Dictionary · Networking Hardware
Network Appliance
Devices · Intermediate
A purpose-built device that performs a network function such as firewalling, load balancing, or detection. It is managed as a product rather than as a general-purpose server.
Instead of installing software on any computer, a team racks a box built and supported for one job. The same function can also exist as a virtual machine.
Example: A security team deploys a dedicated firewall appliance with two interfaces: one toward the provider and one toward the internal core.
Common misconception
- Purpose-built does not mean infallible. Appliances still need patches, backups, and access control.