I recently managed to connect to office communicator under linux. First I installed pidgin-sipe and configured my account. But something seemed to be wrong with the ssl communication. So I copied over all ssl certificates from pidgin: cd ~/.purple/certificates/x509/tls_peers && sudo find . -type f -exec cp {} /etc/ssl/certs/{}.pem ;; sudo chmod a+r /etc/ssl/certs/* Then […]
Office Communicator under Ubuntu 12.04 Read More »
see http://www.postgresql.org/about/news/1415/ for further information about the new features. To install it in ubuntu you could use Martin Pitt’s ppa under https://launchpad.net/~pitti/+archive/postgresql sudo apt-add-repository ppa:pitti/postgresql sudo apt-get update sudo apt-get dist-upgrade sudo apt-get install postgresql-9.2 postgresql-client-9.2 WARNING: This won’t upgrade your 9.1 if you’ve already installed that. Of course you could get rid of your database with apt-get
PostgreSQL 9.2 released Read More »
After a few weeks with a self signed SSL certificate I had a closer look at the site statistics and as thought before still lots of people don’t visit a site behind a self signed certificate. Because I don’t want to spend money for a certificate I made the whole site accessible via http instead
Conclusio self signed SSL certifacte Read More »
I was just messing around with postgresql and table partitions and tablespaces. Here is a short SQL script that uses a virtual table that is partitioned by the modulus of the id column. Each partition lies on a different tablespace and in the schema partition. begin; drop table if exists partition.test_0; drop table if exists
PostgreSQL Table Partitioning Read More »
Some time ago I noticed that several programs have no icons in menus though they always had. I really didn’t like the lack of icons in eclipse so I was looking for a solution for this. I found two working solutions. Install dconf-tools and run dconf-editor to set two keys to true: org.gnome.desktop.interface.menus-have-icons org.gnome.desktop.interface.buttons-have-icons Install
Menu Items have no icons in Ubuntu 12.04/gnome3 Read More »
Window borders are very thin (1px) since ubuntu 11.10. So here is how to make borders clickable again. I use the Radiance theme, so the file to edit is /usr/share/themes/Radiance/metacity-1/metacity-theme-1.xml. There you have the values left_width, right_width and bottom_height all with the value 1. Just edit the value to let’s say 3px to make it
Ubuntu 12.04 Window Borders Read More »
chroot is a great tool to rescue systems. But a limitation is that /dev, /sys and /proc are not mounted by default but needed for many tasks. This can be done by using mount –bind on the host. Here an example how to get a functional chroot: mount –bind /proc /target/proc mount –bind /dev /target/dev
chroot and dev, proc, sys Read More »
If you want to share a single mouse+keyboard with two (or even more) workstations, you can use x2x which has to be installed on every station – a ssh-server is also needed. Then you are able to connect the stations by ssh -X username@remote_host -C “x2x -east -to :0” After this command you are able to
Connect Desktops with x2x Read More »
If you don’t want a guest account just add allow-guest=false to /etc/lightdm/lightdm.conf
Disable Guest Account in Ubuntu 12.04 Read More »
I don’t want my login screen to beep. So I looked for a way to mute it. I couldn’t find a way to do this over a menu or another configuration. After looking a while I decided to move the soundfile away by the following command sudo mv /usr/share/sounds/ubuntu/stereo/system-ready.ogg /usr/share/sounds/ubuntu/stereo/system-ready.ogg.old Now my login screen is
Mute Ubuntu 12.04 Login Screen Read More »