It is sometimes desirable to allow access to open ports on a firewall only to authorized external users and present closed ports to all others. We examine ways to construct an au...
Rennie deGraaf, John Aycock, Michael J. Jacobson J...
Port knocking is a technique first introduced in the blackhat and trade literature to prevent attackers from discovering and exploiting potentially vulnerable services on a networ...
Eugene Y. Vasserman, Nicholas Hopper, John Laxson,...