August 2000
Intermediate to advanced
816 pages
29h 45m
English
book
Linux in a Nutshell, Third Edition
by Ellen Siever, Stephen Spainhour, Jessica P. Hekman, Stephen Figgins
Content preview from Linux in a Nutshell, Third EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Overview of NFS
The Network File System (NFS) is a distributed filesystem that allows users to mount remote filesystems as if they were local. NFS uses a client-server model, in which a server exports directories to be shared, and clients mount the directories to access the files in them. NFS eliminates the need to keep copies of files on several machines by letting the clients all share a single copy of a file on the server. NFS is an RPC-based application-level protocol. For more information on the architecture of network protocols, see Section 2.3 earlier in this chapter.
Administering NFS
Setting up NFS clients and servers involves starting the NFS daemons, exporting filesystems from the NFS servers, and mounting them on the clients. The /etc/exports file is the NFS server configuration file; it controls which files and directories are exported and what kinds of access are allowed. Names and addresses for clients receiving services are kept in the /etc/hosts file.
Daemons
NFS server daemons, called nfsd daemons, run on the server and accept RPC calls from clients. NFS servers also run the mountd daemon to handle mount requests. On the client, caching and buffering are handled by biod, the block I/O daemon. The portmap daemon maps RPC program numbers to the appropriate TCP/IP port numbers.
Exporting Filesystems
To set up an NFS server, first check that all the hosts that will mount your filesystem can reach your host. Next, edit the /etc/exports file to include the mount-point ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.