r-click ONCE @ PuTTY for pasting password, then enter — you likely won’t see anything after pasting but know that you have pasted

Check used ports: netstat -tulpn|less

Type a random # between 0-65535 that’s not shown (e.g. 47687) > press Enter > press q
Open SSH config file: nano /etc/ssh/sshd_config > type: port 47687 > ctrl + x > y > enter
REDO ABOVE BECAUSE ERROR WRITING (ref. https://www.transip.eu/knowledgebase/entry/594-want-to-use-commandline-ssh/)
Then perform updates: https://www.transip.eu/knowledgebase/entry/594-want-to-use-commandline-ssh/

Then note/add DNS records