Give us an example of one of your /24 blocks. Or look it up at ARIN to see what they think the authoritative nameservers are. Here is an example of one of mine:
https://whois.arin.net/rest/rdns/192.49.69.in-addr.arpa. (this is for 69.49.192.0/24) From: Af [mailto:af-boun...@afmug.com] On Behalf Of TJ Trout Sent: Thursday, January 12, 2017 11:41 PM To: af@afmug.com Subject: Re: [AFMUG] Reverse DNS entry I'm the owner of the IP space, how exactly can I get this rdns entry made? Does this involve hosting a DNS server or can I just make an entry into one of ARIN's databases? On Thu, Jan 12, 2017 at 9:36 PM, Ken Hohhof <af...@kwisp.com <mailto:af...@kwisp.com> > wrote: Whose IP space are they on? Yours? Surely you control reverse DNS for your own IP blocks, right? Part of ARIN allocating a block to you is authoritative namesevers for the in-addr.arpa zone. You could host rDNS anywhere you want, as long as ARIN points to those nameservers as authoritative for your block. Are you saying this customer is using IP space from another provider, or has their own? You would need to get the owner of that block to delegate DNS to you for that IP address or subnet. I remember once I was doing hosting for a customer who had a T1 from AT&T, and AT&T policy was not to provide rDNS for AT&T blocks assigned to a customer if that customer’s domain was hosted elsewhere. Actually, what AT&T did was to delegate rDNS to my nameservers without telling me first, which resulted in constant lame delegation log entries. From: Af [mailto:af-boun...@afmug.com <mailto:af-boun...@afmug.com> ] On Behalf Of TJ Trout Sent: Thursday, January 12, 2017 11:17 PM To: af@afmug.com <mailto:af@afmug.com> Subject: [AFMUG] Reverse DNS entry Is it possibe to make a reverse DNS entry for a customer doing hosting on their service if I'm not hosting my DNS in house ? ( Ducks) I'm assuming not? Anyway to resolve their request with hosted DNS or through Arin's website ?
