Full Disclosure mailing list archives
RE: Re: Reverse dns (whether you want it or not)
From: "Edward Ray" <support () mmicman com>
Date: Fri, 11 Mar 2005 05:34:34 -0800
I would ask your ISP to give reverse domain delagation to your DNS servers. This will allow your DNS servers to defeine the reverse DNS, and the root servers will point to them instead of your ISP's DNS. This is a common request and most ISPs (including mine) do this. Edward W. Ray CISSP, MCSE 2003+Security, P.E. GCIA, GCIH NetSec Design & Consulting -----Original Message----- From: full-disclosure-bounces () lists grok org uk [mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of TheGesus Sent: Thursday, March 10, 2005 1:08 PM To: full-disclosure () lists grok org uk Subject: [Full-disclosure] Re: Reverse dns (whether you want it or not) On this subject (marginally), last year we moved a rather large CIDR block from one ISP to another. The new ISP took it upon themselves to give *ALL* our unused IP addresses a bogus reverse lookup in the (general) format of 10.20.30.40.abc.domain.com No one asked them to do this (or, at least if they did, they won't admit to it), and none of the reverse lookups can be looked up "forwardly". Is this a common practice? It doesn't seem like a good idea, but the ISP insisted it was a "value-added" service. In my opinion, a dead address should remain dead. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://www.secunia.com/ _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://www.secunia.com/
Current thread:
- Reverse dns Paul Schmehl (Mar 10)
- Re: Reverse dns Vincent Archer (Mar 10)
- Re: Reverse dns Paul Schmehl (Mar 10)
- Re: Reverse dns Duo (Mar 10)
- Re: Reverse dns Paul Schmehl (Mar 10)
- Re: Reverse dns Duo (Mar 10)
- Re: Reverse dns Danny (Mar 10)
- Re: Reverse dns (whether you want it or not) TheGesus (Mar 10)
- RE: Re: Reverse dns (whether you want it or not) Edward Ray (Mar 11)
- Re: Reverse dns (whether you want it or not) Dave Korn (Mar 11)
- Re: Re: Reverse dns (whether you want it or not) Danny (Mar 11)
- Re: Reverse dns Paul Schmehl (Mar 10)
- Re: Reverse dns Valdis . Kletnieks (Mar 11)
- Re: Reverse dns Simon Biles (Mar 11)
- Re: Reverse dns Vincent Archer (Mar 10)
- Re: Reverse dns Paul Schmehl (Mar 10)
- Re: Reverse dns Valdis . Kletnieks (Mar 11)