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Linux 2.6 - man page for tcpdmatch (linux section 8)

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.  Exam-
       ples 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 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 path-
	      name.

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

	      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 pat-
	      terns. 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  network  con-
	      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.

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)


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