Do NFS Administration Guide da Sun
http://docs.sun.com/app/docs/doc/802-1963/6i5v8k26q?a=view
Secure NFS
The NFS environment is a powerful and convenient way to share file systems on a network of different computer architectures and operating systems. However, the same features that make sharing file systems through NFS operation convenient also pose some security problems. An NFS server authenticates a file request by authenticating the computer making the request, but not the user when using UNIX authentication. When using UNIX authentication, a client user can run su and impersonate the owner of a file. If DES authentication is used, the NFS server will authenticate the user, making this sort of impersonation much harder.
Andr� Carezia wrote:
Thadeu Penna wrote:
N�o, mas quando se trata de Linux e NFS. Solaris tem o secure-nfs.
Mas o sNFS continua sendo feito para autenticar *m�quinas*, n�o usu�rios. A autentica��o � mais robusta, pois se baseia em criptografia de chave p�blica (DES).
Somente o "root" pode montar compartilhamentos sNFS. Um usu�rio "root" na m�quina-cliente, usando "su", continua tendo acesso completo a qualquer arquivo pertencente a qualquer usu�rio que esteja na base de dados (/etc/passwd ou NIS).
--
___ _ .''`.
| |_ _. _| _ |_) _ ._ ._ _. : :' :
| | |(_|(_|(/_|_| | (/_| || |(_| `. `'`
Linux User #50500 `-
Prof.Adjunto - Instituto de F�sica ---Debian-
Universidade Federal Fluminense Alpha/i386
-- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
