Setting a Default Username
If your username is different on your tilde than on your personal computer,
you may want to specify a default username in
That can be done by adding the following entries:
Host tilde.black User user
Using a Tilde-Specific key
Step 1: Generate Your Key
Generate a key, except outputting to a Tilde-specific location.
mkdir -p ~/.ssh/tilde.black ssh-keygen -a100 -ted25519 -f ~/.ssh/tilde.black/id_ed25519 -C ''
Step 2: Authorize Your Key
If you have yet to sign up to your desired Tilde,
send the public key (
~/.ssh/tilde.black/id_ed25519.pub) to the admin.
If you already have an account, you can authorize your new key by adding it to,
or replacing your old key in,
$ scp ~/.ssh/tilde.black/id_ed25519.pub firstname.lastname@example.org:key.pub $ ssh email@example.com tilde$ cat key.pub >> .ssh/authorized_keys tilde$ rm key.pub
Step 3: Configure SSH
ssh(1) only use that key for that tilde, you can add the following
Host tilde.black IdentitiesOnly yes IdentityFile ~/.ssh/tilde.black/id_ed25519