My Kubuntu system parallel port defaulted to ownership and permissions:
crw-rw---- 1 root lp 6, 0 2005-09-11 09:29 /dev/lp0 which seemed reasonable. I was experiencing problems getting CUPS to print to this, though, and Googling obtained the unsatisfactory advice to "chmod 0777 /dev/lp0". Looking further, I finally noticed that CUPS runs its filters as lp.lpadmin, and user lp did not come as a member of group lp (!). I figure the "best" solution is to make user "lp" a member of group "lp", but I am curious now... 1) what are the intended purposes of groups "lp" and "lpadmin"? 2) would it be better to chown root.lpadmin /dev/lp0 (well, in my case I would edit /etc/udev/permissions.d/udev.permissions)? 3) if "lpadmin" is intended to support queue maintenance and "lp" is intended only for printer daemons, how is printer access supposed to be controlled for users who just want to print? or, if group "lp" is for anyone who can print, then how to distinguish between users and queue administrators? I have to admit that CUPS seems much more userfriendly than lpr did. -- --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<[EMAIL PROTECTED]> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- _______________________________________________ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech