Tin's Journey - Enter a journey into a sysadmin world

debian-multimedia is now deb-multimedia

May 12, 2012 Tin' No comments

Christian Marillat, who’s well known for packaging multimedia application for debian, has change his domain name from debian-multimedia.org to deb-multimedia.org.

Hi,

debian-multimedia.org is now deb-multimedia.org

All services are working (see below). If you intent to change the path
in the mirror URL, tell me I’ll update my mirors page.

,—-
| rsync://www.deb-multimedia.org/deb
| http://www.deb-multimedia.org
| ftp://www.deb-multimedia.org
`—-

Christian

So in order to be compliante with him, Gnali.org is changing its mirror site to deb-mutimedia.gnali.org. Please update your apt source.list file. Old domain name will be still available for few weeks.

deb-multimedia none

zfs under Linux

April 14, 2011 Tin' 2 comments

As a sysadmin, I have to deal with a bunch of filesystems. On the paper the sexiest one is ZFS (if your forgot the fact that you can’t remove device). But ZFS has been released under the CDDL license which is incompatible with the GNU GPL. That’s why ZFS is not in the Linux Kernel. Thanks to fuse there’s a way to install it under Linux.

Day to day sys administration Linux, zfs

Install Citrix Receiver on a debian 64bit

April 13, 2011 Tin' 6 comments

When you work in a company where being on duty is mandatory, you probably have to use Citrix Receiver . Unfortunatly, the Linux version is not available for 64 bits arch. So here a little documentation to install it on a Debian Squeeze.

Day to day sys administration Citrix debian amd64 onduty

debian-multimedia mirror ready for Squeeze

February 9, 2011 Tin' No comments

Following release of the news Debian 6.0 “Squeeze”, debian-multimedia mirror on Gnali has been updated.

sid -> unstable
squeeze -> stable
stable
   |- binary-amd64
   |- binary-armel
   |- binary-i386
   |- binary-ia64
   |- binary-kfreebsd-i386
   |- binary-mipsel
   |- binary-powerpc
   |- binary-sparc
   |- source
testing
unstable
wheezy -> testing

alpha and hppa arch has been removed from this release, as the oldstable distrib, so remember to update your apt source.list file.

Thanks to Christian Marillat for his awesome work !

deb-multimedia debian-multimedia squeeze wheezy

Tuning Linux for Oracle

August 16, 2010 Tin' 1 comment

If you ever administrate a server hosting an oracle database, you probably had to play with kernel parameters in the sysctl.conf file like shmmax, shmmin, semmns, semopm and few more. Those parameters are used to configure the shared memory and semaphores in order to make Oracle to run properly, but you also need to tune the file handles, the IP local port range, some networking settings and shell limits for the oracle user.

In this post, I will explain how to configure this settings regarding oracle recommendations, but over all what this parameters mean. For production database systems, Oracle recommends that you tune these values to optimize the performance of the system.

Day to day sys administration shared-memory semaphores oracle linux tuning

PTY allocation request failed on channel 0, stdin: is not a tty

August 9, 2010 Tin' No comments

Gnali.org is currently running on a ovh cluster hosting lxc container with opensvc. Physical host are running debian squeeze, as most of the container on it run debian lenny. But there is on one of them which is under Ubuntu lucid.

Today after upgrading the physical host (let’s call it the hypervisor node), and reboot it, I wasn’t able to connect to the Ubuntu container. I got a strange error while connecting through ssh :

$ sudo ssh gliprdweb02
PTY allocation request failed on channel 0
stdin: is not a tty

After googling a while I found an article on Emanuelis Eu which made me correct this error. I have to apologize to the author if I just copy and paste his post thereafter, but then I will be able to find the solution easily if the error occurs again.

Improving Gnali.org lxc ubuntu ssh pty

Recreate empty /etc/mnttab

July 22, 2010 Tin' No comments

If df or mount command return nothing it’s probably because /etc/mnttab is empty, so try to unmount it

umount /etc/mnttab

and then remount it

mount -F mntsfs mnttab /etc/mnttab

Day to day sys administration, Twit solaris df mnttab

Setting up a git repository with http basic authentification

July 21, 2010 Tin' No comments

In the company I actually work the connection to internet is going through a proxy which is not very permisive. It only allow us http and https, and block all ssh communication. So in order to work on some work project from my home, I had to put in place a git repository on a distant site but I didn’t want everybody to get access to it.

This post is an how-to set up a git repository which can be pushed into and pulled from over http with basic authentification.

Day to day sys administration git http auth

Configure exim4 to use gmail as relayhost

March 21, 2010 Tin' 2 comments

As you may know Gnali.org is one of the two french mirror for Christian Marillat debian packages debian-multimedia.org.

In order to be sure that mirroring is well updated every night I use debmirror every day at 2:00 AM, which send me a mail with the output.
I was tired of dealing with my own mail server so I decided to use my gmail account as a relayhost.

This post will explain you how to configure exim4 as a smarthost to use gmail as a relayhost.

Improving Gnali.org exim gmail relayhost