DUTIES OF SYSTEM ADMINISTRATOR(Installing and Configuring Server)

Installing and Configuring Servers

1.       Linux “server” has a very broader  meaning . The standard Red Hat Linux graphical user interface (GUI) requires a graphical layer called XFree86. This is a server. This server runs even on a standalone machine with one user account and it must be configured.

2.       Likewise, printing in Linux takes place only after you have configured a print server.

3.       You cannot graphical desktop without a Xserver.

4.       But you can have you can have World Wide Web access without a Web server , file transfer protocol (FTP) access without running an FTP server, and Internet e-mail capabilities without ever starting a mail server.

5.       Whenever a server is connected to machines outside your physical control, security issues arise. You want users to have easy access to the things they need, but you don’t want to open up the system you’re administering to the whole wide world.

System Administrator need to know exactly which server you need and how to employ them, because it is a bad practice and potential security nightmare to enable the services that system is not using and does not need.