[conspire] puzzled about printing port 9100 and guarddog
peter.knaggs at gmail.com
Sun Feb 12 12:45:19 PST 2006
I found that when printing to networked
printers, I have to add a "user defined"
port 9100 to my guarddog firewall config,
to allow CUPS to send my printouts to
But when I look in /etc/services, there's
no mention of what 9100 is for. I know I
got the number from somewhere, but my memory
isn't what it used to be. Googling for 9100
shows it's indeed a very popular port for
printing to, but doesn't explain why it isn't
listedn in /etc/services, or have a nice
user-friendly checkbox in guarddog.
guarddog *does* have a nice checkbox for
"IPP" (port 631) but I think that's for
offering CUPS services to remote users,
so that they can use a locally-attached
printer, am I right?
By the way, Inkling has made incredible
progress on a GUI app for quickly removing
commercials from a TV recording.
Check it out:
search down for "xtscut" (there's a link
to an image which gives an idea of what it
looks like). It makes cutting parts out
of a transport stream very speedy. He coded it
up in less than a month, amazing :)
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