So I followed the guide on how to add a SSH key to GitHub, and added a new SSH key with a passphrase to GitHub and the SSH agent. Now, if I run
ssh -T firstname.lastname@example.org as described in the guide to test if I set everything up correctly, it doesn't even prompt me for my passphrase, but immediately returns
ssh: connect to host github.com port 22: Connection refused. I have both
openssh-client installed and the SSH service is running.
Help would be appreciated.
UPDATE: When I try and clone a repository which for which I have write access from a friend's GitLab instance, it throws the same error. Seems like this is a problem with SSH, not with the keys. (I have them added to the instance.)