TCP

Overview

Check TCP service availability and responsiveness.

Configuration

Required parameters: |Name|Description| |----|-----------| |port|The TCP port on which the target service can be reached.|

Optional parameters: |Name|Description| |----|-----------| |banner_match|This regular expression is matched against the response banner. If a match is not found, the check will be marked as bad.| |use_ssl|Upgrade the connection to use SSL/TLS.|

Metrics

Typical metrics include: |Name|Type|Description| |----|----|-----------| |banner_match|text|If the banner_match parameter is supplied, this metric's value will be the string that resulted from the match.| |tt_connect|numeric|Elapsed time from the start of the check to completing the TCP connection, in milliseconds.| |duration|numeric|Elapsed time from the start of the check to its completion, in milliseconds.|\