how to block VPN access from external systems , where OPEN Vpn client and config files are copied?
user x was working with our company, he left the company , but vpn access has been given to his personal laptop when he was working with the company.When he left , we dont have access to his system to uninstall / Remove VPn and config files (he might have copies of config files also). in this case , how can i block him accessing our internal network and vpn ? (dont have an option to get his system mac address,also it can be easily snoofed)
