Currently, the websockets and zmq connections to busgateway01 are handled only by proxy01.

Seth set up an a-record pointing hub.fedoraproject.org at the external IP for proxy01. External requests for websockets or zmq connections are all pointed there and don't get balanced across our proxies.

When we were first setting this up, websocket and zeromq connections seemed very special, so we isolated them to one proxy and one socket server, both inside phx2. In retrospect, it seems like a better idea to have all the proxies be able to forward connections to busgateway01 for balancing, robustness, and simplified maintenance. This requires:

• Adding busgateway01 to the vpn (I'm not sure what all that entails).
• Changing or removing the hub.fedoraproject.org A-record.
• Merging proxy01's special haproxy config back into the general haproxy config.