• https://wiki.ubuntuusers.de/SSH/
• https://www.drupal.org/user/3026999/ssh-keys
• https://help.github.com/en/articles/connecting-to-github-with-ssh

albin@gendoas:~/.ssh$ ssh -v drupal

OpenSSH_7.2p2 Ubuntu-4ubuntu2.6, OpenSSL 1.0.2g 1 Mar 2016 debug1: Reading configuration data /home/albin/.ssh/config debug1: /home/albin/.ssh/config line 7: Applying options for drupal debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to git.drupal.org [140.211.10.58] port 22. debug1: Connection established. debug1: identity file /home/albin/.ssh/id_rsa type 1 debug1: key_load_public: No such file or directory debug1: identity file /home/albin/.ssh/id_rsa-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.6 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u6 debug1: match: OpenSSH_7.4p1 Debian-10+deb9u6 pat OpenSSH* compat 0x04000000 debug1: Authenticating to git.drupal.org:22 as 'gendoas' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server→client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: kex: client→server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:FeJiekFTTnXWc1GDUfFVcRckyZkZfdmks1dSqtS6OVg debug1: Host 'git.drupal.org' is known and matches the ECDSA host key. debug1: Found key in /home/albin/.ssh/known_hosts:1 debug1: rekey after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey after 134217728 blocks debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521> debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/albin/.ssh/id_rsa debug1: Authentications that can continue: publickey debug1: No more authentication methods to try. Permission denied (publickey).