Linux

• Adding swap
• Bash scripts
• Changing the hostname
• Finding duplicate files
• Fixing locale issues
• Grub
• Parted
• Parsing logs with grep
• Pfsense
• Iptables
• Raid info
• Repository adding
• Resizing volumes
• Rsync
• SSN
• Time
• Java disable MD5
• Purge old kernels
• Rsync a file or dir between servers with sudo