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TCPDMATCH(8)

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NAME    [Toc]    [Back]

       tcpdmatch - tcp wrapper oracle

SYNOPSYS    [Toc]    [Back]

       tcpdmatch [-d] [-i inet_conf] daemon client

       tcpdmatch [-d] [-i inet_conf] daemon[@server] [user@]client

DESCRIPTION    [Toc]    [Back]

       tcpdmatch  predicts how the tcp wrapper would handle a specific request
       for service.  Examples are given below.

       The  program  examines  the  tcpd  access   control   tables   (default
       /etc/hosts.allow  and  /etc/hosts.deny) and prints its conclusion.  For
       maximal accuracy, it extracts additional information from your inetd or
       tlid network configuration file.

       When  tcpdmatch	finds a match in the access control tables, it identifies
 the matched rule. In addition, it displays the optional shell commands
  or  options in a pretty-printed format; this makes it easier for
       you to spot any discrepancies between what you want and what  the  program
 understands.

ARGUMENTS    [Toc]    [Back]

       The following two arguments are always required:

       daemon A daemon process name. Typically, the last component of a daemon
	      executable pathname.

       client A host name or network address,  or  one	of  the  `unknown'  or
	      `paranoid' wildcard patterns.

	      When  a client host name is specified, tcpdmatch gives a prediction
 for each address listed for that client.

	      When a client address is specified, tcpdmatch predicts what tcpd
	      would do when client name lookup fails.

       Optional information specified with the daemon@server form:

       server A  host  name  or  network  address,  or one of the `unknown' or
	      `paranoid'  wildcard  patterns.  The  default  server  name   is
	      `unknown'.

       Optional information specified with the user@client form:

       user   A  client  user identifier. Typically, a login name or a numeric
	      userid.  The default user name is `unknown'.

OPTIONS    [Toc]    [Back]

       -d     Examine hosts.allow and hosts.deny files in the  current	directory
 instead of the default ones.

       -i inet_conf
	      Specify  this  option  when  tcpdmatch  is  unable  to find your
	      inetd.conf or tlid.conf network configuration file, or when  you
	      suspect that the program uses the wrong one.

EXAMPLES    [Toc]    [Back]

       To  predict  how tcpd would handle a telnet request from the local system:


	    tcpdmatch in.telnetd localhost

       The same request, pretending that hostname lookup failed:

	    tcpdmatch in.telnetd 127.0.0.1

       To predict what tcpd would do when the client name does not  match  the
       client address:

	    tcpdmatch in.telnetd paranoid

       On  some  systems,  daemon names have no `in.' prefix, or tcpdmatch may
       need some help to locate the inetd configuration file.

FILES    [Toc]    [Back]

       The default locations of the tcpd access control tables are:

       /etc/hosts.allow
       /etc/hosts.deny

SEE ALSO    [Toc]    [Back]

      
      
       tcpdchk(8), tcpd configuration checker
       hosts_access(5), format of the tcpd access control tables.
       hosts_options(5), format of the language extensions.
       inetd.conf(5), format of the inetd control file.
       tlid.conf(5), format of the tlid control file.

AUTHORS    [Toc]    [Back]

       Wietse Venema (wietse@wzv.win.tue.nl),
       Department of Mathematics and Computing Science,
       Eindhoven University of Technology
       Den Dolech 2, P.O. Box 513,
       5600 MB Eindhoven, The Netherlands




								  TCPDMATCH(8)
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