Visit LearnItFirst, our new channel with over 100 videos! ——————————————————————————— So what exactly is ISA Server? ISA Server, which stands for Internet Security and Acceleration Server, is Microsoft’s software-based firewall, proxy, and web caching service/product. Now what does all of that mean? This video helps explain it! Highlights from this video: * What is a firewall and how does it help protect my network? * How ISA Server uses policies to control traffic * How web caching and the web cache work and much more Author: Grant Moyle