Creating TCP Health Checks

A TCP monitor opens a TCP connection to communicate between the Cloud Services Portal and DTC server. The connection is successful only when the handshake is complete. A successfully opened connection will be immediately closed or reset.

Complete the following steps to create a TCP Health Check monitor:

1. Go to Manage > DNS > DTC > DTC Health Checks.

2. Click Create DTC Health Check > TCP.

3. Configure the following in the TCP Health Check dialog:

   • Name: Enter a name for the TCP health monitor.

   • Description: Enter a description for the health monitor.

   • Interval (seconds): Enter the interval value in seconds. The health monitor runs only for the specified interval and it is measured from the begining of the previous monitor cycle. The default value is 15.

   • Timeout (seconds): Enter the timeout value in seconds. The monitor waits for the number of seconds that you specify after sending a request. If the monitor does not receive a response within the number of seconds that you specify, then it considers this check as failed. The monitor discards any response it receives after the timeout. The default value is 10.

   • Retries for Healthy Status: Enter an integer value. This value determines how many valid responses or good health checks in a row must be received by the monitor from the DTC server.

   • Retries for Down Status: Enter an integer value. It is the opposite of the Retries for Healthy Status count. This value determines how many unhealthy status health checks (server is unavailable) in a row must be collected by the monitor from the DTC server.

   • Port: Specify a port for TCP connection. You can specify a value between one and 65535.

4. Click Save & Close.