https://deepstreamhub.com/blog/an-overview-of-realtime-protocols/
/etc/network/interfaces /etc/hosts /etc/resolv.conf
NFS :
/etc/exports
ipv6 : http://forum.ubuntu-fr.org/viewtopic.php?id=3567
grep "alias net-pf-10 off" /etc/modutils/aliases # check uncommented