Version 9.4.2 supports two main types of VPNs.
To ensure a smooth transition, follow the official upgrade path provided by GFI.
Kerio Control acts as a DNS forwarder for the LAN. It caches DNS requests to speed up browsing and allows you to create custom internal DNS records (Hosts) without needing a separate Windows DNS server.
Migrating firewall rules can be automated using config export from Kerio (XML) and custom scripts. kerio control 9.4.2
If you are considering moving away from or updating Kerio Control 9.4.2, here are your options.
Unlike traditional firewalls that only monitor IP addresses, Kerio Control 9.4.2 recognizes specific network users.
Before focusing specifically on version 9.4.2, it is essential to understand the product's architecture. Kerio Control is a software-based (or hardware appliance) router/firewall solution. It combines: Version 9
Your chosen (Physical hardware, VMware, or Hyper-V?) Your total number of network users The specific internet speed (bandwidth) you need to manage
This usually means incorrect NAT traversal rules. Go to Network Rules > add a rule allowing VPN subnet (e.g., 10.10.10.0/24) to LAN subnet (192.168.1.0/24) with Source NAT disabled.
The update resolves that occurred when using RADIUS servers . This improvement ensures that RADIUS-backed authentication remains robust for corporate wireless networks managed through Kerio Control. IPsec SNAT Fixes It caches DNS requests to speed up browsing
This component classifies web traffic into over 100 continuously updated categories. Administrators can block access to malicious, unproductive, or legally problematic websites.
Downgrade not officially supported; restore backup from old version.
Kerio Control excels at granular web filtering.
, if you need a rock-solid, no-subscription (beyond your license), on-premises firewall for a small network, and you understand the trade-offs regarding modern encryption and cloud features. 9.4.2 delivers exceptional uptime, a clean interface, and the core UTM functions that SMBs actually use.
