Public bug reported:
Release: Ubuntu 16.04.2 LTS
network-manager package version: 1.2.6-0ubuntu0.16.04.1
I'm using Ubuntu Desktop 16.04 x64 and I have some VPN (OpenVPN and
Cisco vpnc) connections defined. In all these connections I use both
split tunnel and split dns.
When I connect to a remote VPN server, my Ubuntu client correctly resolves DNS
names in zones pushed by the remode server using the remote DNS server.
For example: the remote VPN server pushes to the client "DNS resolver is
192.168.10.1 for domain "vpndom.net"", then "host srv1.vpndom.net" is correctly
resolved bu 192.168.10.1 and I get 192.168.10.7.
After disconnecting and reconnecting to the VPN server, my Ubuntu client
is no longer able to resolve DNS names in zones pushed by the VPN
servers: "host srv1.vpndom.net" returns host not found.
As a temporary solution, I downgraded netowrk manager to
1.2.2-0ubuntu0.16.04.4 and all is working fine. So I think the problem
is in network-manager 1.2.6-0ubuntu0.16.04.1
As a workaround, with the connected VPN tunnel, I just "sudo killall
dnsmasq": NetworkManager will then restart dnsmasq passing it all
correct DNSes. There is no need to disconnect from the vpn.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1680226
Title:
Broken SplitDNS resolution in networ-manager VPN after disconnect and
reconnect
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