Sorry, the "backfeed queue" :)
See README.backfeed: https://sourceforge.net/p/xymon/code/HEAD/tree/branches/4.x-master/README.backfeed
The short of it is that it provides an alternate way of submitting messages
to xymond for local processes, using SysV-IPC instead of localhost TCP
connections. It's much more efficient for injecting lots of messages, but
sort of obviates the testing of xymond submissions over IPv6 :)
I see.
Looking into this more, I believe we'll be able to use the existing "conn"
framework for handling multiple IP addresses, but we may need a default set
of flags for how to handle priority and fallbacks on DNS lookup.
I'd envision something along the lines of:
IPv4 Only
IPv4 Mandatory/IPv6 Optional
IPv4 Optional/IPv6 Mandatory
IPv6 Only
I agree with Adam and even think
IPv4 Mandatory/IPv6 Mandatory
would be the default in our case.
I'll be ready to perform more tests after the Easter break.
cheers,
-d