Category: Linux

Convert CRT and KEY files to PEM files

Typically I only do this if I need to run a server that uses PEM’s only. Convert CRT to PEM openssl x509 -in SOURCE.crt -out SOURCE.crt.der -outform DER This will make a DER file that can be removed afterwards. openssl

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How to install MariaDB on Ubuntu

Here is the best link to the installation procedures that is available. https://downloads.mariadb.org/mariadb/repositories/#mirror=aarnet_pty_ltd

Adding user to an existing group

I’ve always needed this quick snippet when adding users to existing groups. Here it is. usermod -a -G groupName userName

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How to create swap memory for your Linux server

Firstly we’d confirm how much memory you have on your server: free -m There’s no definitive rule when it comes to how much swap is enough, but try somewhere between 1-2 times the amount of physical RAM your server has.

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How to install GD on Ubuntu

This little tidbit is a life saver! sudo apt-get install libgd2-xpm-dev

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