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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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setting correct PTR record for domain and postfix email server

I have a problem where I recently figured out, that describes this output! What steps to do to set the DNS PTR record, is the IP in reverse in the name needed? The zone of my domain is: MYFUNDOMAIN.COM. 3600 IN SOA ns65.domaincontrol.com.…
SmileMZ
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What are all the uses for PTR records / Reverse DNS in the context of web hosting?

Are PTR records used by common web hosting services like: smtp, pop, imap, dns resolution, http, https, ftp, ssl and tls?
Nicolas Guérinet
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Domain names have gone down - site still up

I host a couple of websites on the same Ubuntu server, and as of today both domain names have gone down. PuTTY and FTP still both work so it is obviously a problem with the domain name. I haven't made any changes with my registrar (namecheap), or my…
Euskadi
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domain name system - rDNS is not exist

I need some help with Reverse DNS as I have got a problem with it. I have setup rDNS on my hosting provider which I use rdns1.example.com and I have a server hostname which it is gateway1.example.com. I want to use both different name to get it…
Robert Jones
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Reverse IP Lookups

When I resolve google.com I get the following ip addresses Name: google.com Addresses: 2607:f8b0:4006:80b::1006 173.194.123.6 173.194.123.0 173.194.123.8 e.t.c However when I pick an ip address from the list and perform…
Le Ray
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Why we have always two ips as DNS Entry

Why we have two IPs for dns entry like in Google DNS - 8.8.8.8 8.8.4.4 Or as in OpenDNS - 208.67.222.222 208.67.220.220 Also in router settings, it shows always 2 ips for DNS. Any specific purpose for the same. Just curious.
rahijain
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