<h2 id="dns-records">DNS records</h2>
<p> <a target="_blank" href="https://www.howtouselinux.com/post/linux-dns-ptr-mx-srv-spf-aaaa-dns-records">Understanding PTR MX SRV SPF AAAA DNS Records</a></p>
<ul>
<li>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.</li>
<li>A record The Address record holds the IP address of the name.</li>
<li>CNAME record The Canonical Name record is an alias field allowing you
to specify more than one name for each TCP/IP address.</li>
<li>MX record The Mail Exchange record specifies the name of the host<br />that processes mail for this domain.</li>
<li>HINFO record The Host record is the record that actually specifies<br />the TCP/IP address for a specified host. All hosts that have static<br />TCP/IP addresses should have an entry in this database.</li>
<li>PTR record Pointer records are used for reverse lookup entries. They 
specify the IP address in reverse order and the corresponding host<br />name.</li>
</ul>
<h2 id="dig-dns-records">Dig DNS records</h2>
<p><a target="_blank" href="https://www.howtouselinux.com/post/linux-command-use-dig-to-query-dns">Using Linux Dig to Query DNS Records</a></p>
<ul>
<li>Simple lookup : dig <a href="http://howtouselinux.com" class="autolinkedURL autolinkedURL-url" target="_blank">howtouselinux.com</a></li>
<li>Lookup Name Servers: dig  <a href="http://howtouselinux.com" class="autolinkedURL autolinkedURL-url" target="_blank">howtouselinux.com</a> NS</li>
<li>Lookup using external DNS Server: dig  <a href="http://howtouselinux.com" class="autolinkedURL autolinkedURL-url" target="_blank">howtouselinux.com</a></li>
<li>Lookup MX record: dig <a href="http://howtouselinux.com" class="autolinkedURL autolinkedURL-url" target="_blank">howtouselinux.com</a> MX</li>
<li>Lookup CNAME record: dig  <a href="http://howtouselinux.com" class="autolinkedURL autolinkedURL-url" target="_blank">howtouselinux.com</a> CNAME</li>
<li>Lookup TXT record (e.g will it will return SPF records, google verification methods): dig  <a href="http://howtouselinux.com" class="autolinkedURL autolinkedURL-url" target="_blank">howtouselinux.com</a> TXT</li>
</ul>
<p>reference:</p>
<p><a target="_blank" href="https://www.howtouselinux.com/post/dns-port">DNS port</a></p>
<p><a target="_blank" href="https://www.howtouselinux.com/post/dig-dns-txt-record">Query DNS Txt Records with Dig Command</a></p>
<p><a target="_blank" href="https://www.howtouselinux.com/post/linux-dig-dns">Linux dig DNS</a></p>


## DNS records
 [Understanding PTR MX SRV SPF AAAA DNS Records](https://www.howtouselinux.com/post/linux-dns-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.

## Dig DNS records
[Using Linux Dig to Query DNS Records](https://www.howtouselinux.com/post/linux-command-use-dig-to-query-dns)
 - Simple lookup : dig howtouselinux.com
 - Lookup Name Servers: dig  howtouselinux.com NS
 - Lookup using external DNS Server: dig  howtouselinux.com
 - Lookup MX record: dig howtouselinux.com MX
 - Lookup CNAME record: dig  howtouselinux.com CNAME
 - Lookup TXT record (e.g will it will return SPF records, google verification methods): dig  howtouselinux.com TXT

reference:

[DNS port](https://www.howtouselinux.com/post/dns-port)

[Query DNS Txt Records with Dig Command](https://www.howtouselinux.com/post/dig-dns-txt-record)

[Linux dig DNS](https://www.howtouselinux.com/post/linux-dig-dns)

Learn DNS

DNS records

Dig DNS records