This action attempts to begin hosting the Relay Server. It takes one parameter, which is the Flash Policy XML file to host.

It will always host on port 843, as that is the Flash requirement.

This may trigger an error, for instance, when there is already a server (of any kind) hosting on port 843, or if the file can't be used.


If you want to figure out how to access it, you should refer to the Hosting a server page; and remember to apply those steps to the Flash policy port 843 (e.g. 843 and 6121 must be unblocked in firewall and port forwarded).


A policy file is a particular file used to tell Flash applets that a valid Flash-compatible server is hosting on that IP/domain. For example, to host a Lacewing server from port 6121, a text file with these contents will suffice:


<?xml version="1.0" ?>

<!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dtd">

<cross-domain-policy>

<site-control permitted-cross-domain-policies="master-only"/>

<allow-access-from domain="*" to-ports="843,583,6121" secure="false" />

</cross-domain-policy>


You can literally copy out the above text and save it in Notepad, and use it as a policy file.


Note the domain="*" wildcard, which allows connections from any client IP, and the to-ports="843,583,6121", which must include your server's hosting port that you pass to Relay Server > Host.