2008年8月27日星期三

DNS query type

Types of DNS Records:

A record: Address record maps a hostname to a 32-bit IPv4 address.

AAAA record: AAAA record IPv6 address record maps a hostname to a 128-bit IPv6 address.

CNAME record: Canonical name record is an alias of one name to another.

MX record: Mail exchange record maps a domain name to a list of mail exchange servers for that domain.

PTR record: Pointer record maps an IPv4 address to the canonical name for that host.Setting up a PTR record for a hostname in the in-addr.arpa domain that corresponds to an IP address implements reverse DNS lookup for that address.

NS record: Name server record maps a domain name to a list of DNS servers authoritative for that domain.

SOA record Start of authority record specifies the DNS server providing authoritative information about an Internet domain.

SRV record: It is a generalized service location record.

TXR record: This record is used to implement the Sender Policy Framework.

You can search or look up A Record, AAAA, CNAME, MX, NS, PTR, SOA, SPF, SRV, TXT or Find ALL of DNS entries

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