Monitors
Configure a TCP port monitor
Check that a host accepts TCP connections on the port your service needs and flag slow or repeated failures.
Set the connection
- Enter a hostname or IP address and a port from 1 to 65535. The form starts with port 80 as its default.
- Choose a check interval your plan allows, up to 1 hour. The default is 5 minutes.
- Set the connection timeout from 1 to 60 seconds. The default is 10 seconds.
- Set retries from 1 to 10 attempts. The default is 3.
- The probe fleet does not read this timeout or retry count yet: every check is a TCP dial with a fixed 10-second timeout and the fleet-wide retry policy, regardless of what you set here.
Validate the connection
- Add an optional expected response string, up to 1000 characters, when the service returns a banner or other predictable response.
- Set the connection-time threshold from 100 to 60000 ms. The default is 5000 ms.
- Set the failure threshold from 1 to 20 consecutive failures. The default is 3.
- Expected response and both thresholds are also saved but not applied yet: a check is judged up or down solely by whether the TCP connection succeeds.