Sometimes I want ssh to just connect and not ask me for the remote password. By sometimes, I mean last time was 2 years ago.
This works on my mac, your mileage will vary
Make some keys
I like to create unique keys for each site and store them away, for reasons..
$ ssh-keygen -t rsa Enter file in which to save the key (~/.ssh/id_rsa): ~/.ssh/id_rsa_EXAMPLE_TLD passphrase: REDACTED passphrase again: REDACTED bla bla bla info about the fingerprint & ascii art
Ensure there is a ~/.ssh/ folder on remote
Note: you may have to change permissions on the remote .ssh folder and .ssh/authorized_keys
$ ssh MYUSERNAME@EXAMPLE.TLD mkdir -p .ssh
Send our newly minted public key to the remote
$ cat ~/.ssh/id_rsa_EXAMPLE_TLD.pub | ssh MYUSERNAME@EXAMPLE.TLD 'cat >> ~/.ssh/authorized_keys && chmod 644 ~/.ssh/authorized_keys'
Tell OSX to use our key for this server
$ vim ~/.ssh/config
Host example.tld Hostname example.tld IdentityFile ~/.ssh/id_rsa_EXAMPLE_TLD User MYUSERNAME
Test it out by connecting to it
$ ssh MYUSERNAME@EXAMPLE.TLD Welcome to EXAMPLE.TLD Last Login: TIMESTAMP from YOURIP MYUSERNAME@EXAMPLE.TLD $ _