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.

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Reverse DNS in a CIDR world

Reverse DNS seems to be strongly tied to class boundaries, what methods exist now that CIDR is the standard to delegate authority for a subnet? If multiple methods exist which one is best? Do you ...
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DNS Server Configuration problem , PTR records

Hi I have a server that using Windows server 2003 , and Microsoft DNS Server. I have a problem on my DNS setting ERROR: No reverse DNS (PTR) entries. The problem MX records are: ...
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Changing reverse DNS in Debian Box

I am currently hosting a website within my university environment with the permission from my university sysadmins. This is my scenario: I am running a DNS server on my own and I am using one of the ...
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Remote connection to MySQL server takes very long

I have a MySQL 5.0.75 server running on my Linux notebook to which I want to connect from another machine in the local network. This connection takes 5-6 seconds: mysql -h 172.22.65.101 -u myuser ...
2
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4answers
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Is OpenDNS safe to use in a location with Exchange/Reverse DNS

I like OpenDNS, but was wondering if anyone has experience deploying it for a location with an Exchange installation. I'm concerned specifically about whether any filtering they do would cause ...
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What's the reverse DNS command line utility?

What's the command to find the name of a computer given its IP address? I always forget what this command is, but I know it exists in Windows and I assume it exists on the *nix command-line.