Binary package “rt4-extension-nagios” in ubuntu focal

merge and resolve Nagios tickets in RT

 Nagios <http://www.nagios.org> is a monitoring system that enables
 organizations to identify and resolve IT infrastructure problems.
 .
 This extension allows email alerts generated by Nagios to be aggregated
 and resolved as it generates them. It does this by examining the
 standard subject line that Nagios generates.