HP OpenVMS Systems Documentation
OpenVMS DCL Dictionary
Defines or changes, for the current terminal session or batch job, characteristics associated with files and devices owned by the process.
The SET command options are described individually in this manual. Table DCLII-15 lists all the SET command options, including those generally reserved for use by system operators and managers.
Controls the current accounting file.
Each node on your system has its own current accounting file. You can control what resources this file tracks, and start up a new version of this file using the SET ACCOUNTING command.
$ SET ACCOUNTING /DISABLE /ENABLE=(PROCESS,BATCH,INTERACTIVE) $ SET ACCOUNTING /ENABLE=IMAGE
This example tells the system to track the resources used only by batch and interactive processes, and by images running in batch and interactive processes. It illustrates the cumulative effect of /ENABLE and /DISABLE qualifiers, and of SET ACCOUNTING commands.
The /DISABLE qualifier prevents the tracking of all resources. The /ENABLE qualifier then tells the system to track the resources used by batch and interactive processes. The second SET ACCOUNTING command tells the system to track the resources used by images.
$ SET ACCOUNTING /NEW_FILE $ RENAME SYS$MANAGER:ACCOUNTNG.DAT;-1 WEEK_24_RESOURCES.DAT
This example closes the current accounting file, opens a new version of it, and changes the name of the old file to WEEK_24_RESOURCES.DAT.
Provides the management interface to the security auditing system.
Requires the SECURITY privilege.
The SET AUDIT command and the SHOW AUDIT command provide the management interface to the security auditing system.
The SET AUDIT command enables or disables security auditing. In addition, you use the command to do the following:
- Select categories of events to audit
- Change the operational characteristics of the audit server
- Establish the location of the audit journal and the security archive file
- Control the monitoring of disk resources
Values set by the command are saved so it is unnecessary to set them each time the system starts up. Commands for event definition, resource monitoring, and starting a new log apply clusterwide, while other commands apply only to the local node.
Security auditing features require a certain amount of system overhead; therefore, you should be careful to select the features that will provide the most benefit in your work environment. Enable only the auditing of information that you know you will examine and analyze regularly. Any other collection of data is likely to be wasteful. For further information about auditing, refer to the OpenVMS Guide to System Security.
There are five categories of qualifiers, grouped by task, for the SET AUDIT command:
Task Qualifiers Requirements Define auditing events /AUDIT, /ALARM, /CLASS, /ENABLE, /DISABLE Specify whether you are defining alarms (/ALARM), audits (/AUDIT), or both. Also specify whether you are enabling (/ENABLE) or disabling (/DISABLE) the reporting of the event. Define auditing log file /DESTINATION, /JOURNAL, /VERIFY Requires both the /DESTINATION and /JOURNAL qualifiers. Define operational characteristics of the audit server and a listener mailbox (if any) /INTERVAL, /LISTENER, /SERVER, /VERIFY None. Define secondary log file /ARCHIVE, /DESTINATION, /VERIFY None. Define resource monitoring defaults /BACKLOG, /EXCLUDE, /JOURNAL, /RESOURCE, /THRESHOLD, /VERIFY With the /RESOURCE or /THRESHOLD qualifier, include the /JOURNAL qualifier.
/ALARMMakes the command apply to alarms, which are messages displayed on an operator terminal. See the description of the DCL command REPLY/ENABLE for details on how to enable terminals to display security messages.
/ARCHIVE=[keyword,...]Specifies which classes of audit event messages are written to the security archive file. Specify one or more of the following keywords:
Keyword Description NONE Disables archiving on the system. [NO]ALL (default) Enables or disables archiving of all system security events. By default, no events are archived. SYSTEM_ALARM Enables archiving of all security alarm events. SYSTEM_AUDIT Enables archiving of all security audit events.
Archiving should be run on only one node in an OpenVMS Cluster with its own audit server database because multiple nodes will try to open the audit file exclusively.
/AUDITMakes the command apply to audits, which are messages recorded in the system security audit log file.
/BACKLOG=[keyword[,...]]Specifies the thresholds for suspending a process that has exceeded the process message limit. The thresholds include the total number of messages in memory and the number belonging to the particular process. To prevent a process from being suspended, use the /EXCLUDE qualifier. Specify the following keywords:
Keyword Description TOTAL=(n1,n2,n3) Thresholds at which flow control is initiated and accelerated; see description below. PROCESS=(p1,p2) Thresholds at which process submissions are controlled.
Total Messages Default Process Messages Default Action Taken N1 100 P1 5 When there are 100 messages in memory, the audit server suspends any process that has submitted 5 or more messages until all messages are written to disk. N2 200 P2 2 When there are 200 messages in memory, the audit server suspends any process that has submitted 2 or more messages until all messages are written to disk. N3 300 Any process with messages in memory is suspended until all messages are written to disk.
/CLASS=classSpecifies the class of the object whose auditing attributes are to be modified. If /CLASS is not specified, the command assumes the class is FILE. Specify one of the following keywords with the /CLASS qualifier:CAPABILITY
/DESTINATION=filespecWhen changing the destination of event messages, specifies the new location of the system security audit log file. The device, if part of the file specification, must be a disk. The /DESTINATION qualifier requires the /JOURNAL qualifier in this case.
Once you have relocated the log file, execute the command SET AUDIT/SERVER=NEW_LOG to let all the nodes in the cluster know of the new location. The previous audit log file is closed and all subsequent audit event messages generated throughout the cluster are sent to the new audit log file.
When used with /ARCHIVE, specifies the name of the archive log file. Events can be archived to a local or remote file on any file-structured disk device. For example, you can use an archive file to redirect event messages from a satellite to a larger node in the cluster.
/DISABLE=(keyword[,...])Disables alarms or audits for the specified events. To disable all system events and file access events, specify the keyword ALL. You must specify at least one of the keywords. For a list of the keywords to use with the /DISABLE qualifier, see the /ENABLE qualifier description. You must also specify either the /ALARM or /AUDIT qualifier, or both, when you use the /DISABLE qualifier.
In processing the SET AUDIT command, the system processes the /DISABLE qualifier last. If you specify both the /ENABLE and /DISABLE qualifiers for items in the same class on the same command line, the /DISABLE qualifier disables any enabled items. Compaq recommends that you use separate lines for commands containing the /ENABLE and /DISABLE qualifiers.
/ENABLE=(keyword[,...])Enables alarms or audits for the specified events. To enable all system events and file access events, specify the keyword ALL. You must specify at least one keyword. You must also specify either the /ALARM or /AUDIT qualifier, or both, when you use the /ENABLE qualifier.
The keywords that you can specify with either the /ENABLE or the /DISABLE qualifier are as follows:
Keyword Description ACCESS=(condition
Specifies access events for all objects in a class. (To audit a single object, use an auditing ACE and enable the access control list (ACL) category.)
Compaq recommends that when you enable auditing conditionally, you enable it for all possible forms of access because the system can check access rights at several points during an operation. (For example, a FAILURE might occur on a read or write access check.)
Condition Keyword Description ALL All object access BYPASS Successful object access due to the use of the BYPASS privilege FAILURE Unsuccessful object access GRPPRV Successful object access due to the use of the group privilege (GRPPRV) READALL Successful object access due to the use of the READALL privilege SUCCESS Successful object access SYSPRV Successful object access due to the use of the system privilege (SYSPRV) Access Keyword Description ALL All types of access ASSOCIATE Associate access CONTROL Control access to examine or change security characteristics CREATE Create access DELETE Delete access EXECUTE Execute access LOCK Lock access LOGICAL Logical I/O access MANAGE Manage access PHYSICAL Physical I/O access READ Read access SUBMIT Submit access WRITE Write access ACL Specifies an event requested by an audit or alarm ACE in the access control list (ACL) of an object. To audit all objects of a class, use the ACCESS keyword. ALL Specifies all system events and file access events. It does not enable access events for object classes other than FILE. AUDIT=keyword Specifies events within the auditing subsystem. Only one keyword is currently defined.
Keyword Description ILLFORMED Specifies illformed events from internal calls (identified by NSA$M_INTERNAL) to $AUDIT_EVENT, $CHECK_PRIVILEGE, $CHKPRO, or $CHECK_ACCESS system services. An illformed event is caused by an incomplete or syntactically incorrect argument being supplied to one of these system services by a piece of privileged code. AUTHORIZATION Specifies the modification of any portion of the system user authorization file (SYSUAF), network proxy authorization file (NETPROXY), or the rights list (RIGHTLIST) (including password changes made through the AUTHORIZE, SET PASSWORD, or LOGINOUT commands or the $SETUAI system service). BREAKIN=(keyword[,...]) Specifies the occurrence of one or more classes of break-in attempts, as specified by one or more of the following keywords:ALL
CONNECTION Specifies a logical link connection or termination through DECnet Phase IV, DECwindows, $IPC, or SYSMAN. CREATE Specifies the creation of an object. Requires the /CLASS qualifier if it is not a file. DEACCESS Specifies deaccess from an object. Requires the /CLASS qualifier if it is not a file. DELETE Specifies the deletion of an object. Requires the /CLASS=DEVICE qualifier. IDENTIFIER Specifies that the use of identifiers as privileges should be audited. For further information, refer to the OpenVMS Guide to System Security. INSTALL Specifies modifications made to the known file list through the INSTALL utility. LOGFAILURE= (keyword[,...]) Specifies the occurrence of one or more classes of login failures, as specified by the following keywords:
ALL All possible types of login failures BATCH Batch process login failure DETACHED Detached process login failure DIALUP Dialup interactive login failure LOCAL Local interactive login failure NETWORK Network server task login failure REMOTE Interactive login failure from another network node, for example, with a SET HOST command SERVER Server or TCB-based login failure. SUBPROCESS Subprocess login failure LOGIN= (keyword[,...]) Specifies the occurrence of one or more classes of login attempts, as specified by the following keywords. See the LOGFAILURE keyword for further description.
LOGOUT= (keyword[,...]) Specifies the occurrence of one or more classes of logouts, as specified by the following keywords. See the LOGFAILURE keyword for further description.
MOUNT Specifies a mount or dismount operation. NCP Specifies access to the network configuration database, using the network control program (NCP). PRIVILEGE= (keyword[,...]) Specifies successful or unsuccessful use of privilege, as specified by the following keywords:FAILURE [:privilege(,...)] --- Unsuccessful use of privilege
SUCCESS [:privilege(,...)] --- Successful use of privilege
For a listing of privileges, refer to online help for the DCL command SET PROCESS/PRIVILEGES.
PROCESS= (keyword[,...]) Specifies the use of one or more of the process control system services, as specified by the following keywords:
ALL Use of any of the process control system services CREPRC All use of $CREPRC DELPRC All use of $DELPRC SCHDWK Privileged use of $SCHDWK CANWAK Privileged use of $CANWAK WAKE Privileged use of $WAKE SUSPND Privileged use of $SUSPND RESUME Privileged use of $RESUME GRANTID Privileged use of $GRANTID REVOKID Privileged use of $REVOKID GETJPI Privileged use of $GETJPI FORCEX Privileged use of $FORCEX SETPRI Privileged use of $SETPRI
Privileged use of a process control system service means the caller used GROUP or WORLD privilege to affect the target process.
SYSGEN Specifies the modification of a system parameter with the OpenVMS System Generation utility. TIME Specifies the modification of system time.
/NOEXCLUDE=process-idAdds a process identification (PID) to the audit server's process exclusion list. The process exclusion list contains those processes that will not be suspended by the audit server if a resource exhaustion reaches the action threshold. By default, realtime processes and all of the following processes are included in the process exclusion list and are never suspended:CACHE_SERVER
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