Can I install Lavasoft Personal Firewall on a server?

Yes, but we do not recommend it. The Lavasoft Personal Firewall was designed specifically to run on user workstations connected to a LAN (Local Area Network) or the Internet. Lavasoft Personal Firewall does not have several important features that a server firewall must have. All presets are configured for workstations while a server firewall would have very different application blocking settings. If you install the Firewall on a server with the default settings, much of the useful traffic to or from your server will be blocked by default.