I recommend Firehol on linux.
- 2013-08 Sophos UTM
- 2015-02 Using Sophos UTM 9.3 for a while, i like the FW, but find the web/application filtering very flaky.
- 2016-06 Upgraded to Sophos UTM 9.4 , web traffic leaking through between interfaces with not logging ?
- VPN integrated with Windows IPSec works great.
Interesting Firewall related articles