Web Server

SERVER

 local & web

 Vikash Ranjan Jha                                                                                                                                                               vikash4225@gmail.com

INTRODUCTION

The word “Server” means anything that provided some useful things to the people requesting for that. But in the world of internet server is any computer with some essential software installed on it. Server is somewhere considered as hardware and somewhere as software. It has physical as well as virtual existence. Server is either used for internet or intranet. When it is used for internet it is called web-server and when it is used for intranet it is called local-server. There is a single difference between two server and that is: web-server can be accessed world-wide over internet but local server can be accessed only in locality over wireless network LAN Wi-Fi Wan Man. 

CLIENT-SERVER MODEL

In the client server model there exist a server computer and clients are accessing it through their web browsers. Different clients have different privileges like HTTP, FTP, SMTP. HTTP clients can only view the pages of server, FTP clients can transfer files to servers, and SMTP clients can send and receive short message with server.  

LOCAL SERVER

Configuring a local server require a running computer with any OS with some free memory space on hard disc and efficient physical memory. Server can be configured by using software like Apache, IIS, XAMPP, WAMPP, LAMPP. Local server acts on client server model where server can be accessed through web browser. Just client should know the server address i.e. IP or URL.       

WEB SERVER

Any local server can be converted into web server by getting connected to internet. Internet connection must not be through any local network. Otherwise the router have to redirect request to server IP address.

TYPES OF IP ADDRESS

Local Static IP

Local Dynamic IP

Internet Static IP

Internet Dynamic IP

Local Static IP is configured by local server router.

Local Dynamic IP appeared while connected to any local network.

Internet Static IP is defined by Internet service providers.

Internet Dynamic IP appeared when connected to internet using some dial-up, plug and play devices.

Server Location

When server is created a server place in the form of folder is created like in WINDOWS it is named HTDOC or WEBROOT, and in LINUX it is WWW. Whatever files are placed in these folder that can be accessed over the networked as per the privileges.