What does PTR and do I need PTR statements for my ns2 and backup name servers ----- what does 2 PTR mean and do i need a PTR statement for ns2 and backup IN NS ns1.domain.com. 1 IN PTR localhost.domain.com. 2 IN PTR ns1.domain.com. ; ; Other Name Servers for this domain? (EXAMPLES ONLY) IN NS ns2.domain.com. IN NS backup.domain.com.