Articles

Traffic Rules

• Configuring Traffic Rules for Multihoming in Kerio Control

  Overview Multihoming is a term used when one network interface (connected to the Internet) uses multiple public IP addresses. Typically, numerous services are available through individual IP addresses...

• Block Internet access for unauthenticated users and devices

  Overview While trying to prevent unauthenticated or unauthorized users and devices from accessing Internet web pages, specific Kerio Control settings should be applied. Internet access can be limited ...

• Block Internet browsing for a certain time period

  Overview If there is a need to create the Traffic rule to block all Internet browsing for a certain time of the day, i.e. from 7 pm till 6 am, the Time ranges should be predefined prior to the creatio...

• Allowing Office 365 traffic

  Overview When using Office 365 applications, such as Outlook client, the connection might be hanging, showing in progress state. This might be an indication, the traffic is being dropped by Kerio Cont...

• Allowing certain Games and Messengers traffic

  Overview While accessing online streaming, voice/video calls resources, online games, messengers through Kerio Control firewall, the users are getting frequent timeout errors every 2-3 minutes. The co...

• Allowing FTPS passive mode traffic

  Overview While connecting to FTPS service (port 990) from the remote location, the connection is not reachable. The connection is successful from the local interface or using standard FTP port 21. The...

• Allowing SIP traffic

  Overview While trying to configure external VoIP systems, such as Grandstream, the audio transmission appears to be one-way (no outgoing audio). This might be an indication of packets being dropped be...

• Blocking Spammers IPs reported by Kerio Connect

  Overview While Kerio Connect server is located behind Kerio Control (connected to the LAN interface), the Connect Security logs report unusual IP addresses trying to access the mail server or guess us...

• Configuring Autologin by Mac address with HTTP

  Overview While trying to set up an automatic login page to work with HTTP, a specific procedure needs to be applied. The authentication traffic should pass through Kerio Control as a reverse proxy (HT...

• Configuring Kerio Control to work with POS devices

  Overview While configuring POS terminals to enable communication with the firewall, specific Kerio Control settings need to be applied. It includes configuring traffic rules and services with required...