HP OpenVMS Guide to System Security: OpenVMS Version 8.4 > Appendix B Protection for OpenVMS System Files 
       
      
      Standard Ownership and Protection
      
      
      
      The system (SYSTEM) owns all OpenVMS system files
except one. The directory MOM$SYSTEM is owned by UIC [376,375].  All files in SYS$SYSDEVICE:[VMS$COMMON], except
those listed in “Exceptions to Standard OpenVMS System File Protection”, have a protection code of S:RWED,O:RWED,G:RWED,W:RE.  The directory VMS$COMMON.DIR and the files in
SYS$SYSDEVICE:[SYSx.DIR] have a protection code
of S:RWE,O:RWE,G:RE,W:RE.  For SYSUAF.DAT, RIGHTSLIST.DAT, and VMS$PASSWORD_HISTORY.DATA,
the file owner must be a UIC with a group within the system range
(less than MAXSYSGROUP system parameter). Values of [1,1] or [SYSTEM]
(1,4) are recommended. Table B-1 Exceptions to Standard OpenVMS System File Protection | Files  | Protection |  | [VMS$COMMON]  |  | DECW$DEFAULTS.DIR | MOM$SYSTEM.DIR | S:RWE,O:RWE,G:RE,W:RE |  | SYS$KEYMAP.DIR | SYS$LDR.DIR |   |  | SYS$STARTUP.DIR | SYSCBI.DIR |   |  | SYSERR.DIR | SYSEXE.DIR |   |  | SYSFONT.DIR | SYSHLP.DIR |   |  | SYSLIB.DIR | SYSMAINT.DIR |   |  | SYSMGR.DIR | SYSMSG.DIR |   |  | SYSTEST.DIR | SYSUPD.DIR |   |  | VUE$LIBRARY.DIR |   |   |  | [VMS$COMMON.SYS$KEYMAP] |  | DECW.DIR |   | S:RWE,O:RWE,G:RE,W:RE |  | [VMS$COMMON.SYS$KEYMAP.DECW] |  | SYSTEM.DIR | USER.DIR | S:RWE,O:RWE,G:RE,W:RE |  | [VMS$COMMON.SYSEXE] |  | ISL_LVAX_061.SYS | ISL_SVAX_061.SYS | S:RWED,O:RWED,G:RE,W:RE |  | NETPROXY.DAT |   | S:RWE,O:RWE,G:RWE,W |  | NET$PROXY.DAT |   | S:RWE,O:RWE,G:RWE,W |  | MSGHLP$MAIN.EXE |   | S:RE,O:RE,G:RE,W:RE |  | RIGHTSLIST.DAT |   | S:RWED,O:RWED,G,W |  | SYSUAF.DAT |   | S:RWED,O:RWED,G,W |  | VMS$OBJECTS.DAT |   | S:RWE,O:RWE,G:RE,W |  | VMS$PASSWORD_HISTORY.DATA |   | S:RWE,O:RWE,G,W |  | [VMS$COMMON.SYSFONT] |  | DECW.DIR | PS_FONT_METRICS.DIR | S:RWE,O:RWE,G:RE,W:RE |  | VWS.DIR | XDPS.DIR |   |  | [VMS$COMMON.SYSFONT] |  | DECW.DIR | PS_FONT_METRICS.DIR | S:RWE,O:RWE,G:RE,W:RE |  | VWS.DIR | XDPS.DIR |   |  | [VMS$COMMON.SYSFONT.DECW] |   |   |  | 100DPI.DIR | 75DPI.DIR | S:RWE,O:RWE,G:RE,W:RE |  | COMMON.DIR | CURSOR16.DIR |   |  | CURSOR32.DIR | USER_100DPI.DIR |   |  | USER_75DPI.DIR | USER_COMMON.DIR |   |  | USER_CURSOR16.DIR | USER_CURSOR32.DIR |   |  | [VMS$COMMON.SYSHLP] |  | DECW.DIR | VMSDOC.DIR | S:RWE,O:RWE,G:RE,W:RE |  | MSGHLP$ENGLISH.EXE |   | S:RE,O:RE,G:RE,W:RE |  | EXAMPLES.DIR |   | S:RWE,O:RWE,G:RE,W:RE |  | [VMS$COMMON.SYSLIB] |  | CDA$ACCESS.EXE | DECW$DWTLIBSHR.EXE | S:RW,O:RWED,G:R,W:R |  | DECW$PRINTWGTSHR.EXE | DECW$XLIBSHR.EXE |   |  | MSGHLP$ENGLISH.EXE | MSGHLP$SHARE.EXE | S:RE,O:RE,G:RE,W:RE |  | VMS$PASSWORD_DIC
TIONARY.DATA |   | S:RE,O:RE,G,W |  | XDPS$DPSBINDINGSSHR.EXE | XDPS$DPSCLIENTSHR.EXE | S:RW,O:RWED,G:R,W:R |  | XDPS$DPSLIBSHR.EXE | XNL$SHR.EXE |   |  | [VMS$COMMON.SYSMGR] |  | SECURITY.AUDIT$JOURNAL |   | S:RWED,O:RWED,G:RE,W |  | VMS$AUDIT_SERVER.DAT |   | S:RWE,O:RWE,G:RE,W |  | WELCOME.TEMPLATE | WELCOME.TXT | S:RWED,O:RWED,G:RE,W:RE |  | [VMS$COMMON.VUE$LIBRARY] |  | SYSTEM.DIR | USER.DIR | S:RWE,O:RWE,G:RE,W:RE |  
    
      
     |