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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SIGNALS | IBM z/OS ITDS Server and RACF configuration | SMF Mapping | ERRORS | BUGS | FILES | SEE ALSO | AUTHOR | COLOPHON |
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AUDISP-RACF(8) System Administration Utilities AUDISP-RACF(8)
audispd-zos-remote - z/OS Remote-services Audit dispatcher plugin
audispd-zos-remote [ config-file ]
audispd-zos-remote is a remote-auditing plugin for the Audit
subsystem. It should be started by the audispd(8) daemon and will
forward all incoming audit events, as they happen, to a configured
z/OS SMF (Service Management Facility) database, through an IBM
Tivoli Directory Server (ITDS) set for Remote Audit service. See SMF
MAPPING section below for more information about the resulting SMF
record format.
audispd(8) must be configured to start the plugin. This is done by a
configuration file usually located at
/etc/audisp/plugins.d/audispd-zos-remote.conf, but multiple instances
can be spawned by having multiple configuration files in
/etc/audisp/plugins.d for the same plugin executable (see
audispd(8)).
Each instance needs a configuration file, located by default at
/etc/audisp/zos-remote.conf. Check zos-remote.conf(5) for details
about the plugin configuration.
config-file
Use an alternate configuration file instead of
/etc/audisp/zos-remote.conf.
audispd-zos-remote reacts to SIGTERM and SIGHUP signals (according to
the audispd(8) specification):
SIGHUP Instructs the audispd-zos-remote plugin to re-read it's
configuration and flush existing network connections.
SIGTERM
Performs a clean exit. audispd-zos-remote will wait up to 10
seconds if there are queued events to be delivered, dropping
any remaining queued events after that time.
In order to use this plugin, you must have an IBM z/OS v1R8 (or
higher) server with IBM Tivoli Directory Server (ITDS) configured for
Remote Audit service. For more detailed information about how to
configure the z/OS server for Remote Auditing, refer to z/OS
V1R8.0-9.0 Intergrated Security Services Enterprise Identity Mapping
(EIM) Guide and Reference
(http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/FRAMESET/EIMA1140/CCONTENTS?DT=20070827115119 ),
chapter "2.0 - Working with remote services".
Enable ITDS to process Remote Audit requests
To enable ITSD to process Remote Audit requests, the user ID
associated with ITDS must be granted READ access to the IRR.AUDITX
FACILITY Class profile (the profile used to protect the R_Auditx
service). This user ID can usually be found in the STARTED Class
profile for the ITDS started procedure. If the identity associated
with ITDS is ITDSUSER, the administrator can configure RACF to grant
Remote Auditing processing to ITDS with the following TSO commands:
TSO Commands: Grant ITDSUSER READ access to IRR.AUDITX FACILITY Class
profile
rdefine FACILITY IRR.RAUDITX uacc(none)
permit IRR.RAUDITX class(FACILITY) id(ITDSUSER) access(READ)
Create/enable RACF user ID to perform Remote Audit requests
A z/OS RACF user ID is needed by the plugin - Every Audit request
performed by the plugin will use a RACF user ID, as configured in the
plugin configuration zos-remote.conf(5). This user ID needs READ
access to FACILITY Class resource IRR.LDAP.REMOTE.AUDIT. If the user
ID is BINDUSER, the administrator can configure RACF to enable this
user to perform Remote Auditing requests with the following TSO
commands:
TSO Commands: Enable BINDUSER to perform Remote Audit requests
rdefine FACILITY IRR.LDAP.REMOTE.AUDIT uacc(none)
permit IRR.LDAP.REMOTE.AUDIT class(FACILITY) id(BINDUSER) access(READ)
Add @LINUX Class to RACF
When performing remote auditing requests, the audispd-zos-remote
plugin will use the special @LINUX CDT Class and the audit record
type (eg.: SYSCALL, AVC, PATH...) as the CDT Resource Class for all
events processed. To make sure events are logged, the RACF server
must be configured with a Dynamic CDT Class named @LINUX with correct
sizes and attributes. The following TSO commands can be used to add
this class:
TSO Commands: Add @LINUX CDT Class
rdefine cdt @LINUX cdtinfo(posit(493) FIRST(alpha,national,numeric,special) OTHER(alpha,national,numeric,special) RACLIST(REQUIRED) case(asis) generic(allowed) defaultuacc(none) maxlength(246))
setr classact(cdt)
setr raclist(cdt)
setr raclist(cdt) refresh
setr classact(@LINUX)
setr raclist(@LINUX)
setr generic(@LINUX)
Add profiles to the @LINUX Class
Once the CDT Class has been defined, you can add profiles to it,
specifying resources (wildcards allowed) to log or ignore. The
following are examples:
TSO Commands: Log only AVC records (One generic and one discrete
profile):
rdefine @LINUX * uacc(none) audit(none(read))
rdefine @LINUX AVC uacc(none) audit(all(read))
setr raclist(@LINUX) refresh
TSO Commands: Log everything (One generic profile):
rdefine @LINUX * uacc(none) audit(all(read))
setr raclist(@LINUX) refresh
Resources always match the single profile with the best match.
There are many other ways to define logging in RACF. Please refer to
the server documentation for more details.
The ITDS Remote Audit service will cut SMF records of type 83 subtype
4 everytime it processes a request. This plugin will issue a remote
audit request for every incoming Linux Audit record (meaning that one
Linux record will map to one SMF record), and fill this type's
records with the following:
Link Value
The Linux event serial number, encoded in network-byte order
hexadecimal representation. Records within the same Event share the
same Link Value.
Violation
Always zero (0) - False
Event Code
Always two (2) - Authorization event
Event Qualifier
Zero (0) - Success, if the event reported success=yes or res=success,
Three (3) - Fail, if the event reported success=no or res=failed, or
One (1) - Info otherwise.
Class
Always @LINUX
Resource
The Linux record type for the processed record. e.g.:
SYSCALL,AVC,PATH,CWD etc.
Log String
Textual message bringing the RACF user ID used to perform the
request, plus the Linux hostname and the record type for the first
record in the processed event. e.g.: Remote audit request from
RACFUSER. Linux (hostname.localdomain):USER_AUTH
Data Field List
Also known as relocates, this list will bring all the field names and
values in a fieldname=value format, as a type 114 (Appication
specific Data) relocate. The plug-in will try to interpret those
fields (i.e.: use human-readable username root instead of numeric
userid 0) whenever possible. Currently, this plugin will also add a
relocate type 113 (Date And Time Security Event Occurred) with the
Event Timestamp in the format as returned by ctime(3).
Errors and warnings are reported to syslog (under DAEMON facility).
In situations where the event was submitted but the z/OS server
returned an error condition, the logged message brings a name
followed by a human-readable description. Below are some common
errors conditions:
NOTREQ - No logging required
Resource (audit record type) is not set to be logged in the
RACF server - The @LINUX Class profile governing this audit
record type is set to ignore. See IBM z/OS RACF Server
configuration
UNDETERMINED - Undetermined result
No profile found for specified resource. There is no @LINUX
Class configured or no @LINUX Class profile associated with
this audit record type. See IBM z/OS RACF Server configuration
UNAUTHORIZED - The user does not have authority the R_auditx service
The user ID associated with the ITDS doesn't have READ access
to the IRR.AUDITX FACILITY Class profile. See IBM z/OS RACF
Server configuration
UNSUF_AUTH - The user has unsuficient authority for the requested
function
The RACF user ID used to perform Remote Audit requests (as
configured in zos-remote.conf(5)) don't have access to the
IRR.LDAP.REMOTE.AUDIT FACILITY Class profile. See IBM z/OS
RACF Server configuration
The plugin currently does remote auditing in a best-effort basis, and
will dischard events in case the z/OS server cannot be contacted
(network failures) or in any other case that event submission fails.
/etc/audisp/plugins.d/audispd-zos-remote.conf
/etc/audisp/zos-remote.conf
auditd(8), zos-remote.conf(5).
Klaus Heinrich Kiwi <klausk@br.ibm.com>
This page is part of the audit (Linux Audit) project. Information
about the project can be found at
⟨http://people.redhat.com/sgrubb/audit/⟩. If you have a bug report
for this manual page, send it to linux-audit@redhat.com. This page
was obtained from the project's upstream Git repository
⟨https://github.com/linux-audit/audit-userspace.git⟩ on 2018-02-02.
(At that time, the date of the most recent commit that was found in
the repository was 2018-01-23.) If you discover any rendering prob‐
lems in this HTML version of the page, or you believe there is a bet‐
ter or more up-to-date source for the page, or you have corrections
or improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to man-pages@man7.org
IBM Oct 2007 AUDISP-RACF(8)
Pages that refer to this page: zos-remote.conf(5)
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