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The SM print server components perform two functions on the 
UNIX server: printer control and printer tracking.

On a UNIX server, the SM print server monitors and controls print-
ing activity. It prevents unauthorized users from accessing network 
printers. When the SM print server receives a print request, it 
checks with the PAS accounting server to ensure that the user 
sending the request has a valid printing account. The accounting 
server checks the PAS database for the administrator-defined list of 
valid printing accounts and indicates when print jobs are autho-
rized to proceed.

The SM print server also monitors printing traffic to determine the 
size and attributes—such as page color, duplexing, page size, and 
so on—of each print job. This detailed information is passed back 
to the Accounting Server service. Based on the print job’s page 
count and document attributes, and the administrator-defined costs 
assigned to the destination printer, the accounting server calculates 
printing charges and levies them against the appropriate printing 
account.

The SM print server logs all its errors and warnings using the UNIX 
syslog’s LPR facility.

The following diagram illustrates how PAS, UNIX and printing 
components interact when the PAS database tracks a workstation 
print request:

Figure 1-2:  How the PAS database tracks a print request 

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The following Equitrac, Microsoft, and UNIX components are 
required in order to configure printer tracking on a UNIX print 
server.

Your UNIX server should be running one of the following operat-
ing systems:

• HP-UX 11.0
• HP-UX 11i
• Sun Solaris 2.6
• Sun Solaris 7 for SPARC
• Sun Solaris 8 for SPARC
• RedHat Linux 6.x for Intel
• RedHat Linux 7.0 for Intel

Note that PAS is not supported on Solaris for Intel, or on Linux run-
ning on non-Intel platforms.

The software has been tested with the standard printing subsystem 
shipped with each of the above operating systems. PAS may not 
work as described if you are using a 3rd party printing subsystem 
such as:

• CUPS
• LPRng
• PDQ

• Windows NT Server 4.0; or
• Windows 2000 Server
• PAS 2.5 EE Accounting Server installed and configured

The management workstation requires: 

• Windows NT 4.0 or Windows 2000
• System Manager
• Accounts Manager