Misc. Commands
# Find all log files in /var/log
find /var/log/nginx -type f -name "*.log"
# Find all directories with the name 'log'
find / -type d -name log
# Look at your auth log
sudo cat /var/log/auth.log
# Find running node processes
ps aux | grep node
# Find every instance where Jem logged into your server
sudo cat /var/log/auth.log | grep jem
# See standard ports
less /etc/services