NFS V4 host identification
The NFS V4 server identifies client hosts using these methods.
- Basic host identification
- An NFS V4 server identifies client hosts by the IP address given in the Remote Procedure Call (RPC) packets. The NFS server turns this IP address into a host name using a host resolver, which gets its information from the Domain Name System (DNS) or the local /etc/hosts file.
- Kerberos host identification
- Kerberos authentication uses a unique identifier called a machine
principal to identify hosts. The machine principal is established
when configuring a host into a Kerberos realm. The machine principal
name is the fully qualified host name prefixed with
Kerberos can indirectly identify a host is through the NFS service principal (the identification of the NFS service running on the host). The service principal name is the fully qualified host name prefixed with