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NAME
     tcpdmatch - tcp wrapper oracle

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

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

DESCRIPTION
     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 conclu-
     sion.  For maximal accuracy, it extracts additional informa-
     tion 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  for-
     mat;  this makes it easier for you to spot any discrepancies
     between what you want and what the program understands.

ARGUMENTS
     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
     -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
     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 configura-
     tion file.

FILES
     The default locations of the tcpd access control tables are:

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

SEE ALSO
     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
     Wietse Venema ([email protected]),
     Department of Mathematics and Computing Science,
     Eindhoven University of Technology
     Den Dolech 2, P.O. Box 513,
     5600 MB Eindhoven, The Netherlands

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