Dear All, [My apologies for posting to two lists at once, to anybody who considers this inappropriate.] I am desperate to find that SuSE Linux, and Linux in general AFAIK, does not support anything similar to Access Control Lists as known from Windows NT's NTFS, or some commercial *NIXes. The user/group/world permissions scheme has inherent limitations that make it almost impossible to implement advanced permission schemes; most notably this scheme is not extensible (One cannot simply grant/ deny permissions to an additional user or group). Has anybody got suggestions on how to remedy this restriction with current releases? Are there other ways to implement more elaborate security schemes on the filesystem level? Rémy Card, the maintainer of ext2fs, presented some slides on implementing ACL's at the Second International Linux and Internet Conference, in Berlin, Germany, on May 23 and 24 1996: <ftp://tsx-11.mit.edu/pub/linux/packages/ext2fs/slides/berlin96/acl-1.eps.gz> This was way back in time though---I wonder whether this will become a feature of Linux anytime soon; especially since the latest developer kernel sources seem not to include anything like that. Two guys from University Bremen did some work on that as part of their Live! project: <http://aerobee.informatik.uni-bremen.de/acl_eng.html> Their code didn't get adopted (yet), it seems. Any ideas or suggestions are welcome. Andreas ----------------------------------------------------------------------- Andreas Gruenbacher, a.gruenbacher@computer.org