, though this is typically not used for caching DNS names.
Nemeth, Evi; Snyder, Garth; Hein, Trent R. (2006). Linux administration handbook (2 изд.). Addison-Wesley Professional. стр. 504. ISBN978-0-13-148004-9. Приступљено 14. 2. 2012. „ncsd [...] cache[s] the results of DNS lookups [...] but it also wraps the library routines that access information from the passwd and group files and their network database equivalents.”
ietf.org
tools.ietf.org
RFC1034, Domain Names — Concepts and Facilities, P. Mockapetris, The Internet Society (November 1987)
RFC781, Internet Protocol — DARPA Internet Program Protocol Specification, Information Sciences Institute, J. Postel (Ed.), The Internet Society (September 1981)
RFC1035, Domain Names — Implementation and Specification, P. Mockapetris, The Internet Society (November 1987)