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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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ns1 and ns2 are in different subnets, do I need two reverse zones?

I will make an example: ns1.example.com = 172.27.175.64 (local ip address) ns2.example.com = 192.168.1.10 (local ip address) (Obviously it is an example and they are with local IP addresses, but in the case if they were external intranet IPs, and…
Andrés Alvarez
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reverse nslookup attach arpa zone to response

I have an issue that some reverse (PTR) resolution reattach in-addr.arpa zone to response.This is something wrong in the named(bind9) configuration. Now is : command : dig -x 10.1.1.107 @dns_server_ip ;; ANSWER SECTION: 107.1.1.10.in-addr.arpa.…
popeye33
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BIND9 how to have 2 reverse resolutions for 2 different domains

I have one server Bind9 and 2 different domains. I'ld like to have reverse resolution for each domain. I've tried this configuration below but I get the error in named-checkconf : /etc/bind/named.conf:30: zone '10.0.10.in-addr.arpa': already exists…
nguxx
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force mysqld to use etc hosts for reverse lookup

I have a server hosted by hetzner running mysqld. I already setup some "ddns for poor ones" to add my dial-on IP (Telekom) to the server's /etc/hosts. Now all Users in mysql are limited to localhost, but my development machine at home must also…
Synopsis
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#ASK Reverse Zone: Server Can't Find .in-addr.arpa : NXDOMAIN

I figure it out about reverse zone, so I already config my local DNS with this simple config: 1. named.conf.options acl internal { 192.168.1.0/24; // data 192.168.2.0/24; // data 192.168.3.0/24; // data …
Willy Sudwihartono
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zone file error and named does not start

we have deployed a new zone on our dns : named.conf for the new zone (like others) zone "db.0.30.10.in-addr.arpa" { type master; file "/etc/named/internal/db.0.30.10.in-addr.arpa"; notify yes; …
popeye33
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How to disable reverse DNS lookup in Apache 2.2 or in recursive bind

I would like to stop Apache (2.2) from doing reverse lookups for client IP addresses. I have HostnameLookups Off and LogFormat "%h %l %u %t %V \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" port:%p" combined_vhost LogFormat "%h %l %u %t \"%r\"…
Ján Lalinský
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I need to have my 2 websites to have an individual rDNS record but they both are running on the shared web hosting servers

I'm a server noob and want to get some solution or some advice from the gurus of the ServerFault. I currently have two different live websites running and they both are using the shared web hosting servers. But I need to have those two websites to…
Fred Fredonando
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What should be the rDNS PTR records for a self-hosted email server with a website domain hosted elsewhere?

We have a self-hosted mail server at our business's single, static IP address (mail.companyA.com). Our website is hosted by another company at a different IP address (companyA.com). Our emails use the @companyA.com domain. Sometimes we send emails…
Brian
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BIND9 server for a network with no internet access

The question I have is the same as this one, but the accepted answer, and the comments did not helped me solve my issue. I'll put here the whole setup that I have. BIND9 version - BIND 9.11.5-P4-5.1+deb10u6-Debian (Extended Support Version), OS -…
Julian Dimitrov
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Using NGINX to Access Synology services without port numbers?

First, I apologize if this isn't the right forum as this is somewhat of a networking question. To give a brief explanation of what I want to achieve is basically have the services or apps provided by Synology be accessible via a simple URL without…
AJ Tatum
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Replace VPS rDNS FQDN with a mail subdomain

I have a VPS with a single IP address and multiple domain names. I used mail-tester.com to check the spam rate of my email. And my results are: Your IP address 93.123.12.43 is associated with the domain 2132217.myisp.net. Nevertheless your…
Adam
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DNS PTR lookup deprecated?

When I use dmarcanalyzer to check my domain I get the message: Warning : You shouldn't use PTR lookups as they are deprecated My record looks like this: v=spf1 ptr:samplemail.com ip4:191.13.174.145 ip4:191.13.174.146 a:samplemail.com…
Adam
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iprev check for multiple ipv6 addresses

Can I add multiple PTR records mapping multiple IPV6 addresses to the same domain, and add multiple AAAA records mapping the same domain to to the same set of IPV6 addresses, to let pass the iprev check?
William
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How to set rDNS record for ipv6 address block?

Occasionally, I open a ticket at my VPS provider to let them create a rDNS record for me. Sometimes, I can find a page in my control panel to add the rDNS record myself. This is simple for ipv4 address. I just input an ip address and a domain name…
William
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