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Ola:
I am checking out a client's web address to ip. Can nslookup the web address and get the ip. However, when I do an nslookup to confirm the web address, DNS says it is non-existent.
What am I missing here?
I know the site it live, but does this sound like they are blocking ip-to-web address lookups (is that what is called as "reverse-DNS" lookup)?
Also - if that is blocked, is that a good security practice to do so? Sounds like it might, but not sure.
Gracias.
This site may help
http://www.dnsstuff.com/
Has reverse dns...and lots of other "Stuff"
MLF
Ola:
Quote:
morganlefay said:
This site may help
http://www.dnsstuff.com/
Has reverse dns...and lots of other "Stuff"
MLF
Most excellent!Quote:
Gracias!
While you will be given full control over the forward lookup for your DNS within your netblock you rarely have any control over the RDNS to those same addresses since they effectively belong to your ISP and they usually keep control of the RDNS resolution rather than let their customers mess up a nice addressing system with random RDNS names.....
Hence, in your case they haven't set up the RDNS for your netblock and thus your can't RDNS your own netblock.