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FPDNS(1)	      User Contributed Perl Documentation	      FPDNS(1)

NAME
       fpdns - DNS server fingeprinting	tool

SYNOPSIS
       fpdns [A	-dA ] [A -fA ] [A -FA nchildA ]
	  [A -pA portA ] [A -QA	srcaddrA ] [A -rA retryA ]
	  [A -sA ]  [A -SA separatorA ]	[A -tA timeoutA	] [A -vA ] [server(s)]

DESCRIPTION
       fpdns is	a program that remotely	determines DNS server versions.	 It
       does this by sending a series of	borderline DNS queries which are
       compared	against	a table	of responses and server	versions.

       False positives or incorrect versions may be reported when trying to
       identify	a set of servers residing behind a load-balancing apparatus
       where the servers are of	different implementations, when	a specific
       implementation behaves like a forwarder,	behind a firewall without
       statefull inspection or without Application Intelligence.

OPTIONS
       -d   Enable debugging. Off by default.

       -D   Check all authoritative servers of the specified domain name.

       -f   Force checking of CH TXT version. Off by default.

       -F nchild
	    Maximum number of forked child processes. Defaults to 10.

       -p port
	    Port to query remote nameserver on.	Default	is 53.

       -Q srcaddr
	    Set	the source IP address to use.

       -r retry
	    Number of attempt to retry fingerprints. Defaults to 1.

       -s   Short display form.	Useful for surveys.

       -S   Separator. Defaults	to " ".

       -t timeout
	    Set	the query timeout in seconds. Defaults to 5.

       -T   Use	TCP instead of UDP.

       -v   Show version of fpdns.

       server
	    IP address or name to query. Alternatively may be '-' to read from
	    a list of these from stdin

AUTHORS
       fpdns was written by Roy	Arends and Jakob Schlyter.

SEE ALSO
       perl(1),	Net::DNS(1)

perl v5.24.1			  2012-10-19			      FPDNS(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | AUTHORS | SEE ALSO

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