I've configured SSLVPN on Cisco ASA 5540 to authenticate using Windows AD by providing DomainController information. Though the authentication is working, I'm bit concerned about the security as this method of authentication mechanism would expose remote access to every other account on Windows AD (including service accounts).
Is there a mecahnism / way to restrict the authenticate to specific group of users while using Windows AD for authentication on Cisco ASA for SSLVpn?
Please note: There is no ACS server available on the network.
Appreciate quick help on this,