Domain Name Service Constants

Value	Constant	Description
0	DNS_RECORD_NONE	No record type
1	DNS_RECORD_ADDRESS	Host address
2	DNS_RECORD_NS	Authoritative nameserver
5	DNS_RECORD_CNAME	Cannonical name (alias)
6	DNS_RECORD_SOA	Start of Authority
11	DNS_RECORD_WKS	Well known services
12	DNS_RECORD_PTR	Domain name
13	DNS_RECORD_HINFO	Host information
14	DNS_RECORD_MINFO	Mailbox information
15	DNS_RECORD_MX	Mail exchange host
16	DNS_RECORD_TXT	Text strings
29	DNS_RECORD_LOC	Location information
100	DNS_RECORD_UINFO	User information
101	DNS_RECORD_UID	User ID
102	DNS_RECORD_GID	Group ID