TCP/IP Network Administration, 3rd Edition is a complete guide to setting up and running a TCP/IP network for administrators of networks of systems, as well as for lone home systems that access the Internet. It starts with the fundamentals: what the protocols do and how they work, how addresses and routing are used to move data through the network, and how to set up a network connection. The third edition has been updated with: A new section on Samba server configuration; A new chapter on Apache Web server configuration; More on public-key encryption and coverage of ssh, stunnel, gpg and openssl; Firewall coverage has been updated to include examples of using iptables for packet filtering; More on classless IP addressing and the use of address prefixes; The role of the new Internet registrars; Coverage of adding network interface hardware with Linux loadable modules; and Information on BIND 8 and BIND 9.