5)Roles of Servers in a Network ICT-unit-1

Roles of Servers in a Network


Servers play a critical role in providing centralized services and managing network resources. Here are common types of servers and their functions:

1.File Server:

Stores and manages files so that users (clients) can access, upload, and modify shared documents. In an office, employees access documents stored on the file server, which manages storage, security, and backups.

2. Web Server:

Hosts websites and delivers web content (HTML pages, images, scripts) to users via the internet or intranet. A web server like Apache or Nginx hosts company websites, allowing users to browse them online.

3. Database Server:

Manages databases and handles data storage, queries, and updates. It processes requests from clients who need to retrieve or modify data. A MySQL server handling requests for data in an e-commerce platform, such as customer information or product details.

4. Application Server:

Runs and manages applications for users across the network. It handles the backend logic for specific applications (like payroll or ERP systems). A Tomcat application server running business software for an organization, allowing employees to interact with internal tools.

5. Email Server:

Manages the sending, receiving, and storing of emails for users within the network. A Microsoft Exchange or Gmail server processes incoming and outgoing mail for users in a business or educational setting.

6.DNS Server:

Translates domain names (like www.example.com) into IP addresses that computers can understand, enabling access to websites. When you type a website URL into your browser, a DNS server converts that URL into the correct IP address to reach the website.

7.Proxy Server:

Acts as an intermediary between clients and other servers, providing security, content filtering, and anonymity by masking the client’s identity. A proxy server used by a company to control employee internet usage and block access to certain websites.

8. Print Server:

Manages print jobs from multiple clients, allowing users to send print requests to shared printers within the network. An office print server that queues and handles print requests from different computers.

9. Backup Server :

Regularly backs up data from other computers or servers on the network to prevent data loss and ensure recovery in case of failure.

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