SNIFFIT(5)							File Formats Manual							SNIFFIT(5)

NAME

       sniffit - configuration file for sniffit (name arbirtary)

DESCRIPTION

       This  page  describes  the  format for the config file for sniffit (see sniffit(8) ). This file allows you to specify in great detail witch
       packets should be processed by sniffit.	This file also controls (or will control) some functions for the continuous logging ('-L' option).

       A sniffit config file might look like (Be sure to end it with a BLANK line):

	      # Sniffit Sample Config file -- Brecht Claerhout

	      logfile /var/log/sniffit.today.log

	      # First select all packets!
	      select both mhosts 1
	      select both mhosts 2

	      # Now deselect all packets from/to those damn 'surfers'
	      deselect both port 80
	      deselect both port 8001

       This file will tell sniffit to process all packets on the subnet except those FROM/TO ports 80 and 8001 (thus we don't want logs  of  those
       mass WWW connections witch turn our logs unreadable).

GLOBAL FORMAT

       The  file consists of lines, lines are formed by fields, fields are separated with SPACES (NO TABS).  Unix comment lines (starting with '#'
       are allowed).  So this gives us:

	      <field1> <field2> <field3> <field4> <field5>

FIELD FORMAT

       <field1>
	      select - Sniffit will look for packets that match the following description (other fields)

	      deselect - Sniffit will ignore packets that match the description

	      logfile - change the logfile name to <field2> instead of the default 'sniffit.log'

       <field2>
	      from - Packets FROM the host matching the following desc. are considered.

	      to - similar, Packets TO the....

	      both - similar, Packets FROM or TO the....

	      a filename - as an argument of 'logfile' in <field1>

       <field3>
	      host - The (de)selection criteria involves a hostname.

	      port - similar, ... a portnumber

	      mhosts - The (de)selection criteria involves multiple-hosts, like with the wildcars in 0.3.0, but without the 'x'

       <field4>
	      Either a hostname, a portnumber, a service name or a numbet-dot partial notation indicating multiple  hosts  depending  on  <field3>
	      (service	names  like 'ftp' are resolved as the services available present on the host that runs Sniffit, and translated into a port
	      nr)

       <field5>
	      A portnumber, if <field3> was 'host' or 'mhosts' (optional, if not filled in, all ports are going to be (de)selected)

FILE INTERPRETING

       The config file is interpreted SEQUENTIAL, so watch it, don't mix lines in a file. Example:

		    select both mhosts 100.100.12.
		    deselect both port 80
		    select both host 100.100.12.2

	      This file will get you the packets:
		    a) Send by hosts '100.100.12.*'
		    b) EXCEPT the WWW packets
		    c) BUT showing the WWW packets concerning
		       100.100.12.2

		    select both mhosts 100.100.12.
		    select both host 100.100.12.2
		    deselect both port 80

	      Will give you the packets (probably unwanted result):
		    a) Send by hosts '100.100.12.*'
		    b) Send from/to 100.100.12.2 (useless line)
		    c) deselecting all WWW packets on the subnet

AUTHOR

       Brecht Claerhout <coder@reptile.rug.ac.be>

SEE ALSO

       sniffit(8)

																	SNIFFIT(5)