I've been using kerio 2.15 for some time and I'm looking to change to something more up to date but free, light and preferably still rules based. I know there are tons of "which firewall...?" threads but I'm looking for some specific advice. Firstly, how important is it to be able to control which local ports applications can have access to? I ask this because I've tried both NetVeda (which won't work properly on my comp anyway) and filseclab and I liked them both but was unable to control the local ports access. Secondly, I've been looking at SoftPerfect but it doesn't seem it has app control and R-Firewall which looks really promising and reminds me of Outpost Free which I used to use but like Kerio, is a little ancient. I've read threads on both but nothing really recent and I would like to know if anyone has been using either for any length of time and whether they have proved their worth? Finally, I remember a while ago there was some mention of an open source version of Kerio 2.15 called KerioKlone or Ghost or something. Is this still in the works or it is ever likely to see the light of day?