innovative2001
06-24-2006, 10:13 AM
A NAMESERVER is the program that actually does the work of looking up names. The program IN.NAMED acts as the name server. There is usually one name server for a cluster of machines.
There are three main types of NAMESERVERS:
1) CACHING-ONLY name server does lookups of names, but controls no name records itself.
2) PRIMARY name server not only does lookups of names, but also owns the records for a domain.
3) SECONDARY name server does name lookups and it also backs up a primary name server by providing authoritative answers for a certain domain. Many name servers will combine Primary and Secondary functionality for different domains.
There are three main types of NAMESERVERS:
1) CACHING-ONLY name server does lookups of names, but controls no name records itself.
2) PRIMARY name server not only does lookups of names, but also owns the records for a domain.
3) SECONDARY name server does name lookups and it also backs up a primary name server by providing authoritative answers for a certain domain. Many name servers will combine Primary and Secondary functionality for different domains.