Server through a firewall or proxy?
There is no single answer to this question, because there are many different kinds of firewalls in use. They work in various different ways and have various different security policies. This answer can only provide hints. Note that you can’t access Internet Chess Servers through a Web proxy, because they are not a Web service. You talk to them through a raw TCP connection, not an HTTP connection. If you can only access the Web through a proxy, there may be a firewall that stops you from making direct TCP connections, but there may also be a way through it. Read on for hints, and contact your local system administrator if you need more information about your local configuration. If you are using a non-SOCKS firewall, read the FIREWALLS section in your XBoard or WinBoard documentation (man page, info document, or Help file). If you can telnet to a chess server in some way, then you can almost certainly connect to it with xboard/WinBoard, though in some cases you may not be able to run ti
