https://www.redhat.com/en/blog/eight-ways-secure-ssh Eight ways to protect SSH access on your system
https://www.reddit.com/r/homelab/comments/1i9kocm/rant_stop_discouraging_people_to_change_ssh_port/ [Rant] Stop discouraging people to change SSH port : r/homelab
https://www.ssl.com/article/basic-primer-for-securing-ssh/ Essential Ways to Secure Your SSH Configuration - SSL.com
https://www.reddit.com/r/homelab/comments/5pydet/so_youve_got_ssh_how_do_you_secure_it/ So you've got SSH, how do you secure it? : r/homelab
https://grapheneos.org/ GrapheneOS: the private and secure mobile OS