Network test in UNIX:

 You can test your network connection to a particular UNIX System by using ping Command in the command line interface, you can specify the destination by using the IP address or an URL and press enter. As Example given bellow.

Example:   ping

Note: you can press Ctrl+C to stop sending packets and show the summary data.

The Round trip time in milliseconds for each packet shows the speed at which the connection is performing, you can also check how many packets are lost. A 0.0% packet loss shows that the network is performing adequately.

User Interface in UNIX:

Users normally prefer using graphical interface than command line interface. To Provide more attractive and comfort to the user, several GUI has been created for the UNIX this include desktop environments, graphical configuration tools.

The most popular UNIX GUI are 
Common Desktop Environment [CDE], 
Gnome and
K Desktop Environment [KDE].

Accessing UNIX:   We can access UNIX System any one of three methods.

1.     Local Login :  When you start the Operating System it shows the Login screen, After logging in it starts the Command-line session.

2.  Client-server Login : Client server login is accessing a UNIX Computer by mounting Shared file systems, there is no need to login to server to access the file, and you just need a permission to access it.

3.  Remote Login : Remote login involves logging into UNIX from another computer using programs such as relogin and telnet, once you connect with a UNIX system. It presence you with a login Screen After that the process is exactly same as local login.

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