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Questions tagged [reverse-dns]

Reverse DNS lookup is the determination of a domain name that is associated with a given IP address using the Domain Name System (DNS) of the Internet.

Reverse DNS lookup or reverse DNS resolution (rDNS) is the determination of a domain name that is associated with a given IP address using the Domain Name System (DNS) of the Internet.

Computer networks use the Domain Name System to determine the IP address associated with a domain name. This process is also known as forward DNS resolution. Reverse DNS lookup is the inverse process, the resolution of an IP address to its designated domain name.

Source: Wikipedia.

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win server 2003: reverse lookup not working for mailserver

hi i'm running a win 2003 server and i need to set up a dns reverse lookup pointer for my mailserver as i'm getting rejected by a certain provider. i created a new reverse lookup zone in the dns manager (default settings) but it seems like there's…
Fuxi
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want to Request our ISp to do rdns/ ptr modify for my Staic IP ot point to my Domain?

we setup a mail server in our local office using Mdaemon Mail Server . We have a Staic ip 123.xxx.123.xxx ( as an example ) and all necessary ports (80 , 25 , 110 ) are made open . We have a domain abc.com which is not hosted anywhere planning…
panindra
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Delegating a subnet of a /17 in DNS

guys. I have a problem I've run into with our DNS setup at my company. (I'm running BIND9 on a Linux platform, but this is not BIND-specific.) I need to delegate a /24 reverse zone to another set of DNS servers outside of my control, using a set of…
user84272
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Reverse DNS for mail server

Possible Duplicate: How does a Reverse DNS lookup work with regards to spam filters? I have a question about setting a reverse DNS record for my mail server. Which is the best way to configure: 1.) The IP address reverses to the domain that is…
user66827
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Reverse DNS with Private NS :: ns1.example.com & website example.com must be on same public IP?

Fairly noobish question, kind of ashamed to be asking ;-) At any rate, I'm using a commercial control panel (similar to Plesk) that I use to manage DNS. I have ns1.example.com setup with the registrar, and a secondary ns with zoneedit -- both point…
virtualeyes
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Email rejected for no rDNS by AOL despite having rDNS

I am having trouble while attempting to send a single email to an aol.com user. I get a rejection reply as follows: Your message did not reach some or all of the intended recipients. Sent: Wed, 27 Jul 2011 15:56:24 -0400 Subject: Test The…
Robert Kerr
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rDNS mx record problem, smtp test fails

down vote favorite I am doing test at mxtoolbox.com ptr: ip -> mydomain.com mx: mydomain.com ->myip but smtp:173.231.15.144 -> OK - myip resolves to myip.hosted.static.hostingfirm.com / Warning - Reverse DNS does not match SMTP Banner at my dns, i…
asdf_enel_hak
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How to setup reverse dns for Virtual dedicated server(godaddy)

I have a problem in resolving the domain and found out that there is a issue with dns settings. I wanted to configure Reverse DNS for my virtual dedicated server(windows). My isp is godaddy. How do i know whether my server dns settings are…
sia
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My Reverse DNS PTR record seems to be right, but I'm still getting bouncing email

I have a service (statusme.com) where I let people know (for example) that their kid's soccer games are cancelled because of bad weather. We send out emails to the people who have registered. I have a second server as a backup, (vps.statusme.com)…
johnbr
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Mysql can not resolve hostnames when checking privileges

I'm going crazy to solve this. I have a mysql installation (on machine db.example.org) which doesn't resolve a given hostname. I gave privileges using hostnames i.e. GRANT USAGE ON *.* TO 'user'@'host1.example.org' IDENTIFIED BY PASSWORD…
Fabio
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Private DNS Question

I received the below request, just curious how I can go about doing this. I have IPs direct from ARIN and my own rdns server. ** As you guys know I am a mailer, but I keep things very clean. My other provider I am currently getting Class C's from…
Faith In Unseen Things
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Resolving FQDNs on Mac DNS Server from a WAN (externally)

I am quite a newbie at this, so please spare me the stick. I have the following networking topology - Comcast Business Gateway<->SonicWall TZ Router<->LAN (Mac OS X Servers). I am using my MacPro as a DNS Server and I have plugged its static LAN IP…
prodigy1485
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What's wrong with my reverse lookup zone?

I am in the process of building a small network with several servers. I am using Server 2008 R2 and have one server (adc01.m6.local = 10.18.1.1) running as the domain controller and DNS server. The issue is that reverse lookups do not seem to be…
rboarman
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Custom hostname instead ISP's

I have setup a Centos 5.5 server and a domain name (say mydomain.com) pointing to it (using bind9) with custom nameservers (like ns1.mydomain.com and ns2.mydomain.com). Everything works fine but there is something more I would like to have and don't…
JohnZ
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Setting Up Reverse DNS

I am on a VPS with root access. Using WHM I followed the instructions here I put the last octet in my ip address in the domain field. left the TTL as 14400. Set the record type to PTR In the hostname field I put websitename.com this resulted in a…
James
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