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罕用的各种 dns 记录
Understanding PTR MX SRV SPF AAAA DNS Records
- NS record – The Name Server record simply specifies the other name
servers for the domain, or maps a domain name to that of the primary
server for the zone. - A record The Address record holds the IP address of the name.
- CNAME record The Canonical Name record is an alias field allowing you
to specify more than one name for each TCP/IP address. - MX record The Mail Exchange record specifies the name of the host
that processes mail for this domain. - HINFO record The Host record is the record that actually specifies
the TCP/IP address for a specified host. All hosts that have static
TCP/IP addresses should have an entry in this database. - PTR record Pointer records are used for reverse lookup entries. They
specify the IP address in reverse order and the corresponding host
name.
用 dig 查问 DNS 记录
Using Linux Dig to Query DNS Records
- Simple lookup : dig hackersgarage.com
- Lookup Name Servers: dig @8.8.8.8 hackersgarage.com NS
- Lookup using external DNS Server: dig @8.8.8.8 hackersgarage.com
- Lookup MX record: dig @8.8.8.8 hackersgarage.com MX
- Lookup CNAME record: dig @8.8.8.8 hackersgarage.com CNAME
- Look TXT record (e.g will it will return SPF records, google verification methods): dig @8.8.8.8 hackersgarage.com TXT
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