I've got often this error on just one server: Err http://de.archive.ubuntu.com precise/universe amd64 Packages 404 Not Found [IP...
Note that you cannot currently use Ruby 1.9.2 with Rails 2 applications that use RSpec, so don't upgrade if...
If you are exchanging files with a client via Dropbox you do not need to access the Web page every...
You probably already manage servers you often connect to inside the ~/.ssh/config file. What is nice: you may define alias...
In order to rename your Ubuntu box, replace all occurences of the the old name in the following two files: /etc/hostname /etc/hosts After a reboot your hostname is changed. If...
...you don't want to reboot your Ubuntu box you have to execute hostname your.hostname...
Ubuntu is phasing out the notification area (a.k.a. “system tray”), because of its ineffectiveness at notifying people of things, and its inconsistent behavior. Many programs that previously used the notification...
Use the PDF toolkit: sudo apt-get install pdftk To rotate page 1 by 90 degrees clockwise: pdftk in.pdf cat...
After a new system installation, Ubuntu One starts automatically and seems to try to sync your complete home directory. This slows down the Nautilus File Manager extremely. To prevent this...
...uncheck Ubuntu One from your start programs and restart the system...
...not work even though the front mic input did fine. The Pulse Audio mixer (= Ubuntu default) does not offer any complex controls to fix the issue. Instead, run gamix (be...
You need to disable "Bluetooth low energy", then follow these core steps: Make sure the headphones are in pairing mode...
Usually, the logrotate service takes care of renaming log files each night or so to avoid logs becoming huge. That...
dmesg shows the kernel ring buffer containing low-level system messages. Per default, dmesg shows a timestamp:
I have a pair of headphones connected to my desktop's back panel and a headset connected to the front...
If you want to use Require group $GROUPNAME on your default Apache installation like this: Order allow,deny Allow from...
Keyboard layout reverting to US on (every) reboot Cause: I found the same problem, but only on my wife...
Every time I started RubyMine, it opened the main window on the left monitor -- when moving it to the center...
If you want to install rabbitmq plugins on Ubuntu 12.04 you can do this with: /usr/lib/rabbitmq/lib/rabbitmq_server-2.7.1/sbin/rabbitmq-plugins This binary is not in your default $PATH. Beause of this you have to...
The Ubuntu Documentation on LaTeX says, that the packages tetex are no longer supported. You can install the alternative texlive (380 MB) via apt-get. sudo apt-get install texlive
Great blog with daily news and HOWTOs for Ubuntu, Linux and Gnome...
One of the more controversial changes in the Ubuntu 10.04 beta is the Mac OS-inspired change to have window buttons on the left side. We’ll show you how...
Note that converting from RGB to CMYK will usually degrade your colors because no exact mapping is possible. Anyway, this...
To add a new panel in MATE: Right-click on an existing panel and choose New Panel
Open the configuration file: gksudo gedit /usr/share/vte/termcap/xterm Find a line like this: :co#80:it#8:li#24:\
To get your F12 key back for other shortcuts, stop Tilda: killall tilda To prevent Tilda from starting on boot...