Accessing LInux CUPS administration page on port 631 from outside localhost
How to set up CUPS print server on Ubuntu 22.04
Setting Up Your Device Using EpsonNet Internet Print
Open port - Wikipedia
The CUPS printing system LG #90
Working with CUPS Printing :: Chapter 17: Setting Up a Print Server :: Part IV: Red Hat Linux Network and Server Setup :: red hat linux bible. fedora and enterprise edition :: Linux systems :: eTutorials.org