Question: What Is A PTR Record And Why Do I Care?

The purpose of a PTR record is mostly administrative – it shows an IP is in fact used with a particular domain.

SiteGround provides PTR records only on Cloud and Dedicated servers.

What does a PTR record do?

A Pointer (PTR) record resolves an IP address to a fully-qualified domain name (FQDN) as an opposite to what A record does. PTR records are also called Reverse DNS records. You can check your PTR record in external DNS lookup solutions like MX Toolbox.

Do I need a PTR record?

There should be exactly one PTR record per IP address/name pair. Each IP address should have a PTR record. The convention is, that name’s IP address must have a PTR record that resolves back to the name used in the MX record. There should be an A record for every PTR record (but not necessarily vice versa).

What is the difference between an A record and a PTR record?

The PTR record is a DNS server record entry that allows rDNS. The PTR record is the answer to a Reverse DNS (rDNS) query. In the familiar forward DNS query, the A record is the answer.

How do I setup a PTR record?

Go to DNS menu and select Managed DNS.

  • Either search for or select the domain you just created.
  • Click the plus sign in the PTR records table to add a new record.
  • Enter the following values for the PTR record: A. The name value of the PTR record will be the last octet of your mail server’s IP address.

What PTR means?

Guys, “PTR” means that the Patch not full implemented. PTR means “Public Test Realm”. 3.1 is being tested on a special server.

Do I need reverse DNS?

It is typically not as critical in as forward DNS – visitors will still reach your web-site just fine without any reverse DNS for your web-server IP or the visitor’s IP. However reverse DNS is important for one particular application.

Is PTR record necessary for mail server?

How Intermedia works with PTR records. The IP addresses of all of Intermedia’s mail servers already have PTR records created, so the IP can be checked against the server’s name. So you don’t need to worry about having to get one. (PTR records come from whoever “owns” the IP address you are using — usually your ISP).

Can you have multiple PTR records same IP address?

while most rDNS entries only have one PTR record, DNS does not restrict the number. However, having multiple PTR records for the same IP address is generally not recommended, unless there is a specific need.

What is meant by PTR?

Definition. PTR. Pointer (as used in DNS records; an address points to a name) PTR.

What is difference between a record and Cname?

The A record maps a name to one or more IP addresses when the IP are known and stable. The CNAME record maps a name to another name. It should only be used when there are no other records on that name. The ALIAS record maps a name to another name, but can coexist with other records on that name.

How do I reverse DNS?

Create a PTR record within your reverse DNS domain.

  1. Step 1: Request Zone from ISP. First, you need to obtain the IP address of your mail server.
  2. Step 2: Request Reverse DNS Delegation.
  3. Step 3: Create Reverse DNS Domain.
  4. Step 4: Create PTR Record.

What is DNS AAAA record?

The record A specifies IP address (IPv4) for given host. A records are used for conversion of domain names to corresponding IP addresses. IP Version 6 Address records (AAAA) The record AAAA (also quad-A record) specifies IPv6 address for given host.