Security Basics mailing list archives
Re: DNS PTR record
From: "Atilla Remote Support" <info () atilla dhs org>
Date: Tue, 3 Mar 2009 17:46:47 +0100
Hi. As far as I know there is no vulnarability with this (I could be wrong).:) The problem however is that de ptr record for your mailserver shoud be correct. Otherwise you could get listed in spamblock lists and you don't want your mta to get in there. So I would correct the issue. Regards, Richard. ----- Original Message ----- From: "Abo Sous" <abussous () gmail com> To: <security-basics () securityfocus com> Sent: Saturday, February 28, 2009 4:31 PM Subject: DNS PTR record
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
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)