On Fri 01 Mar 2019 at 12:09:16 +0000, mick crane wrote: > On 2019-03-01 11:49, Brian wrote: > > > > on client PC > > > $ lpstat -t > > > scheduler is running > > > system default destination: HP_LaserJet_4000_Series > > > device for HP_LaserJet_4000_Series: socket://10.0.0.108 > > > > This is not a connection to the server. socket://... indicates a direct > > connection to the printer. > > with CUPS server network cable plugged in > "enscript file" > prints > with CUPS server network cable unplugged > "enscript file" > hangs, does not print
Communication with a remote CUPS server is with IPP over port 631. socket://... is over port 9100. -- Brian.