How to properly configure Kerio from the point of network security?

Question

Network administration

Actually, Software Kerio, the situation is as follows, because. I have been working with Kerio for a relatively short time. There are questions:
1) "Traffic Rules" how to properly organize a VPN Tunnel (through Kerio) so that from home you can enter the office to network folders / workstations in terms of network security.
2) How can I find out in Kerio which ports are open or everything that is not specified in the "Traffic Rules" in the port plan is closed?
3) How can I hide the external static. ip address through Kerio, when entering from outside?

Answer 1

1) When you install "from scratch" out of the box, the built-in VPNs and all the corresponding services and rules are automatically deployed there. You just need to activate vpn in the network connection settings.
2) The easiest is to scan your external IP (white) with some kind of scanner. And so, in theory, all ports are listed in the "Services" column in the rules.
3) Probably not, but it's not clear what exactly you mean. Need details.

Answer 2

1 read man there everything is simple.
2 By default, all firewalls close everything, you need to open everything explicitly, in Kerio such a rule is created by a wizard at the start. Based on the principle that you will not forget to reveal what you need.
3. more information the question is not disclosed.

Answer 3

Kerio is the same iptables study iptables you will begin to understand both mikrotik and openwrt and pfsense and ipfire as they are all based on iptables