dnstracesort 1 user commands djbwares dnstracesort convert dnstrace output to human-readable form dnstracesort dnstracesort is a filter that converts the output of dnstrace1 from machine-parseable form into human-readable form. It uses TeleType Model 37 control sequences for boldface and underline, which can be interpreted by less1 or converted to your terminal's own control sequences with ul1. dnstracesort was originally part of Daniel J. Bernstein's djbdns toolset in 2000. Original code and documentation by Daniel J. Bernstein. Documentation modernizations by Jonathan de Boyne Pollard.