To check are the following:
- if the right public key (id_rsa.pub) is uploaded to the git-server.
- if the right private key (id_rsa) is copied to /var/lib/jenkins/.ssh/
- if the known_hosts file is created inside ~/.ssh folder. Try
ssh -vvv [email protected]
to see debug logs. If thing goes well, github.com will be added to known_hosts.
- if the permission of id_rsa is set to 700 (
chmod 700 id_rsa
)
After all checks, try ssh -vvv [email protected]
.