$ ssh tin.eqiad.wmnet -v
OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /home/ed/.ssh/config
debug1: /home/ed/.ssh/config line 8: Applying options for *.eqiad.wmnet
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Executing proxy command: exec ssh -a -W tin.eqiad.wmnet:22 bast1001.wikimedia.org
debug1: permanently_drop_suid: 1000
debug1: identity file /home/ed/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ed/.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-4ubuntu2.1
Password: