USER and OS: Configure your own user and setup daily OS upgrades.
# Change root pw: passwd # add personal user adduser USERNAME # add user to sudo group adduser USERNAME sudo # install unattended upgrades package... sudo apt-get update sudo apt-get install unattended-upgrades # ... and enable sudo dpkg-reconfigure --priority=low unattended-upgrades
FIREWALL: Install firewall and setup. You may want to change SSH port. Make sure to first allow ssh (so that you will not be excluded from your own server), allow the new port and once connected successfully,