3-tier architecture
Obvious variations
Instead of Linux
- No alternative, really. Nearly all of the servers used to
support websites and apps run on Linux.
Instead of Apache
- Nginx is the main alternative. Designed for higher performance
and smaller footprint than Apache.
Instead of MySQL
- Postgres, obviously.
- Or any database system.
- NoSQL systems are current, popular alternatives.
Instead of PHP
- Java
- Javascript
- Less often: Python
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