Understanding Web Architecture
HTTPs, Certificate Authority, Self-signed Certificate
What is a Web Server?
Resources:
Serverless
Microservices
Monolith
- Monolith - Everything is togather; Individual components are hard to upgrade or scale
- Codebase lives on the same server & usually in same repository.
Non-Monolith (MicroService)
- Isolated components that are divided by responsibility
- Independent scaling of the components
- Standardized interface (API) so any service can use it
- Can be independently developed by different teams
Resources:
Communication & Firewalls
Communication
- Services usually have one, or a few ports open
- Usually they restrict who can talk to them
- Encryption is not necessary INSIDE the cluster
Firewall
- Firewall filters for:
- Request origin (domain or IP)
- Port used
- content (exploits, sql injection)
- Frequency (DDoS / throttling)
Resources:
Caching
Types of caching:
Client Side
- Browser cache
- Service worker/ Single Page Apps (SPAs)
Network
- DNS cache
- Content Delivery Network
- HTTP cache (Varnish)
Server Cache
- Object cache
- Database cache
Resources: