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 tcpdmatch(1)                                                   tcpdmatch(1)

 NAME    [Toc]    [Back]
      tcpdmatch - evaluate tcp wrapper service requests

 SYNOPSYS    [Toc]    [Back]
      /usr/bin/tcpdmatch [-d] [-i inet_conf] daemon client

      /usr/bin/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
      maximum accuracy, it extracts additional information from the inetd
      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 printable format.  The display helps
      you find any discrepancies between what you want and what tcpdmatch
      understands for the access control rules.

    Arguments    [Toc]    [Back]
      The daemon and client 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 the 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

      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'.

 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003

 tcpdmatch(1)                                                   tcpdmatch(1)

    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 configuration file, or when you suspect that
                tcpdmatch is using the wrong file.  inet_conf is the path
                name of the inetd.conf configuration file whose entries you
                want to examine.

 EXAMPLES    [Toc]    [Back]
      To predict how tcpd would handle a telnet request from the local

           tcpdmatch telnetd localhost

      The same request, pretending that hostname lookup failed:

           tcpdmatch telnetd

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

           tcpdmatch telnetd paranoid

 AUTHOR    [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

 FILES    [Toc]    [Back]
      The default locations of the tcpd access control tables are:

      /etc/hosts.allow         (daemon, client) pairs that are granted

      /etc/hosts.deny          (daemon, client) pairs that are denied

 SEE ALSO    [Toc]    [Back]
      tcpdchk(1), tcpd configuration checker.

      inetd.conf(4), format of the inetd control file.

      hosts_access(5), format of the tcpd access control tables.

      hosts_options(5), format of the language extensions.

 Hewlett-Packard Company            - 2 -   HP-UX 11i Version 2: August 2003
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