Internet Request For Comment documents are available from the Internet Network Information Center (INTERNIC) at the following address:

Network Solutions
Attn: InterNIC Registration Services
505 Huntmar Park Drive
Herndon, VA 22070
Phone: 1-800-444-4345 or 1-703-742-4777

Bach, M., The Design of the UNIX Operating System (Englewood Cliffs, NJ: Prentice Hall, 1986).

Braden, R., “Requirements for Internet Hosts.” Internet Request For Comment 1112 (1989).

Costales, B., sendmail. (Sebastopol, CA: O'Reilly & Associates, Inc., 1993).

Deering, S., “Host Extensions for IP Multicasting.” Internet Request For Comment 1112 (1989).

Everhart, C., Mamakos, L., Ullmann, R., Mockapetris, P. “New DNS RR Definitions.” Internet Request For Comment 1183 (1990)

Fiedler, D., Hunter, B., UNIX System V Release 4 Administration (Carmel, IN: Hayden Books, 1991).

Frisch, A., Essential System Administration. (Sebastopol, CA: O'Reilly & Associates, Inc., 1991).

Gilly, D., UNIX in a Nutshell. (Sebastopol, CA: O'Reilly & Associates, Inc., 1992).

Hunt, C., TCP/IP Network Administration. (Sebastopol, CA: O'Reilly & Associates, Inc., 1992).

Leffler, S., The Design and Implementation of the 4.3 BSD UNIX Operating System. (Menlo Park, CA: Addison Wesley, 1989).

Lottor, M., “Domain Administrator's Guide.” Internet Request For Comment 1033 (1987).

Lottor, M., “TCP Port Service Multiplexer (TCPMUX).” Internet Request For Comment 1078 (1988).

Mockapetris, P., “DNS Encoding of Network Names and Other Types.” Internet Request For Comment 1101 (1989).

Mockapetris, P., “Domain Names – Concept and Facilities.” Internet Request For Comment 1034 (1987).

Mockapetris, P., “Domain Names – Implementation and Specification.” Internet Request For Comment 1035 (1987).

Mogul, J., Postel, J., “Internet Standard Subnetting Procedure.” Internet Request for Comment 950 (1985).

Nemeth, E., Snyder, G., Sebass, S., UNIX System Administration Handbook (Englewood Cliffs, NJ: Prentice Hall, 1989). Note that this book contains an excellent discussion of the lpr printing system.

Partridge, C., “Mail Routing and The Domain System.” Internet Request For Comment 974 (1986).

Stahl, M., “Domain Administrator's Guide.” Internet Request For Comment 1032 (1987).

Thomas, R., UNIX System Administration Guide for System V. (Englewood Cliffs, NJ: Prentice Hall, 1989).