Server Maintenance

Free up disk space

• Remove unused docker images: docker image prune
• Remove unused packages: apt autoremove
• Clean up old journal logs: journalctl --vacuum-time=2d
• Clean up syslog: truncate -s 0 /var/log/syslog

Source: https://askubuntu.com/questions/5980/how-do-i-free-up-disk-space