In the last thread, we looked at what DNS is, the types of DNS servers and more. This series has a lot of context to the previous thread so if you missed the earlier part, kindly check below:
π΄ DNS Records. What are they?
A DNS Record in simple terms is just a database record that is used to map a URL to an IP address.
A DNS Record in simple terms is just a database record that is used to map a URL to an IP address.
π΄ What do they do?
The record contains numerous instructions that reside on authoritative DNS servers and offer information about a domain, such as the IP address associated with that domain and how to process queries for that domain.
The record contains numerous instructions that reside on authoritative DNS servers and offer information about a domain, such as the IP address associated with that domain and how to process queries for that domain.
π΄ What do they consist of?
These entries are made up of a sequence of text files written in DNS syntax. DNS syntax is just a string of characters that serve as directives to the DNS server.
These entries are made up of a sequence of text files written in DNS syntax. DNS syntax is just a string of characters that serve as directives to the DNS server.
π NOTE
TTL, which stands for time-to-live, is also assigned to all DNS records and determines how frequently a DNS server will refresh that record.
TTL, which stands for time-to-live, is also assigned to all DNS records and determines how frequently a DNS server will refresh that record.
π΄ What are the most prevalent/common types of DNS record?
π§΅π
π§΅π
π΅ A record - The record that holds the IP address of a domain.
π΅ AAAA record - The record that contains the IPv6 address for a domain (as opposed to A records, which list the IPv4 address)
π΅ AAAA record - The record that contains the IPv6 address for a domain (as opposed to A records, which list the IPv4 address)
π΅ CNAME record - Forwards one domain or subdomain to another domain, does NOT provide an IP address.
π΅ MX record - Directs mail to an email server.
π΅ MX record - Directs mail to an email server.
π΅ TXT record - Lets an admin store text notes in the record. These records are often used for email security.
π΅ NS record - Stores the name server for a DNS entry.
π΅ NS record - Stores the name server for a DNS entry.
π΅ SOA record - Stores admin information about a domain.
π΅ SRV record - Specifies a port for specific services.
π΅ SRV record - Specifies a port for specific services.
π΅ PTR record - Provides a domain name in reverse-lookups.
Reference / Read More : cloudflare.com
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