BSD 2.11 - man page for tcpdchk (bsd section 8)

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TCPDCHK(8)									       TCPDCHK(8)

       tcpdchk - tcp wrapper configuration checker

       tcpdchk [-a] [-d] [-i inet_conf] [-v]

       tcpdchk	examines  your tcp wrapper configuration and reports all potential and real prob-
       lems it can find. The program examines the tcpd access control files  (by  default,  these
       are /etc/hosts.allow and /etc/hosts.deny), and compares the entries in these files against
       entries in the inetd or tlid network configuration files.

       tcpdchk reports problems such as non-existent pathnames;  services  that  appear  in  tcpd
       access control rules, but are not controlled by tcpd; services that should not be wrapped;
       non-existent host names or non-internet address forms; occurrences of host aliases instead
       of  official host names; hosts with a name/address conflict; inappropriate use of wildcard
       patterns; inappropriate use of NIS netgroups or references to non-existent NIS  netgroups;
       references to non-existent options; invalid arguments to options; and so on.

       Where possible, tcpdchk provides a helpful suggestion to fix the problem.

       -a     Report  access  control rules that permit access without an explicit ALLOW keyword.
	      This applies only when the extended access control language is enabled (build  with

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

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

       -v     Display the contents of each access control  rule.   Daemon  lists,  client  lists,
	      shell commands and options are shown in a pretty-printed format; this makes it eas-
	      ier for you to spot any discrepancies between what you want and  what  the  program

       The default locations of the tcpd access control tables are:


       tcpdmatch(8), explain what tcpd would do in specific cases.
       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.

       Wietse Venema (,
       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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