My network monitors are picking up: 01:34:12.685869 IP mymachine.mydomain.com.5353 > 224.0.0.251.5353: 0 PTR? _pgpkey-hkp._tcp.local. (40) from a new Ubuntu 8.04 machine. What is it? Thanks, John -- John Conover, conover at rahul.net, http://www.johncon.com/