I have a server and make it as a VPN server for my employees , so my employess access internet on that server via VPN connection.
Because the number of users are rather high I used radius server and Nttacplus as a authentication software.
I notice one unknown users with fixed IP is get online via VPN with strange username and after I check I found out he access our server illegally. I think it is a bug in my authentication software
I want to know is there anyway I block that IP from accessing my VPN server .
for example is there any option in RAS to can block that IP so that user can't access to my server via VPN.