Jump to content

This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

Reverse DNS: Difference between revisions

No change in size ,  12 January 2018
m
(→‎2. A+Reverse or AAAA+Reverse on a Domain We Host: Added a fuller explanation of non-AA-hosted domains. Added a clueless how-to)
[[File:Reverse-dns-a-reverse.png|border]]
 
==3. Reverse lookup if your domain hosted elsewhere ==
 
If you administer a domain that is not hosted with us, then we can add an entry into our control system specifying your choice of domain name (optionally including subdomains) specifically to then allow you to set up entries on our systems that will define a number of individual reverse lookup mappings from your AAISP addresses to individual names below your ‘base’ domain name. There is no charge for this. An example is given in the next section. On our systems you will define a number of records, one (or more) per address of yours, and we append your chosen domain name to each to form a reverse lookup (PTR) record that we define and publish for you. You can ask for several of your domain names to be set up on our systems. Such a domain name can include your choice of subdomain in your request.
 
==4. Defining a reverse lookup entry on our control systems==
 
For example suppose you have an address from us such as <code>198.51.100.10</code> and you wish to define a PTR (reverse lookup) link to <code>fred-workstation.your-domain.example.com</code>.Important: If this domain is not hosted by us, you must first have asked staff to set up <code>your-domain.example.com</code> in our control system, but you only need to do so once. Then you would go into our control panel system, go to "domains" and select the entry <code>your-domain.example.com</code> which we will have added for you following your request. Now for each individual reverse lookup entry you wish to define, enter for example <code>"fred-workstation"</code> into the first edit box for the hostname. The value is not restricted to be just one single dns label; it could contain dots for subdomains. Then enter the ip address in the edit box below, in this case <code>198.51.100.10</code>. You must remember to then click '''OK''' or '''Apply''' to create the record.You will see that a new record is now listed below.
252

edits