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lpd security questions
I'm trying to have as few ports open as possible. So whenever I need to
print I first start lpd, then print, and then kill lpd again. During the
last weeks this has become quite a task, because I have to print quite
So at the moment I'm thinking about leaving lpd running. But even if I
don't have any entries in /etc/hosts.equiv and /etc/hosts.lpd having lpd
listen on port 515 can still be a risk, can't it?
Now I wonder if it is possible to have lpd running *without* opening port
515 (something like a '-nolisten tcp' option) or opening it on 127.0.0.1
only? In man lpd I saw that /var/run/printer is a socket for local
requests. So opening up a port seems not to be necessary (?). But the
manpage doesn't show a way how to configure lpd not to open up a port.