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.
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Multiple Reverse DNS Entries?
I'm a DNS noob, so here's a question:
Can a server have multiple reverse DNS entries? Or does one IP address just resolve to one DNS name?
Here is why I need this:
I have a number of sites hosted ...
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Reverse DNS issue in Win 2003
I am maintaining a DNS and mail server in win 2003, and the ISP made me authoritative for the domain. They say:
----- Start of the email received from the ISP--------
96/28.204.xxx.yyy.in-addr.arpa
...
Mike
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Reverse DNS Question and Qmail
I've setup a mail.example.com, pointed it my server IP. I've also got my provider to setup a Reverse DNS to my server ip to the domain name I setup. AFAIK, what I need now is mail being sent from my ...
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Switched netblocks, new DNS resolving PTR to old DNS IP - why?
A bit of a weird problem here and hope someone can help describe and/or fix with me. We were on a /24 network A.A.A.A and recently switched to B.B.B.B. The nameservers were all updated with the ...
user15590
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How does a Reverse DNS lookup work with regards to spam filters?
I have heard that most spam filters use a reverse DNS lookup on the originating IP address of the sending SMTP server (or something like that) as part of the verification process. I want to make sure ...
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What's the command-line utility in Windows to do a reverse DNS look-up?
Is there a built-in command line tool that will do reverse DNS look-ups in Windows? I.e., something like <toolname> w.x.y.z => mycomputername
I've tried:
nslookup: seems to be forward look-...
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Running own DNS server
I have for a long time had my own "play-around" domain kaareskovgaard.net where I've had a minor blog running. I recently decided that I wanted to try to run my own server on it, and so I ordered a ...
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Finding all domain names that resolve to the same ip?
Lately I've been tracking a spammer on craigslist. I recently discovered that he's added a new technique to his arsenal, he registered a whole bunch of domain names but they all resolve to the same ip ...
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How do I configure reverse DNS for a SMTP server [duplicate]
We use iis 6 to send out emails for our website but some email addresses bouce backs. It only appears to be 2 addresses. There is at least 100 different email addresses sent to at the same time as ...
user7468
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Will adding a second SPF record mess up my DNS?
Will adding a second SPF record mess up my DNS, or will it be like adding an extra nameserver?
(i.e. it only helps, not hurts)
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Reverse DNS - how to correctly configure for SMTP delivery
I started a new service and we need to send emails to our customers (new account confirms, etc).
My server is known as prod01.bidrodeo.com and resolves to 97.107.134.38 .
For reverse DNS, 97.107....
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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
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:
225.208.20.***.in-addr....
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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 ...
user5203
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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 -...
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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.
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