Ubuntu
Blocking .exe attachments with postfix or amavisd-new and ISPConfig 3
If you use postfix and / or amavisd-new on the mail server, you can use the following recipes to block…
How to enable DKIM email signatures in amavisd-new and ISPConfig 3.0
NOTE: This post is about ISPConfig 3.0 and not 3.1 and newer. ISPConfig 3.1 and newer has DKIM support builtin,…
[SOLVED] E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
You get the following error message while installing a .deb package on Debian or Ubuntu or while installing Updates? E: Could…
How to change size of system tray icons in Ubuntu
Ubuntu's Unity graphical shell is pretty good when it comes to customization. Just think of a change, and you'll find…
How to trigger system shutdown in Ubuntu from Unity launcher
While shutting down (or other similar operations like restarting and logging-out) aren't difficult to launch in Ubuntu (you can find…
How to enable/disable ‘Recent’ option in nautilus sidebar in Ubuntu 16.04
Sometimes, it helps save precious time if you can quickly access recently-opened files. In Ubuntu, the file explorer that ships…
How to bring back “Open New Terminal” option in terminal icon’s right-click menu on Ubuntu 17.04
Have you recently upgraded your Ubuntu machine from version 16.10 to 17.04? Are you missing the "Open New Terminal" option…
How to display dialog box containing Lock, Suspend, Restart, and Shutdown icons from command line in Ubuntu
If you are an Ubuntu user, you might have observed the dialog box that gets displayed when you quickly press…
How to enable/disable Alt+Tab type switching for windows of same application in Ubuntu
If you are one of those who prefer using keyboard over mouse wherever and whenever possible, I am sure you…