Hi Misha,
The easiest way to setup a connection to a remote PVServer is by SSH port forwarding.
ssh -L <local-pvserver-port>:127.0.0.1:<host-pvserver-port> <user>@<host>
With the default settings, local-pvserver-port and host-pvserver-port can be set to port 11111.
In ParaView you can now connect to the remote PVServer the same way you would connect to a localhost PVServer.
Note that with the command above, the terminal needs to be left open to maintain the connection.
Best,
Max