mod_host_guard

Details

As often it's undesiderable to employ only whitelisting logics in public environments, this module let's you more selectively restrict access to your hosts (component or server host) either disallowing access completely (with optional exceptions) or blacklisting certain sources.

Usage

Copy the plugin into your prosody's modules directory. And add it between your enabled modules into the global section (modules_enabled):

Configuration

Option name Description
host_guard_blockall A list of local hosts to protect from incoming s2s
host_guard_blockall_exceptions A list of remote hosts that are always allowed to access hosts listed in host_guard_blockall
host_guard_selective A list of local hosts to allow selective filtering (blacklist) of incoming s2s connections
host_guard_blacklist A blacklist of remote hosts that are not allowed to access hosts listed in host_guard_selective

Example


host_guard_blockall = { "no_access.yourhost.com", "no_access2.yourhost.com" } -- insert here the local hosts where you want to forbid all remote traffic to.
host_guard_blockall_exceptions = { "i_can_access.no_access.yourhost.com" } -- optional exceptions for the above.
host_guard_selective = { "no_access_from_blsted.myhost.com", "no_access_from_blsted.mycomponent.com" } -- insert here the local hosts where you want to employ blacklisting.
host_guard_blacklist = { "remoterogueserver.com", "remoterogueserver2.com" } -- above option/mode mandates the use of a blacklist, you may blacklist remote servers here.

The above is updated when the server configuration is reloaded so that you don't need to restart the server.

Compatibility