Check manual page of check_ftp

FTP Server
Distribution	Official part of Checkmk
License	GPLv2
Supported Agents	Active

This performs an active check of an FTP server. It does this by connecting to the server using the FTP control socket, looking for the welcome message and justing sending QUIT.

It can check response times against given thresholds. In fact internally it uses the generic TCP connection check.

Item

The port number (optional).