Tracking down reverse for ip
mysidia at gmail.com
Fri Apr 16 00:52:31 CDT 2010
On Thu, Apr 15, 2010 at 3:59 PM, William Pitcock
<nenolod at systeminplace.net> wrote:
> For someone who is a CCNA, Mikrotik Certified Whatever, etc, etc, etc,
> you really should know how to use dig(1).
Certifications usually only suggest certain skills or knowledge they
were designed to validate, and sometimes might fail even at that;
dig(1) or detailed DNS knowledge is not scoped within either of those
certs, as far as I know..
There are probably many CCNA and MTCNA holders who have not so much
as seen a Unix/Linux shell prompt, and maybe only saw a DOS/Windows
command prompt once or twice, so the only shell command known is
> On Thu, 2010-04-15 at 15:07 -0500, Dennis Burgess wrote:
>> I have a customer that has an IP of 22.214.171.124. Currently, I can not
>> get any reverse on this IP.
>> What is the best way to find out the responciable servers for this?
There are a number of ways to further research an IP address. Your
first stop should be normal WHOIS on the IP, either from your favorite
command line, or a web-based service such as DNSTools, DNSStuff, or
Robtex as in
If no success.... then check the DNS system to determine what
nameservers (if any) are delegated for the IP address' reverse DNS,
finally check prefix whois, RADB, or various services to lookup the
AS associated with world BGP announcements for the address. Asking OPs
mailing lists to help identify responsible party should be very last
after all normal avenues are exhausted.
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