» Linux » Examen sur Linux » Examen 201 : Advanced Administration » Section 3 » Question 20/20
20.Which of the following daemons must be running on an NFS server?

port map
nfsiod
nfsd
xinetd
mountd

Explanation: If you want to provide NFS service to other hosts, you have to run the rpc.nfsd and rpc.mountd daemons on your machine. As RPC-based programs, they are not managed by inetd, but are started up at boot time and register themselves with the portmapper; therefore, you have to make sure to start them only after rpc.portmap is running. Port map provides port information to clients requesting RPC services on the server.
Mountd determines which file system and devices are available to which machine and users. Nfsd is the daemon on the server that handles client file system requests.

Reference: http://www.linuxvalley.it/encyclopedia/ldp/guide/nag2/x-087-2-nfs.daemons.html

Incorrect Answers
B: Nfsiod runs on an NFS client machine to service asynchronous I/O requests to its server. It improves performance but is not required for correct operation.
D: Xinetd is a replacement for inetd, the internet services daemon, and offers improved functionality. However, it is not a requirement to run NFS.

« Question 19