Articles

Activity logs Accesses HowTo's/Configuration Reporting Vulnerabilities

• Resolving DHCP error: Unable to allocate address, scope is exhausted

  Overview Kerio Control has a built-in DHCP server feature. From time to time, the DHCP server can stop assigning IP addresses for DHCP clients. The error log may show the following: DHCP error: Unable...

• DHCP Lease Renewal and Rebinding Processes

  Overview Kerio Control allows configuring advanced DHCP settings, such as lease time, DNS server, gateway, etc. In specific NAS or SMS gateway environments, DHCP lease interval may be requested too of...

• Configuring RingCentral VoIP bandwidth rules

  Overview While trying to configure QoS and bandwidth management rules for RingCentral traffic, the specific Kerio Control settings need to be applied. This article provides detailed information on how...

• Continuous DHCP lease requests

  Overview While reviewing Host logs, you may notice frequent DHCP lease requests for particular devices: [06/Oct/2020 14:45:45] [IPv4] 10.0.4.45 [MAC] 80-82-23-61-bf-a8 [Hostname] Sados-iPhone - IP add...

• Unable to see Source and Destination Country

  Overview When viewing the Active Connections on the Kerio Control Administration interface, the Source Country and Destination Country columns always come up empty/blank. This article provides an expl...

• Resolving MyKerio Error: Couldn't send ProductCommander RPC call

  Overview While trying to access Kerio Control via MyKerio, the appliance keeps dropping the network connection. Occasionally, you may receive the appliance cannot be reached right now MyKerio error. D...

• Resolving Transparent Proxy ERR_PROXY_CONNECTION_FAILED error

  Overview While having Kerio Control non-transparent proxy server enabled, you might receive a DNS lookup failed. This message was created by Kerio Control Proxy error. Such a message is shown in the w...

• Setting daily quota bandwidth restrictions

  Overview When trying to set users' bandwidth limitations for specific URLs or categories, Kerio Control settings should be modified accordingly. The requirements are to enable a Daily quota for all us...

• Setting minimum bandwidth for IP address

  Overview While trying to upload video content to Streaming services, it might be required to reserve a minimum bandwidth value. This way it's guaranteed the PC with a specific IP address gets the mini...

• Unknown Traffic to DNS Servers in Kerio Control Environment

  Overview The intrusion prevention system in your environment reports that different DNS queries are trying to resolve some hostnames/URLs. It reports this traffic as MALWARE-CNC DNS suspicious .bit dn...