Code review: recursion in circular array, reduce two functions to one? Post: 303014964

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LEARN ABOUT DEBIAN

tigercron

TIGERCRON(8)						      Administrator Commands						      TIGERCRON(8)

NAME

       tigercron - Cron utility for Tiger UNIX Security Checker

SYNOPSIS

       tigercron [controlfile] [-B basedir] [tigeroptions...]

DESCRIPTION

       Tigercron  is used to run periodically checks from the Tiger UNIX Security Checker. Tigercron reads a control file which is usually located
       in '/etc/tiger/cronrc' although it can also be specificied as the first argument when calling the program.  The format of this control file
       is  the	same as for the cron program, each line indicates when different checks from Tiger will be run.  The user can indicate where Tiger
       is installed through the -B basedir parameter, any other additional options provided in the command line will be passed on to configure	to
       configure Tiger based on them (as described in tiger (8)).

       Tigercron  runs	the specified checks and compares their reports with previous stored reports (under /var/log/tiger). It will then mail the
       user defined in '/etc/tiger/tigerrc' (Tiger_Mail_RCPT) the results.

       When a module is run, tigercron checks:

       o   If Tiger_Cron_Template is set to Y in tigerrc. If it is, it checks if there is a template stating which are the expected results.

       o   If Tiger_Cron_CheckPrev is set to Y in tigerrc. If it is, it checks if there is a previous run of the module it can check against.

       A differential report is generated depending on the module reports and previous run and is sent through e-mail. These  reports  provide	an
       easy  way to detect intrusions even if no configuration of templates has been done. In the event of an intrusion a Tiger check might detect
       something specific (file changes, new processes, new users, etc.) and this alert mechanism provides a way to turn Tiger into a Host  Intru-
       sion Detection System (HIDS).

       The ability of it to work as a proper HIDS is based on a good customization of the cronrc file. Modules that check events to which the host
       is most exposed to should be run often in order to detect deviations from normal behaviour.

OPTIONS

       Tigercron uses the same options as Tiger. A controlfile can be defined also to override the default.

FILES

       /etc/tiger/tigerrc
	      Configuration file for the Tiger tool.

       /etc/tiger/cronrc
	      Configuration file for the Tigercron tool.

       /var/log/tiger
	      Location of the log messages generated by Tiger when run through cron

       /var/lib/tiger/work
	      Working directory used by Tiger scripts to create temporary files.

SEE ALSO

       tigexp(8),tiger(8),cron(8),crontab(5)

       The deficiencies of using tigercron as a HIDS are described in the file README.hostids which  is  provided  with  the  package.	In  Debian
       GNU/Linux you will find this (and other related) documentation at /usr/share/doc/tiger/

BUGS

       Currently  Tigercron  has only one alert mechanism (mail) and signatures are not supported. Thus, alerts could be faked. Also, it is depen-
       dant on cron and will not work if cron is not working.

AUTHOR

       This manpage was written by Javier Fernandez-Sanguino.

Security							 19 September 2003						      TIGERCRON(8)