Quick Answer: How Does A PTR Record Work?

What should my PTR record be?

PTR records are used for the Reverse DNS (Domain Name System) lookup.

Using the IP address you can get the associated domain/hostname.

An A record should exist for every PTR record.

The usage of a reverse DNS setup for a mail server is a good solution..

Are PTR records necessary?

You need a PTR record because many mail servers will reject email that comes from a mail server without one. After all, the goal is to keep the spam out of your inbox.

Why PTR record is created in DNS?

A PTR record (Pointer Record) connects an IP address to a host name. A PTR record is therefore sometimes called Reverse DNS Record because it converts an IP address into a name. A PTR record can only be created on the nameservers managed by the owner of the IP address, and is only valid for static IP addresses.

What is PTR record used for?

A pointer (PTR) record is a type of Domain Name System (DNS) record that resolves an IP address to a domain or host name, unlike an A record which points a domain name to an IP address. PTR records are used for the reverse DNS lookup. Using the IP address, you can get the associated domain or host name.

What are the DNS record types?

What are the most common types of DNS record?A record – The record that holds the IP address of a domain.CNAME record – Forwards one domain or subdomain to another domain, does NOT provide an IP address.MX record – Directs mail to an email server.TXT record – Lets an admin store text notes in the record.More items…

Can you have two A records?

You can do a lot with A records, including using multiple A records for the same domain in order to provide redundancy and fallbacks. Additionally, multiple names could point to the same address, in which case each would have its own A record pointing to that same IP address. The DNS A record is specified by RFC 1035.

What is PTR record in DNS server?

The ‘pointer’ record is exactly the opposite of the ‘A’ record; the PTR address will give you the domain associated with a given IP address. The PTR record is used in reverse-lookup zones for reverse DNS searches.

How do I setup a PTR record?

To create the PTR Record:Add a new PTR record. … For the Canonical Hostname, enter the domain you’d like the IP address to resolve. … After you’ve saved your file zone, allow time for the change before validating the new reverse DNS record.

Where do I put PTR record?

Adding a PTR record to an IPv4 addressIn the menu bar, go to section “Dedicated & Bare Metal” and select “All servers”.The overview of Dedicated & Bare Metal servers is displayed.Click the IP address for the server hosting pack to which you want to add the PTR record.More items…

How do I find my DNS PTR record?

How To Use NSLOOKUP to View Your DNS RecordsLaunch Windows Command Prompt by navigating to Start > Command Prompt or via Run > CMD.Type NSLOOKUP and hit Enter. … Set the DNS Record type you wish to lookup by typing set type=## where ## is the record type, then hit Enter. … Now enter the domain name you wish to query then hit Enter..More items…•

How long does it take for a PTR record to propagate?

24 hoursThe general rule is propagation takes 24 hours to complete worldwide. However, in some cases, this can take up to 48 hours, depending on DNS record TTLs.

What PTR means?

Public Test RealmPTR is short for Public Test Realm, a type of test server used by Blizzard Entertainment to test changes to their video games.