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JDRESOLVE(1)	      User Contributed Perl Documentation	  JDRESOLVE(1)

N
       jdresolve - resolves IP addresses into hostnames

S
       jjddrreessoollvvee  [-h]	 [-v]	[-n]   [-r]   [-a]  [-d	 <level>] [-m
       <mask>]	 [-l  <line  cache>]  [-t  <timeout>]  [-p] [-s	   <number
       of   sockets>]	[--database=<db	  path>] <LOG FILE>

       jjddrreessoollvvee  [--help]  [--version]	[--nostats] [--recursive] [--anywhere]
       [--debug=<level>]       [--mask=<mask>] [--linecache=<line cache>]
       [--timeout=<timeout>] [--sockets=<number	of sockets>]
       [--database=<db path>] [--dbfirst]      [--dbonly]     [--dumpdb]
       [--mergedb] [--expiredb=<hours>]	     [--unresolved]	 [--progress]
       <LOG FILE>

D
       jjddrreessoollvvee  resolves  IP	addresses  to hostnames. Any file format  is
       supported, including those where	the line does not  begin  with	the
       IP  address.  One  of the strongest features  of	 the program  is  the
       support for recursion, which  can  drastically  reduce  the  number of
       unresolved hosts	 by  faking a hostname based on	the network that the
       IP  belongs  to.	 DNS  queries are sent in parallel, which means	 that
       you  can	 decrease run time by increasing the number  of	 simultaneous
       sockets used (given a fast enough machine and available bandwidth ).
       By  using the database support,	performance  can  be  increased	even
       further,	by using cached	data from previous runs.

O
       --hh,, ----hheellpp
	       produces	a short	help message

       --vv,, ----vveerrssiioonn
	       display version information

       --nn,, ----nnoo--ssttaattss
	       don't display stats after processing

       --rr,, ----rreeccuurrssiivvee
	       recurse	into  C, B and A classes when there is no PTR (default
	       is no recursion)

       --dd,, ----ddeebbuugg==<ddeebbuugg--lleevveell>
	       debug  mode  -  no  file	 output,  just statistics during run
	       (verbosity level	range: 1-3)

       --tt,, ----ttiimmeeoouutt==<sseeccoonnddss>
	       timeout	 in  seconds  for  each	 host  resolution (default is
	       30 seconds)

       --ll,, ----lliinnee--ccaacchhee==<lliinneess>
	       numbers	of  lines  to cache in memory (default is 10000

       --ss,, ----ssoocckkeettss==<ssoocckkeettss>
	       maximum	number	of concurrent sockets (use ulimit -a  to
	       check  the  max allowed for your	operating system - defaults to
	       64)

       --mm,, ----mmaasskk==<mmaasskk>
	       <mask>  accepts	%i for IP and %c for class owner, e.g.
	       "somewhere.in.%c"  or "%i.in.%c"	(default is "%i.%c")

       --aa,, ----aannyywwhheerree
	       resolves	 IPs  found  anywhere  on  a  line  (will resolve all
	       IPs if there is more than one)

       --pp,, ----pprrooggrreessss
	       prints  a  nice progress	bar indicating the status of the
	       resolve operations

       ----ddaattaabbaassee==<ddbb ppaatthh>
	       path to database	that holds resolved hosts/classes

       ----ddbbffiirrsstt
	       check  if we have resolved entries in the database before
	       sending out DNS queries

       ----ddbboonnllyy
	       don't  send DNS queries,	use only resolved data in the database

       ----dduummppddbb
	       dumps a database	to STDOUT

       ----mmeerrggeeddbb
	       merges  resolved	IP/classes from	a file (or STDIN) with a
	       database

       ----eexxppiirreeddbb==<hhoouurrss>
	       expires	entries	 in  the  database that	are older than <hours>
	       hours

       ----uunnrreessoollvveedd
	       won't  attempt  to  resolve  IPs, only lists those that were
	       not resolved

       <LLOOGG FFIILLEE>
	       the log filename	or '-' for STDIN

E
	   jdresolve access_log	> resolved_log
	   jdresolve -r	-s 128 access_log > resolved_log
	   jdresolve -r	--database hosts.db access_log > res_log

S
       rhost(1)

A
       jjddrreessoollvvee was written by	John D.	Rowell <me@jdrowell.com>, and  is
       licensed	under the terms	of the GNU General Public License.

       The original version of this man	page was written by Craig Sanders
       <cas@taz.net.au>,   for	 the  Debian  GNU/Linux	package	of jdresolve,
       and is also licensed under the terms of the GNU GPL.

3rd Berkeley Distribution    perl 5.005, patch 03		  JDRESOLVE(1)

N | S | D | O | E | S | A

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