DNS, reverse lookup and PTR records
Posted on 2014-04-22
Question: Secure services in your network require reverse name resolution to make it more difficult to launch successful attacks against the services. To set this up, you configure a reverse lookup zone and proceed to add records. Which record types do you need to create?
Answer: PTR Records
I setup small business 2003 which comes with exchange built in for client once. Before my arrival he said everytime he would send an email to an AOL email address he would recieve a bounce back message.
I then read on the internet that I have to create a PTR record - and that can only be done by the broadband company. I then left the company and never understood the whole thing.
Can some one explain what exactly a PTR record is? what is it so necessary?