November 2004
Intermediate to advanced
328 pages
8h 12m
English
book
Securing NFS in AIX An Introduction to NFS v4 in AIX 5L Version 5.3
by Chris Almond, Lutz Denefleh, Sridhar Murthy, Aniket Patel, John Trindle
Content preview from Securing NFS in AIX An Introduction to NFS v4 in AIX 5L Version 5.3
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Chapter 3. Enhanced security in NFS V4 59
3.3 NFS V4 user authentication
By default, NFS uses the AUTH_SYS method to authenticate user identities.
Alternatively, you can use RPCSEC_GSS (Kerberos) to authenticate users.
3.3.1 AUTH_SYS user authentication
Under the AUTH_SYS security flavor, the user is authenticated at the client,
usually via a logon name and password. The NFS server trusts the user and
group identities presented by its clients. If someone gains administrative control
of an NFS client, or has control of a machine pretending to be a valid NFS client
via IP address spoofing, it is easy to masquerade as any valid NFS user.
For example, ...
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