Released on October 11, 2022 , Kerio Control 9.4.2 served as a stabilizing update focused on refining network performance and resolving critical connectivity issues for small to mid-sized businesses. The Core Improvements of 9.4.2
Login Customization: Note that custom login pages may not display correctly on Guest or User alert pages in this version. kerio control 9.4.2
VPN 2FA Token Expiration: A new configuration option allows administrators to set specific expiration times for Two-Factor Authentication (2FA) tokens for VPN connections, improving security control. Released on October 11, 2022 , Kerio Control 9
Security Vulnerabilities: This version has known vulnerabilities that were patched in later releases like 9.4.3. Summary Verdict Single WAN (LTE cellular) with failover to satellite
/opt/kerio/control/bin/backup_config /mnt/usb/kerio-backup.cfg
Upgrade Challenges: Users upgrading from 9.4.2 to later versions often encounter a "free space in memory" error in the Web Admin UI. This is due to stricter file size checks implemented in this build that were only relaxed in version 9.4.3p4 or later.