CrazyM, Tassie, Jack & the gang... Thank you for all the helpful input. I've tested now a couple of firewals against PCFlank. Kerio, no matter what I do, continues to show warnings on their tests...When I do their Advanced Port Scan it shows port 80 as CLOSED but not stealthed. When I run the same test on grc however, it shows PORT 80 as stealthed. I also tested SygatePro - EVERYTHING is stealthed on every test I've run against - on PCFLANK as well as 5 other sites, including PORT 80. Since SYGATE comes up full stealth on PCFLANK's tests everytime, it makes me question as to whether Kerio is simply not providing the same level of protection. I realize if that's the case, it's probably my error in my rulesets but I can not seem to stealth that port on PCFLANK consistently no matter what I try. This is my first try with a rules-based firewall and I'm beginning to think I'm not smart enough to use one yet. I don't want to open myself out of ingnorance because of improper settings. Do any of you run Kerio, and if so, is it showing up as SAFE on PCFLANK's QuickTEST or are you also getting warnings?