At present, I have a work-around. Instead of using bin/xymon to send
messages, I'm using curl to post the message file to https://server.domain.com/xymon/upload.php. On the server side, the upload.php script simply drops the message file into xymon's incoming stream, just as if it were delivered over the net by bin/xymon.
Good idea. I almost can copy this approach.
The client side has the server's CA cert to validate the connection and the data flow is encrypted in transit. I could use client certificates as well.
But I think this approach only works for Linux xymon client, since curl is readily available. Preparing curl for other Unix(say HP-UX) and Windows will be a big challenge.
Actually....
http://curl.haxx.se/download.html
Wanna run it on Haiku? How about an Amiga? :)