Before setting up the reverse DNS for your Linode, be sure to set up your domain zone and DNS records through Linode’s DNS Manager.You may also wish to view our guide on Common DNS Configurations.If you request the creation of a new domain, it will usually fail the hierarchical authorisation, producing an automatic email reply.This reply will also be automatically forwarded to the APNIC helpdesk staff, who will create the new domain for you.Ace Fekay, MCT, MVP, MCITP EA, Exchange 2010 Enterprise Administrator, MCTS Windows 2008, Exchange 2010 & Exchange 2007, MCSE 2003/2000, MCSA Messaging 2003 Microsoft Certified Trainer Microsoft MVP: Directory Services Active Directory, Exchange and Windows Infrastructure Engineer Compiled 4/2006, recompiled 7/2009, & 1/4/201011/30/2011 – added DHCP credentials and DHCP/DNS tab properties screenshots.3/10/2012 – Added enabling DNS scavenging screenshots.8/22/2012 – Verified with a Microsoft enginner, we need to use the Dns Update Proxy group and configure credentials to work, not one or the other. Also fixed missing screenshots8/3/2012 – Additional info about DHCP Name Protection and that it requires Credentials, Dns Update Proxy, but more so to secure the Dns Update Proxy group .When a client shuts down, and later returns past the lease time, it may get a different IP address.An email notification will be sent out when the new domain has been created.
An example of this is entering the browser and receiving an IP address for the server dedicated to that website.
Our administrators configure reverse DNS on all of our email servers.
If you administrate your own server, you can contact your IP address's provider to configure reverse DNS.
Please do not confuse this error message with the standard "authorisation failed" message (which indicates that you have supplied the wrong password for the specified maintainer object). This tends to indicate that the nominated nameservers are not replying correctly for the zone in question.
Reverse DNS (r DNS) is name resolution that looks up an IP addresses to obtain a domain name, performing the opposite function of the DNS server, which turns domain names into IP addresses. Typically, spammers use invalid IP addresses, that is, ones that do not match domain names.
A lesser-known task that DNS performs is determining the hostname from an IPv4 address, commonly called reverse resolution.