Just as in Windows you have the option to rotate your screen into any direction in Linux, too. While in Windows you only need to press some keys, a key combination is not configured in Linux by default. But as you may have figured out, there are some terminal commands that let you do the ... Read more
It may occur that by default your computer won't connect to wireless networks after starting up the system. A way to solve this might be to install the WICD network manager which is available in the Ubuntu repositories. Just fire up Synaptic Package Manager and search for WICD. During installation, you will be asked to ... Read more
Linux Mint 13 plays a sound when you start the system as well as when you log into an account. Both of these sound can be changed - to do so, you must be logged in and know the root password. - Open the main menu and go to Administration > Login Window. - Go ... Read more
Ubuntu: To uninstall VirtualBox Guest Additions on Ubuntu and similar operating systems, mount the virtual disk again that you used to install them - to do that, click on the Devices menu on the virtual machines top menu bar and select Install Guest Additions. If you get a pop-up about auto-start procedures just cancel it. ... Read more
Sometimes you are forced to compile packages from source because they are not present in your current distribution's package format, which can be really annoying. While this is the safer option, there is also a quicker alternative, which is converting existing packages into the one you need with alien. sudo apt-get install alien Before you ... Read more
Using lightdm, the wallpaper that is shown is usually the one used by the selected user. If you want to change this or just set a static wallpaper for your login screen, there are a few possibilities to do that. 1. Method The first one is to make your wallpaper inaccessible to others, letting lightdm ... Read more
You usually notice this error due to the lack of a menu bar and all kinds of window decoration after you unsuccessfully played with your Cinnamon settings or just suffered some kind of other error. If you then try to reset Cinnamon or to use any other command involving the desktop environment, you will get ... Read more
Other than in Windows, the account picture in Ubuntu and Mint isn't displayed in the login-screen but everytime you enter your password for authentication as well as in the user selection applet in Ubuntu. To change it, open the main menu and type in user accounts. On the window that pops-up upon opening the application, ... Read more
The command below enables a stricter SPAM handling for postfix on ISPConfig 3 servers. In Detail: Reject sender hostnames with invalid syntax Reject sender hostnames that are no fully qualified domains (e.g. reject "server1" but allow server1.domain.tld) Reject sender domains that have no DNS records Check sender IP addresses against realtime blacklists. First make a ... Read more
To manually install new themes for cinnamon from the page provided by Cinnamon Settings, first backup the data of the original theme by opening a terminal and entering sudo cp -R /usr/share/cinnamon/theme /usr/share/cinnamon/theme_backup Then download and unpack another theme from http://cinnamon-spices.linuxmint.com/themes, save the files to some location - I will save them on my desktop. ... Read more