greg@x1  ~ % ssh -vvvv gjg@phab1001.eqiad.wmnet
OpenSSH_7.4p1 Debian-10+deb9u4, OpenSSL 1.0.2q  20 Nov 2018
debug1: Reading configuration data /home/greg/.ssh/config
debug1: /home/greg/.ssh/config line 98: Applying options for *.eqiad.wmnet
debug1: /home/greg/.ssh/config line 106: Applying options for *.wmnet
debug1: /home/greg/.ssh/config line 138: Applying options for *
debug3: kex names ok: [curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256]
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 phab1001.eqiad.wmnet:22 bast4002.wikimedia.org
debug1: permanently_drop_suid: 1000
debug1: identity file /home/greg/.ssh/id_ed25519.wmfprod type 4
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_ed25519.wmfprod-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Debian-10+deb9u4
Password: 
Password: