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  • Creating SSL Certificates with Alternative DNS Names

    Overview If you configure the reverse proxy for your web servers, you can use just one certificate for all the web servers placed behind the reverse proxy.   Back to top   Process To create an SSL cer...

  • Creating an SSL Certificate Signed by Local Authority

    Overview This article will show you how to create a new SSL certificate if the old one is not valid anymore.   Back to top   Process In the Administration interface, navigate to Definitions > SSL Cert...

  • Accessing Kerio Control's Shell Using SSH

    Overview This article provides the steps required to access Kerio Control's shell using Secure Shell (SSH). This is helpful when you need to perform general troubleshooting, specifically on network is...

  • Displaying Kerio Control Statistics

    Overview By default, Kerio Control Statistics displays statistics of the current day. However, you can change the view and customize the period for which to show statistics.   Back to top    Process I...

  • Reading the User's Activity

    Overview The User's activity tab shows detailed information about your browsing activities. You can see: What you were doing on the Internet during the selected period How much time you spent browsing...

  • Disabling TLS Versions on Kerio Control

    Overview Administrators may fail PCI compliance scans because a deprecated TLS protocol is still enabled on the Kerio VPN port 4090. The older versions of TLS could be affected by multiple cryptograph...

  • Debug Log Message: 'TCP sequence/acknowledge numbers out of window' While Establishing Connections

    Overview While establishing the connections, the packets are being dropped with the following entry in the Debug logs: [10/Jan/2020 14:30:22] {pktdrop} packet dropped: TCP sequence/acknowledge numbers...

  • Customizing Email Notification Templates

    Overview From time to time, there may be a requirement to configure customized Email templates for specific email notifications (e.g., Virus alert, Antivirus check, Backup, etc.). Original email alert...

  • Configuring Anti-Spoofing and Block DHCP Scopes

    Overview   This article provides information about advanced Security features such as Anti-spoofing and DHCP scopes blocking and the steps to configure them.   Preconditions   Access to Kerio Control ...

  • IP Tools Unable to Resolve DNS

    Overview   This article provides the troubleshooting steps on how to check and change your DNS settings manually when Kerio Control's IP tools are not able to resolve FQDN servers.   Information   Ker...