Magic Banana wisely suggested:
> You can redirect the output of any command (including 'nmap') to a file.
> Append "&> file_name" (without the quotes and with the file name of your
choice) to the command line,
> to redirect what it writes on both the standard and the error outputs.
That teenie little ampersand (&) is the key:
sudo nmap -sS -p3389 -T4 --max-retries 8 --script asn-query -iL
FTR-UnresolvedHNs.txt &> HNs-nMap-testlist.txt
==> only "Failed to Resolve" in output file
sudo nmap -sS -p3389 -T4 --max-retries 8 --script asn-query -iL
HNs-nMap-MixedList.txt &> HNs-nMap-MixedOutput.txt
==> Failed to resolve" listed first. OK !
[I randomized the list from among the first list and a "selection" that was
accidentally all resolved]
The original list of hostnames had 22 thousand lines and took nMap over three
hours to process.
Note in passing: The IPv4 addresses that were not (for whatever reason)
converted by the server
software to hostnames is much longer and equally productive of useful data. I
wish there could
be a scripted way of separating the two populations into two lists. Manually,
it's very tedious.
George Langford
