Security Basics mailing list archives
Re: DNS PTR record
From: Ronald van der Westen <rvdwesten () gmail com>
Date: Tue, 3 Mar 2009 06:47:07 +0100
Hi, What are you trying to achieve with this? It looks like there is a PTR record for the y.y.y.231 which points to mail.domain.com. And mail.domain.com points to y.y.y.230, are you sure there are not multiple A-records for mail.domain.com? Where does the PTR for .230 point to? What did you expect to happen? This is probably the result of not cleaning old records, or just a wrong configuration, nothing special, quite common ;-) -Ronald On Sat, Feb 28, 2009 at 4:31 PM, Abo Sous <abussous () gmail com> wrote:
Hi List, i am digging a mail server and a router on my domain; i get the following results: 1- the dig domain.com MX gives me: ;; QUESTION SECTION: ;domain.com IN MX ;; ANSWER SECTION: domain.com. 20778 IN MX 10 mail.domain.com. ;; ADDITIONAL SECTION: mail.domain.com. 20778 IN A y.y.y.230 2- the dig -x y.y.y.231 (the router) gives me: ;; QUESTION SECTION: ;231.y.y.y.in-addr.arpa. IN PTR ;; ANSWER SECTION: 231.y.y.y.in-addr.arpa. 21495 IN PTR mail.domain.com. obviously, the output from step number 2 is wrong my question is: where could this error possibly lead to? what are the vulnerabilities / security issues that might arise from this? thanks in advance, -A/S
-- Ronald van der Westen
Current thread:
- DNS PTR record Abo Sous (Mar 02)
- Re: DNS PTR record Ronald van der Westen (Mar 03)
- RE: DNS PTR record David Gillett (Mar 03)
- Re: DNS PTR record Atilla Remote Support (Mar 03)
- Re: DNS PTR record Ronald van der Westen (Mar 03)