Explain Network file system (NFS).

55.Explain Network file system (NFS).
Ans.
1. NFS is the most common method used to share file over Linux and UNIX operating system.

2. It enables local access to remote disks and file system in a distributed manner.

3. If it is properly designed and implemented then it operates transparently to client using remote file systems.

4. It is possible that NFS clients are available for many non-UNIX operating systems, including the various windows, Solaris, Mac etc.

5. Even the files dispersed geographically, NFS provides easy sharing services of connection exist.

6. NFS follows standard client-server architecture.

7. The NFS contains all those file systems that user wants to share along with daemon by making them visible.

8. This way of sharing file NFS is called as NFS exports.

9. The NFS server daemons provide remote access to the expected file system, enabling file locking over the network and allows to enable disk quotes on the NFS exports.

10. On the client side, on NFS client simply mounts the expected file system locally. The mounted file system is known as NFS mount.

11. NFS is often used to provide disk less clients, such as X terminals or the client in the network, with their entire file system, including the kernel image and other boot files.

Comments

Java,ES,QT practical files

All practical files: Click below to start download Uploaded on special request||||

Absolute Links vs. Relative Links – SEO Value

Absolute Links vs. Relative Links – SEO Value The debate between absolute links and relative links continues to live on in the SEO world. The individual significance of each has been contested, but it is widely regarded that absolute links provide better SEO value on the whole than relative links. Many believe that absolute links have less potential for getting messed up when search engines index your page. It shouldn’t really make a difference, but many conclude that this is reason enough. Read more...

What are the server and client security considerations?

72.What are the server and client security considerations? Ans. Server security considerations: 1. Always use the root_squash option in /etc/exports. 2. Enabled by default so do not disable it. 3. With root squashing clients root account can’t even access or change files that only server’s root account can change or access. Client security considerations: 1. Disable SUID (set UID) programs on NFS mounts using nosuid option. 2. Prevents server’s root account from creating an SUID root program on an exported FS, logging in to the clients as a normal user, and then using the UID root program to become root on the client.

Ultimate IT solutions

Search This Blog