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tcpdchk (8)
  • >> tcpdchk (8) ( Solaris man: Команды системного администрирования )
  • tcpdchk (8) ( FreeBSD man: Команды системного администрирования )
  • tcpdchk (8) ( Linux man: Команды системного администрирования )
  • 
    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.  Dae-
              mon 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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