Le 05/05/2017 à 17:06, Javier Perez a écrit : > Hi. > I guess this is more like a general Linux question. > > How can I find out on my Fedora 25 what port I have to open up for a > program to work? > > I recently purchased a Multifunction Canon Printer TS5000 series. They > use a propetary program for scanning images called ScangearMP . > > When I execute scangearmp2 it cannot find the printer on the wireless > network. > If I drop the firewall, then scangearmp2 indeed finds the printer. > > How can I find out what firewall ports scangear is trying to use? I > tried netstat but the listing I saw was kind of large and did not > immediately make sense to me. printer: ipp protocol port 631 You have a list of ports and associated devices/protocols in /etc/serveces -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)1 8394 5849 http://www.math-info.univ-paris5.fr/~patte
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