gradm(8) - man - phpMan

GRADM(8)                               System Manager's Manual                              GRADM(8)



NAME
       gradm - Administration program for the grsecurity RBAC system

SYNOPSIS
       gradm  [  -E  ]  [  -R  ] [ -C ] [ -F ] [ -L <logfile> ] [ -O <filename|stream> ] [ -M <file‐
       name|uid> ] [ -D ] [ -P [rolename] ] [ -a <rolename> ] [ -n <rolename> ] [ -p <rolename> ]  [
       -u ] [ -V ] [ -h ] [ -v ]


DESCRIPTION
       gradm is the userspace RBAC parsing and authentication program for grsecurity

       grsecurity aims to be a complete security system for Linux 2.4.  gradm performs several tasks
       for the RBAC system including authenticated via a password to the kernel and parsing rules to
       be passed to the kernel.


OPTIONS
       All options to gradm are mutually exclusive, except for -L and -O.

       -E     Enable the RBAC system


       -R     Reload the RBAC system (only valid while in admin mode)


       -C     Perform  a check of the RBAC policy, running the same analysis against it that is per‐
              formed when enabling.


       -F     Toggle full learning mode.  If used only with -L, it enables the RBAC system  in  full
              learning mode.  If used with -L and -O, it parses the full learning logs and generates
              a complete ruleset.


       -M <filename|uid>
              Remove an execution ban on a given uid or filename that has been put in place  by  the
              RES_CRASH resource restriction of the RBAC system.


       -L <logfile>
              Parses the learning logs.  Accepts an argument which specifies the logfile to scan for
              the learning logs.  If "-" is specified as the logfile, stdin  will  be  used  as  the
              learning log.  This option can be used with -E, -O, or -F.


       -O <filename|stream>
              Specifies  output mode.  Requires a single argument that can be "stdout", "stderr", or
              a regular file.  Only used with -L or -F.


       -D     Disable the RBAC system


       -P [rolename]
              Without an argument, it sets the password for administering the RBAC system.   With  a
              role name as an argument, it sets the password for that given special role.


       -a <rolename>
              Authenticate to a special role that requires a password.


       -n <rolename>
              Authenticate to a special role that does not require a password.


       -p <rolename>
              Authenticate through PAM to a special role.


       -u     Removes yourself from your current special role, reverting back to the normal role se‐
              lection.  To be used, for instance, for logging out of an admin role  without  exiting
              your shell.


       -V     Displays  verbose policy statistics when enabling the RBAC system or checking the RBAC
              policy.  Can only be used with -C, -E, or -F -L <filename>


       -h     Display help information


       -v     Print version information and exit





REPORTING BUGS
       Please include as much information as possible(using any  available  debugging  options)  and
       send bug reports for gradm or the grsecurity RBAC system to spender AT grsecurity.net.


AUTHOR
       grsecurity  and  gradm  were  created  and  are  maintained by Brad Spengler <spender@grsecu‐
       rity.net>



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