Started following T326368: gerrit1003 service implementation task:
$ ssh -4 bd808@gerrit.wikimedia.org -p 29418 **** Welcome to Gerrit Code Review **** Hi BryanDavis, you have successfully connected over SSH. Unfortunately, interactive shells are disabled. To clone a hosted Git repository, use: git clone ssh://bd808@gerrit.wikimedia.org:29418/REPOSITORY_NAME.git Connection to gerrit.wikimedia.org closed. $ ssh -v -6 bd808@gerrit.wikimedia.org -p 29418 OpenSSH_9.3p1, OpenSSL 1.1.1t 7 Feb 2023 debug1: Reading configuration data /Users/bd808/.ssh/config debug1: /Users/bd808/.ssh/config line 88: Applying options for gerrit.wikimedia.org debug1: /Users/bd808/.ssh/config line 115: Skipping Host block because of negated match for gerrit.wikimedia.org debug1: /Users/bd808/.ssh/config line 123: Skipping Host block because of negated match for gerrit.wikimedia.org debug1: /Users/bd808/.ssh/config line 128: Applying options for * debug1: Reading configuration data /usr/local/etc/ssh/ssh_config debug1: auto-mux: Trying existing master debug1: Control socket "/Users/bd808/.ssh/sockets/ab28dff4d65d2c92d57ac0a0f837c84a6fc42cc6" does not exist debug1: Connecting to gerrit.wikimedia.org [2620:0:861:2:208:80:154:151] port 29418.
Current workaround: add AddressFamily inet to the Host gerrit gerrit.wikimedia.org block in my $HOME/.ssh/config.