Border and Gateway Systems

OpenBSD is a known quantity for Border Systems (between your organisation and the outside world.

These notes will not help you build a secure system, but will hopefully provide some strategy for monitoring or debugging your configuration.

High Availability

OpenBSD offers some unique (?) tools for systems requiring high availability services.

Firewall

The Packet Filter Engine, PF, is a stateful packet filtering system developed by the OpenBSD developers.

Routing

In these we cover some information on OpenBSD's bgpd implementation, as well as some local notes on Cisco switches.

More research required.