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Linux & Unix

Convert Linux deb and rpm packages into the respectively other format with alien

Sometimes you are forced to compile packages from source because they are not present in your current distribution's package format,…

Set lightdm wallpaper that is independant of the user’s wallpaper (Ubuntu/Linux Mint)

Using lightdm, the wallpaper that is shown is usually the one used by the selected user. If you want to…

‘Unable to open X display’ error on Cinnamon (Linux Mint)

You usually notice this error due to the lack of a menu bar and all kinds of window decoration after…

Change account picture in Linux Ubuntu and Mint

Other than in Windows, the account picture in Ubuntu and Mint isn't displayed in the login-screen but everytime you enter…

Restore GRUB bootloader after Windows installation on multi-boot system

Windows operating systems have the habit of installing their own bootloader on every installation - this wouldn't be a problem,…

Enhanced e-mail SPAM protection in ISPConfig 3

The command below enables a stricter SPAM handling for postfix on ISPConfig 3 servers. In Detail: Reject sender hostnames with…

How to Manually Install New Cinnamon Themes (Linux Mint/Ubuntu)

To manually install new themes for cinnamon from the page provided by Cinnamon Settings, first backup the data of the…

How to change the welcome email message text in ISPConfig 3

As of ISPConfig 3.0.4, the text of the welcome email message that is sent to new email accounts is stored…

Fix for OpenSuSE error: postfix/master: fatal: 0.0.0.0:smtps: Servname not supported for ai_socktype

You might see the error: postfix/master[5309]: fatal: 0.0.0.0:smtps: Servname not supported for ai_socktype On a OpenSuSE server when you enable…

How to Install New Icons and Cursors (Linux Mint)

The way to add new icons and cursors is simple yet not really obvious in Linux Mint. To add new…

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