ASET Environment Variables (System Administration Guide, Volume 2)

System Administration Guide, Volume 2

ASET Environment Variables

The table below lists the ASET environment variables and the values that they specify.

Table 24-2 ASET Environment Variables and Their Meanings


Environment Variable	Specifies ...
`ASETDIR` (See below)	ASET working directory
`ASETSECLEVEL` (See below)	Security level
`PERIODIC_SCHEDULE`	Periodic schedule
`TASKS`	Tasks to run
`UID_ALIASES`	Aliases file
`YPCHECK`	Extends check to NIS and NIS+
`CKLISTPATH_LOW`	Directory lists for low security
`CKLISTPATH_MED`	Directory list for medium security
`CKLISTPATH_HIGH`	Directory list for high security

The environment variables listed below are found in the /usr/aset/asetenv file. The ASETDIR and ASETSECLEVEL variables are optional and can be set only through the shell by using the aset command. The other environment variables can be set by editing the file. The variables are described below.

`ASETDIR` Variable

ASETDIR specifies an ASET working directory.

From the C shell, type:

% setenv ASETDIR pathname

From the Bourne shell or the Korn shell, type:

$ ASETDIR=pathname
$ export ASETDIR

Set pathname to the full path name of the ASET working directory.

`ASETSECLEVEL` Variable

The ASETSECLEVEL variable specifies a security level at which ASET tasks are executed.

From the C shell, type:

% setenv ASETSECLEVEL  level

From the Bourne shell or the Korn shell, type:

$ ASETSECLEVEL=level 
export ASETSECLEVEL

In the above commands, level can be set to one of the following:

`low`	Low security level
`med`	Medium security level
`high`	High security level

`PERIODIC_SCHEDULE` Variable

The value of PERIODIC_SCHEDULE follows the same format as the crontab file. Specify the variable value as a string of five fields enclosed in double quotation marks, each field separated by a space:

"minutes hours day-of-month month day-of-week"

Table 24-3 Periodic_Schedule Variable Values


Variable	Value
`minutes hours`	Specifies start time in number of minutes (0-59) after the hour and the hour (0-23)
`day-of-month`	Specifies the day of the month when ASET should be run, using values from 1 through 31
`month`	Specifies the month of the year when ASET should be run, using values from 1 through 12
`day-of-week`	Specifies the day of the week when ASET should be run, using values from 0 through 6; Sunday is day 0 in this scheme

The following rules apply:

You can specify a list of values, each delimited by a comma, for any field.
You can specify a value as a number, or you can specify it as a range; that is, a pair of numbers joined by a hyphen. A range states that the ASET tasks should be executed for every time included in the range.
You can specify an asterisk (*) as the value of any field. An asterisk specifies all possible values of the field, inclusive.

The default entry for PERIODIC_SCHEDULE variable causes ASET to execute at 12:00 midnight every day:

PERIODIC_SCHEDULE="0 0 * * *"

`TASKS` Variable

The TASKS variable lists the tasks that ASET performs. The default is to list all seven tasks:

TASKS="env sysconfig usrgrp tune cklist eeprom firewall"

`UID_ALIASES` Variable

The UID_ALIASES variable specifies an aliases file. If present, ASET consults this file for a list of permitted multiple aliases. The format is UID_ALIASES=pathname. pathname is the full path name of the aliases file.

The default is:

UID_ALIASES=${ASETDIR}/masters/uid_aliases

`YPCHECK` Variable

The YPCHECK variable extends the task of checking system tables to include NIS or NIS+ tables. It is a Boolean variable, which can be set to either true or false.

The default is false, confining checking to local system tables:

YPCHECK=false

`CKLISTPATH_level` Variable

The three checklist path variables list the directories to be checked by the checklist task. The following definitions of the variables are set by default; they illustrate the relationship between the variables at different levels:

CKLISTPATH_LOW=${ASETDIR}/tasks:${ASETDIR}/util:${ASETDIR}/masters:
/etc
CKLISTPATH_MED=${CKLISTPATH_LOW}:/usr/bin:/usr/ucb
CKLISTPATH_HIGH=${CKLISTPATH_MED}:/usr/lib:/sbin:/usr/sbin:/usr/ucblib

The values for the checklist path environment variables are similar to those of the shell path variables, in that they are lists of directory names separated by colons ( : ). You use an equal sign ( =) to connect the variable name to its value.