MDNS/Bonjour printer discovery script

Here’s a script I wrote whose purpose is to discover the printers that are currently being advertised by Bonjour on the network. The reason I wrote it was for a Nagios check that would in term verify that our printers were present. Writing it took me through the meanders of MDNS in Python & on Linux with multiple vlans. Let’s just say non-trivial.



Sample output