Matthew Sackman writes:
> ...there was a group dialout. What is this group doing there?

'dialout' is the group for the serial ports.

> and under which circumstances would one ever need to be a member of it?

To open a serial port.  You don't have to be in dialout to run pon because
pppd is setuid root.  Thus you can independently control who can bring up a
ppp connection and who can use the serial ports.
-- 
John Hasler
[EMAIL PROTECTED] (John Hasler)
Dancing Horse Hill
Elmwood, WI

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