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TCPDCHK
!!!TCPDCHK
NAME
SYNOPSYS
DESCRIPTION
OPTIONS
FILES
SEE ALSO
AUTHORS
----
!!NAME


tcpdchk - tcp wrapper configuration checker
!!SYNOPSYS


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


''tcpdchk'' examines your tcp wrapper configuration and
reports all potential and real problems 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.
!!OPTIONS


-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
-DPROCESS_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 ''tcpdchk'' is unable to find
your ''inetd.conf'' or ''tlid.conf'' network
configuration file, or when you suspect that the program
uses the wrong one.


-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 easier for you to
spot any discrepancies between what you want and what the
program understands.
!!FILES


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


/etc/hosts.allow
/etc/hosts.deny
!!SEE ALSO


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.
!!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
----

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Last edited on Monday, June 3, 2002 6:56:53 pm by "perry"

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