MAP20070024455Chapman, D. BrentBuilding Internet firewalls / D. Brent Chapman and Elizabeth D. Zwicky. — Sebastopol : O'Reilly & Associates, 1995XXVI, 517 p. ; 24 cmSumario: Network security (Why Internet firewalls?. Internet services. Security strategies) -- Building firewalls (Firewall design. Bastion hosts. Packet filtering. Proxy systems. Configuring Internet services. Two samples firewalls. Authentication and inbound services) -- Keeping your site secure (Security policies. Maintaining firewalls. Responding to security incidents) -- Appendixes (Resources. Tools. TCP/IP fundamentals)