Limiting Printers
The standard service for Linux printer configuration and management is CUPS. It’s a versatile system. While the default version of CUPS communicates using the Internet Printing Protocol (IPP) on port 631, it can be used to manage printers from a variety of other services, including Samba, the older Line Printer Next Generation (LPRng) service, HP JetDirect printers, and more. Microsoft operating systems support IPP. Apple, Inc. owns CUPS software and has maintained it under open source licenses. Because the Macintosh operating system is based on a relative of Linux, the Berkeley Standard Distribution, Apple has made CUPS the default print server for its operating systems.
CUPS is configured in files in the /etc/cups/ directory. ...
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