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TCPDMATCH(8)                                                                                    TCPDMATCH(8)



NAME
       tcpdmatch - tcp wrapper oracle

SYNOPSIS
       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 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  addi-tion, addition,
       tion,  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
       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 con-figuration configuration
              figuration 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 configuration 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 (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)