20 		end

    20 		end

    21 	end

    21 	end

    22 

    22 

    23 	for session in pairs(prosody.incoming_s2s) do

    23 	for session in pairs(prosody.incoming_s2s) do

    24 		if session.type ~= "s2sin_unauthed"

    24 		if session.type ~= "s2sin_unauthed"

    25 		and (not(keepalive_servers) or keepalive_servers:contains(session.from_host)) then

    26 		and (not(keepalive_servers) or keepalive_servers:contains(session.from_host)) then

    26 			if not s2sout[session.from_host] then ping_hosts[session.from_host] = true; end

    27 			if not s2sout[session.from_host] then ping_hosts[session.from_host] = true; end

    27 			session.sends2s " ";

    28 			session.sends2s " ";

    28 			-- If the connection is dead, this should make it time out.

    29 			-- If the connection is dead, this should make it time out.

    29 		end

    30 		end