Capability (Network)
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- Content Delivery Network (CDN) - A Content Delivery Network (CDN) distributes content (e.g. static data such as HTML, PNG images, videos, applications, etc) from an origin server to a location closer to the user's region in order to reduce latency and bandwidth costs. It may work both on a passive cache-aside basis but also as an active on-push system.
- DNS Load Balancing - A technique for load distribution, load balancing, or fault-tolerance implemented, in its simplest form, by resolving DNS entries to multiple hosts. 🌐
- Delimitarised Zone (DMZ) - A DMZ is a physical or logical subnetwork that exposes an organisation's external-facing services to an untrusted network, usually the Internet. 🌐
- Forward Proxy - A forward proxy acts as an intermediary for requests from clients seeking resources from other servers. 🌐
- HTTP URL Redirect - The ability to redirect to a website (normally using a 3XX HTTP code). 🌐
- Layer 4 Load Balancer - A Layer 4 load balancer operates at the general TCP/IP level and is unable to get health status other than by using the likes of ICMP (ping).
- Layer 4 Sticky Sessions - Layer 4 sticky sessions normally rely on the originator's IP address or MAC address (in a LAN scenario).
- Layer 7 Load Balancer - A Layer 7 load balancer is aware of the application protocol's semantics. For example, a HTTP-aware load balancer can use HTTP codes for health status as well as providing HTTP-level routing and reverse proxying.
- Layer 7 Stick Sessions - Layer 7 sticky sessions rely on assumptions about the application protocol's semantics. For example, in the case of HTTP, URL fragments or Cookies may be used to determine unique sessions.
- Reverse Proxy - A reverse proxy retrieves resources on behalf of a client from one or more servers. 🌐
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