I need to find a way to do a DNS lookup of a list of ips (at least 250 entries), get their corresponding hostnames and produce a report.
It sounds very simple, an I implemented it with "nslookup ip" (loop for 250 times). I tried "host -al" (which produces a long list of host, so that with PERL one can do a match). The problem with this is that the output did not contain any of the entries in the of ips I was looking for. Can someone please come to my aid? So say I have a file: IP Some title Some title ------------------------------------------------ 190.10.0.1 lkdklkdk dklkdlkd 190.0.2.3 dkjdjd dolkldk ------------------------------------------------ I need to produce something like this: IP Hostname Some title Some title ----------------------------------------------------------- 190.10.0.1 tiger lkdklkdk dklkdlkd 190.0.2.3 lion dkjdjd dolkldk ----------------------------------------------------------- With my current (using nslookup) takes a some time for a long list of ips. __________________ William Ampeh (x3939) Federal Reserve Board -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
