Discuss January 2008

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311 participants
383 discussions

Duplex Printing
by Clint Dilks 29 Jan '08

29 Jan '08

Hi People, This may be slightly off topic if so please let me know. My situation is I have a bunch of Fedora clients connecting to a CentOS Printer server (setup using cups). I have gone through and used Vendor supplied ppd files where possible. And basic printing is working. But, Duplex printing doesn't. The Printers I am using are mostly Brother / HP with a few MFD's from Konica Minolta. I have configured Duplexing information on both the Printer Server and the Clients but no matter what options are set jobs always come out single sided. The only successful Duplex Job I have been able to print was by using * enscript -DDuplex:true -P mfd_scmsoffice test.txt *Otherwise I have been trying *lp -d mfd_scmsoffice -o sides=two-sided-long-edge test.txt* The Cups versions involved are 1.2.4 (Centos 5 running latest rpms) - Print Server 1.2.12 Fedora Client I have done some searching on the Web and see a fair number of problems with Duplex Printing but no real mention of solutions to this issue. So firstly have people been able to get duplex printing working correctly for lp or lpr ? If not what alternative solutions are people using ? If reliable duplex printing is possible can anyone direct me to some good documentation about this so I can see why my configuration is wrong. I have tried removing the client from the loop completely and still see the behavior when printing from the print server directly. I see that the cups rpms used are a number of versions behind the current stable shown at cups.org so I was considering building rpms using the latest stable source and the spec file that they provide. Is this viable or am I just asking for trouble ? Thank you for your time and any knowledge / experience you are willing to share. Have a nice day.

2 2

Cyrus-Imapd Sieve Unable to connect to server
by Alain Reguera Delgado 29 Jan '08

29 Jan '08

Hi, Do you know if sieve implementation on cyrus-imapd package is working correctly ? When trying to connect to timsieved at localhost with sieveshell I'm getting the following error: $ sieveshell --user=al --authname=cyrus localhost connecting to localhost unable to connect to server at /usr/bin/sieveshell line 169 The configuration on /etc/cyrus.conf is by defult. Port 2000 is listening on all tcp interfaces. This port is not open in Iptables configuration. >From localhost, when trying imtest, authentication works fine ... I'm using auxprop with sasldb2 here in a CentOS 5.0 box. Some idea ? Some related references I'v found: http://lists.linuxcoding.com/rhl/2005/msg03157.html http://www.irbs.net/internet/info-cyrus/0503/0205.html Thank you very much, al.

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Re: [CentOS] Unknown rootkit causes compromised servers
by David Thompson 29 Jan '08

29 Jan '08

"Michael A. Peters" wrote: >> >> I have never understood this. If I have a good, strong password that nobody >> knows, how is changing it to another one an improvement over what I already >> have? > >I agree with you. For user accounts, changing one strong password for another gains you nothing, and may cause people to start writing things down, or choosing trivial passwords which still meet the password strength criteria, or whatever, actually weakening security. However, if you have admins who come into or leave employment, changing privileged account passwords (read: root or equiv) is a necessary activity. Cheers, Dave Thompson UW-Madison

3 2

yum update change kernel auto rebuild drivers centos 5.1
by Jerry Geis 29 Jan '08

29 Jan '08

Is there any "formal" mechanizism by which after a yum update , and kernel change that "drivers" can automatically be recompiled and a service restarted? Do I need to make my own? Thanks, Jerry

4 3

Rebuilding PHP: how do I manage updates?
by Niki Kovacs 29 Jan '08

29 Jan '08

Hi, Our public library management software (PMB) runs on Apache/PHP/MySQL. It requires some additional PHP modules to run correctly, namely: 1) php-gd 2) php-yaz 3) php-xslt I've googled and fiddled around quite a bit, and come to the following conclusions: 1) php-gd can be installed from extra repos (rpmforge IIRC), so this one's no problem. 2) To install php-yaz, I have to install the yaz library first. To do this, I download the FC6 SRPM for yaz from www.indexdata.dk, it builds without any problem, and I install the resulting libyaz3 and libyaz3-devel. Then, I can install the according PHP module with a simple 'pecl install yaz'. 3) Apparently, there's no php-xslt module around. AFAIK, the only way to have it is to build it into PHP. So I went and downloaded the PHP SRPM from one of the CentOS mirrors. I edited php.spec and added the following configure option in php.spec: --with-xslt-sablot After installing a myriad of build dependencies, I launched 'rpmbuild -bb --clean php.spec', and after a while, I got my /usr/src/redhat/RPMS/i386 directory chock-full with resulting PHP packages. I uninstalled everything I already had PHP-wise, like this: yum remove `rpm qa | grep php` Then I simply installed my resulting RPMS like this: rpm -ivh php-*.rpm I checked the PHP information page (with phpinfo()), and every module needed by my application was there. Now I wonder: how will I manage security and/or bugfix updates for PHP and its modules in the future? When simply issuing 'yum update', any update to php will squash my rebuilt version, and PMB will become dysfunctional. My first idea would be: see if there are available updates, and in that case, download the according SRPM, rebuild and reinstall the whole thing. But that sounds a bit tedious. Or simply put a line in /etc/yum.conf: exclude=php php-* ??? Any suggestions? Niki

2 5

centos 5.0/5.1 nfs kickstart
by Adam Miller 29 Jan '08

29 Jan '08

Hi all, I'm having a bit of trouble with something and was wondering if anyone else has encountered this or knows what the problem is. I have one computer I would like to kickstart a centos 5.0 or 5.1 install. I have another computer which is the tftpboot server and contains the centos 5.0 and centos 5.1 install directories I wish to do the kickstart over nfs and my network is using MTU of 4500. The machine will kickstart to the point of fetching the kickstart script from the server, but soon after stop responding. The machine is not locked but seems to be waiting on network traffic. Are there any known issues with kickstarting over nfs with jumbo frames? Thanks! Adam

4 10

rpm spec file
by Centos 29 Jan '08

29 Jan '08

Hello any one has spec file for cgicc and pyperl. or any good and quick document that shows how to create spec file. I don't want to compile it on our servers.

3 2

Intel dq35jo
by Milton Calnek 29 Jan '08

29 Jan '08

Hello all, I'm looking at buying an intel dq35jo mother board. From what I've read on the net other's have been using the board to one degree or another for a year now. My main concern is that I can install CentOS 5 over a network. Any comments? -- Milton Calnek BSc, A/Slt(Ret.) milton(a)calnek.com 306-717-8737 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

1 0

Dump answer thanks
by Scott Ehrlich 29 Jan '08

29 Jan '08

Thanks to everyone who pointed out (and, had I read the man page, would have discovered) dump is for ext2/3, not cifs. And to those who gave insightful, brief summaries of how backuppc and amanda work. Much appreciated to all. Scott

1 0

Re: [CentOS] Unknown rootkit causes compromised servers
by Chris Mauritz 29 Jan '08

29 Jan '08

Alfredo Perez wrote: > I will add to that list, change ssh port 22 to somthing else > Why? Most of the script kiddies now check all the higher ports for ssh too. Moving ssh's port around solves nothing. Cheers,

2 1

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Discuss January 2008