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This is the BSDA Study Guide Book written via a wiki collaboration. This is a work in progress. You may contribute to or discuss this specific page at http://bsdwiki.reedmedia.net/wiki/Chapter_Network_Administration.html. Chapter Network Administration TCP/IP was originally implemented on BSD systems and BSD systems continue to provide core networking services for a substantial portion of the Internet. Demonstrate a strong understanding of both IPv4 and IPv6 addressing as well as basic networking theory. Trainers and material providers should provide conceptual depth similar to that found in Network+ or in the networking theory section of CCNA. Determine the current TCP--IP settings on a system Set a system's TCP--IP settings Determine which TCP or UDP ports are open on a system Verify the availability of a TCP--IP service Query a DNS server Determine who is responsible for a DNS zone Change the order of name resolution Convert a subnet mask between dotted decimal, hexadecimal or CIDR notation Gather information using an IP address and subnet mask Understand IPv6 address theory Demonstrate basic tcpdump(1) skills Manipulate ARP and neighbor discovery caches Configure a system to use NTP View and renew a DHCP lease Recognize when and how to set or remove an interface alias