Articles

Configuration, FAQ

• High Availability Internal Mechanism

  Overview This article provides information to clarify the high availability (HA) internal mechanism (Virtual Router Redundancy Protocol (VRRP)  and ucarp) in Kerio Control version 9.3.0 and above.  No...

• Kerio Control High Availability (HA) Special cases

  Overview This article explains various special cases in High availability configuration regarding managing Wi-fi and PPPoE, auto-creation of routes, and traffic rules. Additionally, it provides clarif...

• Configuring High Availability in Kerio Control

  Overview Kerio Control version 9.3 or newer supports High Availability in Active/Passive mode. Having this configuration in place ensures that if the Master Kerio Control appliance fails, the Slave ap...

• High Availability (HA) Status and Health Check messages

  Overview While trying to configure Kerio Control in HA mode, the connection between Master and Slave device might be failing. If the interface settings or HA variables are misconfigured, Kerio Control...

• Configure High Availability with 2 Internet connections

  Overview When trying to configure High availability mode between hardware boxes with two Internet connections, it requires a specific setup. It includes port and switch configuration to connect Kerio ...

• Changing Directory Service settings for HA functioning

  Overview While using HA mode in an Active Directory-based environment, the connection to AD DC might fail when the master goes down. The hostname of the slave and master are identical in this scenario...

• Disabling HA Configuration for Internet Interfaces

  Overview When using High Availability mode, slave instance disables WAN Internet interfaces for Master appliance by default. This makes Master administration inaccessible when the HA configuration is ...

• Changing Interface settings for HA functioning

  Overview While configuring Kerio Control in High Availability mode, the DHCP server can assign the wrong IP address (virtual IP) as a DNS server. The DNS server can be manually set in Network Interfac...

• Configuring Virtual IPs and MAC addresses for HA in Hyper-V

  Overview While facing issues with MAC address for Virtual IP flapping between Master and Slave appliances, the specific settings should be applied to Hyper-V configuration. Incorrect default MAC addre...

• Connection drops while editing Network interfaces in HA mode

  Overview While modifying Kerio Control Interfaces in High Availability, the Virtual IP gateway used for HA is losing the connection for a short time period. When disabling or modifying the Interfaces ...