You should ensure that (1) password authentication is disabled, (2) existing ssh keys are recycled (if only password authentication was used earlier, generate t

You should ensure that (1) password authentication is disabled, (2) existing ssh keys are recycled (if only password authentication was used earlier, generate those [2]). Subsequently, refer to "Essential Security for Linux Servers" [0] and "7 Security Measures to Protect Your Servers" [1]. [0] https://plusbryan.com/my-first-5-minutes-on-a-server-or-essential-security-for-linux-servers https://plusbryan.com/my-first-5-minutes-on-a-server-or-esse... [1] https://www.digitalocean.com/community/tutorials/7-security-measures-to-protect-your-servers https://www.digitalocean.com/community/tutorials/7-security-... [2] https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2 https://www.digitalocean.com/community/tutorials/how-to-set-...