
174 Cloud ComPuting networking
5.3.5 Types of DNS Records
DNS records are created for dierent services. Some of them are used to bind a domain
name to an IP address, some of them are used to match an IP address to an e-mail
server, some are used to match an IP address to local DNS servers, some are used for
the reverse lookup, and some are used to create aliases for other domain names. e
types of DNS records are summarized in Table 5.4.
5.3.6 Stub Zone
Sometimes, a subdomain is not registered to the top-level domain. e type of host
name in such a subdomain can be used internally. To search for IP addresses of hosts
outside the internal subdomain, ...