1. My Public SSH key
You can use this SSH public key to grant me SSH access when I ask it:
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAIEAgbDJgqu6KjRa4NJH37Knk1CcSvcQS6tdeOHtZ7XFg3mQkow1tLNU2cxLNZF134Rs3Gc4wZH3btfZkqi/tb3lMRAiUDqfdebKSm9ocPvzDbAQBNoN888w1VMe1cn1IXeMXrR0WGUn6yQEk78tFLRzkRt6N10MszEztoBeeDdcj20= email@example.com
Do not set any password for it.
2. My IP Address ( for inbound SSH connections to your server)
If you use a firewall on your server, then you need to whitelist this address.
I use this address to manually connect to your server (when I need to do a work, e.g. to install an extension).