But in practice, chown removes the setuid bit. If not, you could break into systems that way. Make a copy of ksh or sh, set the setuid bit and then change ownership to any other user and then execute the new shell with setuid ;) Regards, Denny -- Denny Koovakattu Quoting Mark Bole <makbo@xxxxxxxxxxx>: > David Sharples wrote: > > you would also have to reset the setuid permission on the oracle > > executable as it would be lost with a chown > > Not so. chmod changes file permissions, not chown. > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. -- //www.freelists.org/webpage/oracle-l