Re: Reverse DNS Question

2010-04-21 Thread Steven Champeon
on Tue, Apr 20, 2010 at 11:39:11PM -0500, James Hess wrote: > EXCEPT that is just an example,don't actually use a hostname > like "ip192-0-0-1.example.com." in real life. > > [*] Certain overly aggressive blacklists assume that the host must be > a dynamic / dial-up user due to the pre

Re: Reverse DNS Question

2010-04-21 Thread Edward Lewis
At 15:37 -0500 4/20/10, Larry Sheldon wrote: To minimize unwarranted hassle, if you will have email senders, spend some time looking into the "requirements". I don't think there are any RFC or other authoritative standards in the matter. This is as close as the IETF has come to a document. ht

Re: Reverse DNS Question

2010-04-20 Thread Jim Mercer
On Tue, Apr 20, 2010 at 10:26:17AM -1000, Antonio Querubin wrote: > On Tue, 20 Apr 2010, James Martin wrote: > >What is the purpose for this besides resolving name-based reverse lookups? > >Are there any definitive guides out there on how this works (besides the > >ARIN site)? > > It's for resolvi

Re: Reverse DNS Question

2010-04-20 Thread James Hess
On Tue, Apr 20, 2010 at 3:08 PM, James Martin wrote: > All: > In the process of requesting a block of IP's for a client, ARIN requested > that we list Reverse DNS Servers for the block.  I've never done this > before, nor have I ever thought it through. The Reverse DNS zone is for mapping interne

RE: Reverse DNS Question

2010-04-20 Thread Tarig Yassin
10 16:08:04 -0400 > Subject: Reverse DNS Question > From: jamesmar...@ieee.org > To: nanog@nanog.org > > All: > > In the process of requesting a block of IP's for a client, ARIN requested > that we list Reverse DNS Servers for the block. I've never done this &g

Re: Reverse DNS Question

2010-04-20 Thread Larry Sheldon
On 4/20/2010 15:26, Antonio Querubin wrote: > On Tue, 20 Apr 2010, James Martin wrote: > >> What is the purpose for this besides resolving name-based reverse lookups? >> Are there any definitive guides out there on how this works (besides the >> ARIN site)? > > It's for resolving address-based lo

Re: Reverse DNS Question

2010-04-20 Thread Antonio Querubin
On Tue, 20 Apr 2010, James Martin wrote: What is the purpose for this besides resolving name-based reverse lookups? Are there any definitive guides out there on how this works (besides the ARIN site)? It's for resolving address-based lookups. When ARIN allocates address space to you, you now

Re: Reverse DNS Question

2010-04-20 Thread Jack Carrozzo
> What is the purpose for this besides resolving name-based reverse lookups? Resolving the reverse lookups IS the reason they need the nameservers - how else do you reckon queries on one of your IPs would end up finding the correct answer? In the same manner that you tell your domain registrar whe

Reverse DNS Question

2010-04-20 Thread James Martin
All: In the process of requesting a block of IP's for a client, ARIN requested that we list Reverse DNS Servers for the block. I've never done this before, nor have I ever thought it through. What is the purpose for this besides resolving name-based reverse lookups? Are there any definitive guid