What are cache size recommendations for ISA Server 2000 (corporate and ISP setups)?
The processor load increases with more Ruled/ restrictions. So if you are planning to leave it open access, more RAM would be the way to go. You may want to use perform to determine bottlenecks. For small loads anything over 250MB will be good. For large loads, say > 1000 clients, 1GB will be more like it. You could also use the Proxy 2 algorithm of 100MB + .5mb per client of cache file.