Port List
I currently work
22 - SSH - Secure Shell
21 - FTP - File Transfer Protocol - Upload files into File share
22 - SFTP - Secure File Transfer Protocol - Upload files using SSH
80 - HTTP - to connect to websites (unsecured ones with no certs)
443 - HTTPS - to connect to secured Websites with Certificate
3389 - RDP - Remote Desktop Protocol - Log into Window Instance
53 - DNS Port
Disclaimer: This is a personal blog that might come in handy when I suffer from Dementia in future.