A server is a computer program or physical device that provides data, resources, or services to other devices, known as clients, over a network. In a Web hosting, server stores your website files and makes them accessible to people on the internet.
Key Characteristics
- High Availability: Built to run continuously without unexpected downtime.
- Redundancy: Feature backup power supplies, extra hard drives, and cooling systems to prevent failure.
- Strong Hardware: Include multiple enterprise processors, massive RAM capacity, and fast networking interfaces.
Common Types of Servers
- Web Server: Deliver web pages to internet browsers using protocols like HTTP (e.g., Apache, Nginx).
- Database Server: Store, retrieve, and manage structured data for applications (e.g., MySQL, PostgreSQL).
- File Server: Hold files and let multiple users share or access them across a local network or the cloud.
- Mail Server: Manage sending, receiving, and storing electronic mail.
- Application Server: Host and run business logic or software programs for client devices.
