* Mike Mestnik <che...@visi.com> [100829 03:30]: > >>thanks. I'm totally a newbie to this nfs4/gssapi/kerberos. > >> > >>(1) does this approach > >> > >>prevent user1-> root ( su-> ) user2? > > > > Yes. "su" does not grant Kerberos credentials. > > > Can't root just read/steal and even use sockets/fifos/pipes owned by > all other users? Any Kerberos credentials used on the local system > would also be usable by root.
Yes, root can always get access to everything any user on the local machine is doing. What gssapi protects against is someone having root on a computer you do not use (or you no longer use when the person gets root) from impersonating you and getting access to your data on the common server. Bernhard R. Link -- To UNSUBSCRIBE, email to debian-security-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100829081228.ga7...@pcpool00.mathematik.uni-freiburg.de