I use linux mint on my laptop with resolvconf and dnsmasq for doing dns resolution. When I connect to my vpn the NetworkManager updates dnsmasq via dbus with the vpn dns servers.
I can use nmcli dev list to see the wifi dhcp DNS ips and i can send SIGUSR1 to get some output from dnsmasq about upstream servers. When I read about ubuntu/mints use of dnsmasq with VPNs I read that they send the dns search suffix so that dnsmasq only uses the vpn's DNS for requests to things in that domain. Does the SIGUSR1 output _all_ of the DNS servers that dnsmasq knows about? When I run it after connecting to my VPN I only see my VPN DNS servers. I know this isn't a dnsmasq problem but in trying to diagnose the problem I find myself wanting to query dnsmasq for all of its upstream DNS servers. Since it goes over dbus I dont get a good picture from resolvconf config. If SIGUSR1 doesn't curently output this then I would like to file a suggestion that it include all upstream servers and what dns suffixes they are configured for as that would help this situation I think. Thanks so much! Steve
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