernel-hugemem-devel.i686 0:2.6.9-67.0.7.EL set to be updated ---> Package kernel-smp-devel.i686 0:2.6.9-67.0.7.EL set to be updated ---> Package lftp.i386 0:3.7.0-1.el4.rf set to be updated ---> Package evolution.i386 0:2.0.2-35.0.4.el4_6.1 set to be updated --> Running transaction check --> Processing Dependency: clamav-db = 0.92.1-1.el4.rf for package: clamav --> Processing Dependency: clamav-lib = 0.88.2-2.el4.kb for package: clamav-server --> Processing Dependency: libclamav.so.1 for package: clamav-server --> Processing Dependency: clamd = 0.92.1-1.el4.rf for package: clamav-milter --> Restarting Dependency Resolution with new changes. --> Populating transaction set with selected packages. Please wait. ---> Package clamav-lib.i386 0:0.88.2-2.el4.kb set to be updated --> Running transaction check --> Processing Dependency: clamav-db = 0.92.1-1.el4.rf for package: clamav --> Processing Dependency: clamd = 0.92.1-1.el4.rf for package: clamav-milter --> Finished Dependency Resolution Error: Missing Dependency: clamav-db = 0.92.1-1.el4.rf is needed by package clamav Error: Missing Dependency: clamd = 0.92.1-1.el4.rf is needed by package clamav-milter As you can see in the last two lines, clamav-db and clamd appear to be missing, but I assure you, clamav-milter and clamav as well as the database are here, and running quite well. I even went so far as to do an erase of both, and both times, yum shows them as being installed. Of course I did not erase them, but if it finds them to be installed, why does it say they are missing during an update attempt? I'm off the digest currently, so I can more quickly respond with further info if needed. Thanks.. Sam

6 7

AW: [CentOS] Securing SSH
by Marc Rebischke 25 Mar '08

25 Mar '08

So I setup ssh on a server so I could do some work from home and I think the second I opened it every sorry monkey from around the world has been trying every account name imaginable to get into the system. What's a good way to deal with this? _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos ######################### - Try to get a static ip from your isp and configure your Firewall only to allow Ssh-Traffic from your static IP-Adress - Take a closer look at "FailBan" to prevent Dictionary Attacks on well known Usernames - Ignore these poor souls (if they have one) Regards Marc Rebischke

1 0

Sendmail novrfy filter by ip address?
by Sean Carolan 25 Mar '08

25 Mar '08

I have a virus and spam filter device that can do VRFY commands to reject invalid email before it gets to the next mail hop. How can I configure the SMTP server to only allow VRFY commands from one particular IP address, and nowhere else? I don't want spammers to be able to hammer on the gateway looking for valid addresses to send to.

2 2

test
by J C 25 Mar '08

25 Mar '08

hello everyone, i just signed up onto the mailing list, testing. nice to meet you all! JC

2 1

question about network repositories
by Rudi Ahlers 25 Mar '08

25 Mar '08

Hi I'm thinking about setting up a local / LAN respository for my CentOS, and probably other (Fedora Core) disto's, but have never done it before, so here's some questions: If I setup a repository, can it hold different distro's / architectures & versions? Say for example, CentOS 4 (i386 & x64), CentOS 5.0 & 5.1 (i386 & x64) - will each one have it's own folder? Will it also be possible to only download the packages that are needed, instead of the whole 4GB repository from the upstream provider? I have some of the CD's or DVD's for all of the distro's, so really only need a few packages now and then, and instead of getting them from the net everytime, get them from the LAN repository? Then, how would I do this? -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stugg

6 9

RHEL on The Pirate Bay, Mininova, etc
by Simon Jolle sjolle 25 Mar '08

25 Mar '08

Hi Centos Users Its _really_ nonsense to release RHEL version on file sharing networks. The only reason why RHEL is so popular on torrent trackers is the lack of knowledge about Centos :-) Conclusion: we should do more marketing :-) cheers Simon

17 47

CentOS 5.1 Live USB NTFS Support
by Mark Rose 25 Mar '08

25 Mar '08

First of all, I was able to use the 5.1 LiveCD to create a bootable USB (8G Lexar FireFly) - thanks to all for your assistance. Question - has anyone been able to add NTFS support to an USB install? It would be a nice to have the ability to access NTFS (and Vista for that matter) disks for troubleshooting and general access. Any and all comments will be appreciated. Thanks! Mark

2 1

moving from RH8 to CentOS5.1
by Ray Leventhal 24 Mar '08

24 Mar '08

Hi all, Is there a way to 'automatically' recreate users/permissions when moving from RH8 (yes, I know...way old) to CentOS5.1 or is it just simpler to recreate the users manually? Total users on this system is < 20. Thanks in advance, -Ray

3 2

CentOS 5.1 on PS3
by James A. Peltier 24 Mar '08

24 Mar '08

Hi All, Does anyone here on the list have CentOS 5.1 running on a PS3? I would like to look at integrating a couple of PS3 nodes into our cluster for it's ability to use the Cell processor inside and was wondering if anyone had any experiences.

3 2

Strange Xen problem
by Louis Lagendijk 24 Mar '08

24 Mar '08

I have a strange problem when using Centos: When using a Xen kernel (it does not matter whether a guest is started or not) networking fails is flakey. ssl connections fail, ping reports a wrong data byte #50 ..... I am using a Sun quad ethernet card, but when I tried the gigabit Ethernet on the motherboard, I do not get the error reports from ping, but many missing replies instead. The behaviour is somewhat intermittent. But now I am using a non-Xen kernel I have no problems. there is nothing logged in /var/log/messages. I had to patch the kernel due to some missing initialisation in the sun hme driver, but as said above there are errors on other cards as well. I am probably overlooking something obvious, but hours of googling have not given any results. Any hints anybody? Louis

1 0

/etc/resolv.conf changes
by vincenzo romero 24 Mar '08

24 Mar '08

Hello all, I'm getting frustrated attempting to understand; I googled and asked folks and am unable to get a straight answer. 1. How is the /etc/resolv.conf file maintained ? I do not seem to get a consistent result when I save resolv.conf configuration from GUI or by hand using vim /etc/resolv.conf. a. Sometimes I the entries toggles between the two entries: # generated by NetworkManager, do not edit! ; Use a local caching nameserver controlled by NetworkManager nameserver 127.0.0.1 b. then when I restart the network services some the /etc/resolv.conf file appears like this: # generated by NetworkManager, do not edit! ; Use a local caching nameserver controlled by NetworkManager search lab.mycompany.com nameserver 192.168.17.2 This host is: - a DNS server that is authoritative for its domain within the 192.168.16/20 network - I believe that even as DNS server, this host should have its resolv.conf file configured to define itself as a DNS server, right? I apologize for the naive questions, but I am a newbie and am unable to gather a straightforward answer. thanks in advance. -- best, Vince

3 3

simple DNS question - reverse nslookup fails.
by vincenzo romero 24 Mar '08

24 Mar '08

Hello all, I am trying to configure a subdomain DNS server on a Cent OS 5.1 - for my lab. Brief configuration: Lab machine ---> 192.168.17.2 (should respond to DNS queries from hosts in 192.168.16.0/20 network) 1. I would also like to forward any queries outside the above network to our corporate domain (no firewalls between our 192.168.16.x network and the corporate network. The domain server is: dns.company.com with an IP of 10.100.1.2 (255.255.255.0). 2. What I have configured is: 192.168.17.2 --> myhost.lab.company.com 10.100.1.2 --> dns.company.com 3. Installed the dns bind 9 in myhost and set basic configuration via the system-config-bind GUI. My configuration file specific to my setup there is: cat lab.maxiscale.com.db $TTL 1H @ SOA myhost.lab.company.com. root.myhost.lab.company.com. ( 2 3H 1H 1W 1H ) NS myhost.lab.company.com. qaserver2 A 192.168.17.3 qaserver1 A 192.168.17.1 myhost A 192.168.17.2 ================= The rest of the DNS/Bind records were based upon the auto-generated files from the Bind GUI Config tool. 3. I also changed myhost's resolv.conf to reflect the following: search lab.mycompany.com 192.168.17.2 search mycompany.com 10.100.1.2 ====== PROBLEM: 1. When I am in myhost.com, I can perform: a. nslookup hostname (to any host within 192.168.x and 10.100.x networks) b. nslookup ip to anyhost wtihin both networks. 2. When I am in one of the hosts within 192.168.x aside from myhost.com (for example, qaserver1 or qaserver2): a: SUCCESS to nslookup hostname to any host within BOTH networks. b. FAILS to nslookup ip (reverse nslookup) to anyhost within the 10.100.x network. this is the error I get: nslookup 10.100.1.2 Server: 192.168.17.2 Address: 192.168.17.2#53 Non-authoritative answer: 24.1.100.10.in-addr.arpa name = dns.company.com. Authoritative answers can be found from: . nameserver = e.root-servers.net. . nameserver = f.root-servers.net. . nameserver = g.root-servers.net. . nameserver = h.root-servers.net. . nameserver = i.root-servers.net. . nameserver = j.root-servers.net. . nameserver = k.root-servers.net. . nameserver = l.root-servers.net. . nameserver = m.root-servers.net. . nameserver = a.root-servers.net. . nameserver = b.root-servers.net. . nameserver = c.root-servers.net. . nameserver = d.root-servers.net. a.root-servers.net internet address = 198.41.0.4 b.root-servers.net internet address = 192.228.79.201 c.root-servers.net internet address = 192.33.4.12 d.root-servers.net internet address = 128.8.10.90 e.root-servers.net internet address = 192.203.230.10 f.root-servers.net internet address = 192.5.5.241 g.root-servers.net internet address = 192.112.36.4 h.root-servers.net internet address = 128.63.2.53 i.root-servers.net internet address = 192.36.148.17 j.root-servers.net internet address = 192.58.128.30 k.root-servers.net internet address = 193.0.14.129 k.root-servers.net has AAAA address 2001:7fd::1 l.root-servers.net internet address = 199.7.83.42 ===== I must be missing something stupid and apparent .... any help would be greatly appreciated!!! :) thanks in advance! -- best, Vince

3 3

smartest way to setup new system (DELL PE 4600)
by Ray Leventhal 24 Mar '08

24 Mar '08

Hi all, One of our servers (very old) died last week and I'm setting up a new CentOS 5.1 box to replace it. Primarily used as a samba fileshare on a mostly windows-workstation network. This system will, ideally, have the OS on a 146 GB SCSI drive, with user data on a 300GB SCSI, both attached to the backplane of the 4600. My question is this: What's best practice and most desirable partitioning for doing this, and how would I go about setting up mirrors of both the OS and the user data drives? Thanks in advance for any help on what I know is a rather newbie question....please chalk it up to lack of sleep and veritable hounding by the 'higher ups' :) Kind regards, -Ray

2 1

Xen or VMWARE on CentOS 5
by Ern jura 24 Mar '08

24 Mar '08

Does anyone out there have a comprehensive tutorial on installing VMware and successfully managing virtual machines with either xen or vmware?

7 10

Health Monitoring
by Ed Donahue 24 Mar '08

24 Mar '08

Hey, I am looking for healt monitoring software for my centos5.1 box. Nothing crazy (like nagios), just something that records memory/cpu usage every min to 5 mins. I added some vmware stuff and was looking to see when if swap gets used and cpu spikes.

3 3

C5 krb5 updates do not get applied
by Bernd Bartmann 23 Mar '08

23 Mar '08

Hi, the latest Centos 5 krb5 1.6.1-17.el5_1.1 do not get applied to any of my servers. I can see the updates being available on the mirror servers, but "yum update" shows nothing. The krb5 updates for Centos 4 were installed on all of my Centos 4 servers without any problem. Does somebody have any idea what could cause the problem on Centos 5? Thanks in advance, Bernd.

3 2

Un Installing a hard drive in a Centos 5.1 box
by Pam Astor 23 Mar '08

23 Mar '08

>>>>>I'm fairly new to Linux and I'm trying to un install a hard drive from my Centos 5.1 >>>>>box running KDE. When I built the PC, I installed two 500 gig maxtors in the tower, >>>>>then I installed Centos. Now I've decided that I want to remove the slave drive and >>>>>use it as an external backup drive - I am mounting it into one of those external >>>>drive cases with a built in fan. >>>>> >>>>>When I physically removed the drive and restarted the PC, centos would not boot up and >>>>>went into a kernel panic. I'm sure I'm supposed to somehow unmount the thing before >>>>>I do this, and that's my question - how do I un-install the hard drive - software >>>>>wise - so that on next boot up, centos don't go crazy looking for it? >>>> >>>>run >>>># mount >>>>this will show the mounted partitions. find the partitions that are on >>>>the second drive and unmount them: >>>># umount /path/to/partition >>>>if a service uses them, you'll see an error. you will need to fix the >>>>errors until you can unmount them. >>>>then comment out these partitions in /etc/fstab. >>> >>>OK this is what I have when I run mount - does it appear that >>>I have both drives on one volume?: >>> >>> >>> /dev/mapper/VolGroup00-LogVol00 on / >>>type ext3 (rw) >>>proc on /proc type proc (rw) >>>sysfs on /sys type sysfs (rw) >>>devpts on /dev/pts type devpts >>>(rw,gid=5,mode=620) >>>/dev/sda1 on /boot type ext3 (rw) >>>tmpfs on /dev/shm type tmpfs (rw) >>>none on /proc/sys/fs/binfmt_misc type >>>binfmt_misc (rw) >>>sunrpc on /var/lib/nfs/rpc_pipefs type >>>rpc_pipefs (rw) >> >>If the machine panics at boot time, there is a good chance that you >>installed with LVM and its got both the drives into one volume. You will >>need to reinstall that second harddrive, then work out the process of >>shrinking the filesystem down to only 1 drive, then remove the second >>drive. The scope of this work might be too much for an email, so I can >>best point you at the LVM HowTo. There are also some good lvm tips in >>the CentOS5 docs ( http://www.centos.org/docs/5/ ) >> > >am Astor wrote: >> OK this is what I have when I run mount - does it appear that >> I have both drives on one volume?: >> >> /dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw) >> >> >>what output to do you get from : >>pvdisplay; vgdisplay; lvdisplay >[root at localhost ~]# pvdisplay; vgdisplay; lvdisplay > --- Physical volume --- > PV Name /dev/sdb1 > VG Name VolGroup00 > PV Size 465.76 GB / not usable 9.50 MB > Allocatable yes (but full) > PE Size (KByte) 32768 > Total PE 14904 > Free PE 0 > Allocated PE 14904 > PV UUID IAmE1f-dCMo-c035-cSQQ-g9yE-6yOo-mfKhHv > > --- Physical volume --- > PV Name /dev/sda2 > VG Name VolGroup00 > PV Size 465.66 GB / not usable 3.56 MB > Allocatable yes (but full) > PE Size (KByte) 32768 > Total PE 14901 > Free PE 0 > Allocated PE 14901 > PV UUID fi5A7U-dao0-ruuP-TSc0-LfFu-7yRL-iKnwGr > > --- Volume group --- > VG Name VolGroup00 > System ID > Format lvm2 > Metadata Areas 2 > Metadata Sequence No 3 > VG Access read/write > VG Status resizable > MAX LV 0 > Cur LV 2 > Open LV 2 > Max PV 0 > Cur PV 2 > Act PV 2 > VG Size 931.41 GB > PE Size 32.00 MB > Total PE 29805 > Alloc PE / Size 29805 / 931.41 GB > Free PE / Size 0 / 0 > VG UUID pwO7bQ-0eRs-W8O4-b4uf-hYe6-JIm6-27p8wu > > --- Logical volume --- > LV Name /dev/VolGroup00/LogVol00 > VG Name VolGroup00 > LV UUID avhFcY-30N6-2BPz-A89X-Ai0V-v5B7-xxzhIe > LV Write Access read/write > LV Status available > # open 1 > LV Size 929.47 GB > Current LE 29743 > Segments 2 > Allocation inherit > Read ahead sectors 0 > Block device 253:0 > > --- Logical volume --- > LV Name /dev/VolGroup00/LogVol01 > VG Name VolGroup00 > LV UUID ZW2z5f-5x58-0vDI-ru5S-iZge-mVE6-yVp160 > LV Write Access read/write > LV Status available > # open 1 > LV Size 1.94 GB > Current LE 62 > Segments 1 > Allocation inherit > Read ahead sectors 0 > Block device 253:1 > >And... > >[root at localhost ~]# df -h >Filesystem Size Used Avail Use% Mounted on >/dev/mapper/VolGroup00-LogVol00 > 901G 6.7G 848G 1% / >/dev/sda1 99M 18M 76M 20% /boot >tmpfs 1.9G 0 1.9G 0% /dev/shm >[root at localhost ~]# >yup, its all 1 Volume, you are going to need to shrink the lv's - then >get your volgroup onto /dev/sda only. info on howto do that is in the l>vm howto. also, I'd recommend you download the centos-5.1/livecd and >actually do the work once booted from the livecd. shinking filesystems >requires you to have the filesystem unmounted, so doing it from the >livecd is the only way you are going to manage it here. OK when you say livecd, do you mean the Centos 5.1 distro disks? I have a full set of them, a 7 disk set I got from Linux Central. Can I just boot off disk 1 from my set? ...or, if I left the install the way it is now, are there any dis advantages of leaving the file system the way it is - spread over two hard drives? Should just get another hard drive and back it up the way it is? Would ther be any problems with my backup if left the way it is? Or ahould I just do a complete re install of the OS after backing up my data... What do you reccomend -leave it as is, re configure it, or re install it? _________________________________________________________________ How well do you know your celebrity gossip? http://originals.msn.com/thebigdebate?ocid=T002MSN03N0707A

2 2

md raid1 - no speed improvement
by Kieran Clancy 23 Mar '08

23 Mar '08

Hi, I have two 320 GB SATA disks (/dev/sda, /dev/sdb) in a server running CentOS release 5. They both have three partitions setup as RAID1 using md (boot, swap, and an LVM data partition). # cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[1] sda1[0] 104320 blocks [2/2] [UU] md1 : active raid1 sdb2[1] sda2[0] 4192896 blocks [2/2] [UU] md2 : active raid1 sdb3[1] sda3[0] 308271168 blocks [2/2] [UU] When I do tests though, I find that the md raid1 read performance is no better than either of the two disks on their own # hdparm -tT /dev/sda3 /dev/sdb3 /dev/md2 /dev/sda3: Timing cached reads: 4160 MB in 2.00 seconds = 2080.92 MB/sec Timing buffered disk reads: 234 MB in 3.02 seconds = 77.37 MB/sec /dev/sdb3: Timing cached reads: 4148 MB in 2.00 seconds = 2074.01 MB/sec Timing buffered disk reads: 236 MB in 3.01 seconds = 78.46 MB/sec /dev/md2: Timing cached reads: 4128 MB in 2.00 seconds = 2064.04 MB/sec Timing buffered disk reads: 230 MB in 3.02 seconds = 76.17 MB/sec If I fail and remove one of the disks in /dev/md2: # mdadm /dev/md2 -f /dev/sda3 # mdadm /dev/md2 -r /dev/sda3 # cat /proc/mdstat ... md2 : active raid1 sdb3[1] 308271168 blocks [2/1] [_U] # hdparm -tT /dev/md2 /dev/md2: Timing cached reads: 4184 MB in 2.00 seconds = 2092.65 MB/sec Timing buffered disk reads: 240 MB in 3.01 seconds = 79.70 MB/sec So with only one disk in the array the performance is pretty much the same. At first I thought maybe the bottleneck is the SATA controller, but if I do simultaneous reads from both disks: # mkfifo /tmp/sync # cat /tmp/sync; hdparm -tT /dev/sda3 (and in another terminal, to make sure they start simultaneously) # > /tmp/sync; hdparm -tT /dev/sdb3 /dev/sda3: Timing cached reads: 2248 MB in 2.00 seconds = 1123.83 MB/sec Timing buffered disk reads: 234 MB in 3.00 seconds = 77.91 MB/sec /dev/sdb3: Timing cached reads: 2248 MB in 2.00 seconds = 1123.74 MB/sec Timing buffered disk reads: 236 MB in 3.01 seconds = 78.30 MB/sec So the total cached read bandwidth seems limited to about 2250 MB/s, which is slightly higher than the cache read bandwidth for /dev/md2, but I'm not too worried about that. More concerning is that I am still getting ~80MB/s from each disk simultaneously on the buffered reads. Given this I would expect /dev/md2 to give buffered read speeds of at least 120MB/s (if not 150MB/s). What can I do to track down this issue? Any help would be really appreciated. Thanks, Kieran Clancy.

6 5

Re: CentOS Digest, Vol 38, Issue 23
by Sam Drinkard 23 Mar '08

23 Mar '08

Ann, Actually I had to add read / execute permissions to the aliases.db to stop the error messages. I'd just like to know what clamav is doing to it or why it needs to read it. I installed the clamav with yum but for some reason it does not know it's in there. How to fix? Sam

2 1

about smbldap tools
by Arwen Smith 22 Mar '08

22 Mar '08

Hello List I'm installing a PDC with ldap using smbldap tools (IDEALX) it's allready configured but when i try to add an user using smbldap-useradd -m user it throw the following error: Error looking for next uid at /opt/IDEALX/sbin//smbldap_tools.pm line 993. can any body help me regard Roilan ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

2 1

PHP Segfaults on Centos 5 and PBX in a Flash but not Trixbox
by Nigel Kendrick 22 Mar '08

22 Mar '08

Hi Guys, Any known reasons why PHP 5 (Centos 5) might be segfaulting on an Asus A7V8X mobo with an Athlon 2400XP (1GB RAM). Everything else works fine and I had done some system/RAM tests so I am pretty sure the hardware's OK. Here's what I have found: Vanilla CentOS 5 - PHP segfaults yum remove/install PHP on above - PHP segfaults PBX in a Flash iso (based on CentOS5) - PHP segfaults Latest Trixbox (CentOS 5) iso (PHP 5.2.2-3) - OK I wonder if it may be down to compiler or optimisation flags. Any thoughts - Ideally I want to run PBX in a Flash. Thanks Nigel Kendrick

1 0

couple of problems
by Sam Drinkard 22 Mar '08

22 Mar '08

Hello all, I finally got spamass-milter and clamav-milter running, but have one error I've not been able to determine what is happening. From the log entry I see this line: SYSERR(sa-milt): hash map "Alias0": unsafe map file /etc/aliases.db: Permission denied: 39 Time(s) any pointers here? The 2nd item is with yum. I attempted to update, and wound up getting a fail on a dependency, yet the packages (clamav-db & clamd) are in fact installed. How do I use yum to tell it they are in the system? Thanks.. Sam

2 1

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