using Lua:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Allow_IP = {}; --Put authorized IP's(remote rcon check) Allow_USGN = {}; --Put authorized USGN's(normalCheck) function auth_rcon ( c, p, ip ) if (p~=0) then 	if Allow_USGN[player(p,"usgn")]==true then 	 msg2(p,"You aren't authorized for rcon."); 	return 1 	else 	return 0 	end elseif (p==0) then 	if Allow_IP[ip]==true then 	return 0 	else 	return 1 	end end end addhook('rcon','auth_rcon');
Basically, add the USGNs and IPs that you want to allow to use it (remember to allow 127.0.0.1 and your static ip if you want yourself to be able to use rcon in a dedi svr.)