Polyteknisk Boghandel

Linux administrators will find this pocket reference valuable at those critical moments when they need to open or close a port in a hurry, either to allow important traffic in or to block an attack. Linux iptables Pocket Reference organizes the subtle netfilter syntax for quick and easy lookup, and helps administrators remember all the values they need to enter to assure strict security. The book divides the listings of all iptables options into those that are suitable for firewalling, accounting, and NAT. Our unique quick reference format is ideal for Linux administrators who already have a firewall in place, but need to be prepared for frequent changes in their environment.