Differences between NFS, FTP, and telnet

Transferred from: http://blog.21ic.com/user1/2663/archives/2009/64921.html

Network File System (NFS,

FTP (file transfer protocol) file transfer protocol,

Telnet is a remote logon protocol, and all access files are transmitted over the network.

NFS is used to store the remote disk locally.
FTP is mainly used to download files. It cannot be modified on the server, and there are a series of FTP commands for remote server operations.
Ssh, telnet, and other remote logon protocols can be used to modify files on the server.

NFS Maps Remote directories to a local directory, which occupies local CPU computing.

Telnet is performed on a remote machine, which occupies remote CPU computing.

Telnet and other remote logon protocols are generally used for management.
NFS is generally used for diskless networks or embedded chips.
A diskless network is a computer network that stores files such as the operating system and application software of a workstation on the server disk.

NFS is a relatively low-level concept. It is a file system. Like NTFs and FAT32, a driver is required and mounted.
Remote logon is a relatively top-level application. Communication between the two system software after the service is installed.

Some problems with the NFS installation and configuration of fedore 9:
Turn off the firewall, set the same network segment, and use a cross Line (or use a hub to connect ).
If it can be mounted locally, other hosts cannot be mounted. The error is: Mount. NFS: Internal error,
Solution see: http://lgnice.cn/index.php/category/cq8401
Service: Service NFS start (/etc/rc. d/init. d/nfs start)
Mount command: Mount-t nfs 202.198.111.1:/home/sword/share/mnt