Public bug reported:
After connecting to OpenVPN server Network Manager reconfigures dnsmasq
to use DNS server provided by OpenVPN server for remote domains. On new
trusty install this also removes the previously configured default DNS
entry:
syslog fragment from saucy system (skipped unrelated parts):
Apr 8 22:26:50 msylw-imac NetworkManager[1365]: <info> Forbid Default Route:
yes
Apr 8 22:26:50 msylw-imac NetworkManager[1365]: <info> Internal DNS:
10.68.0.1
Apr 8 22:26:50 msylw-imac NetworkManager[1365]: <info> DNS Domain: 'openvpn'
Apr 8 22:26:50 msylw-imac NetworkManager[1365]: <info> No IPv6 configuration
Apr 8 22:26:50 msylw-imac dnsmasq[2932]: reading /etc/resolv.conf
Apr 8 22:26:50 msylw-imac dnsmasq[2932]: using nameserver 127.0.1.1#53
Apr 8 22:26:50 msylw-imac dnsmasq[2932]: using local addresses only for
unqualified names
Apr 8 22:26:51 msylw-imac whoopsie[1431]: online
Apr 8 22:26:51 msylw-imac NetworkManager[1365]: <info> VPN connection
'OpenVPN' (IP Config Get) complete.
Apr 8 22:26:51 msylw-imac NetworkManager[1365]: <info> Policy set 'fake mac'
(eth0) as default for IPv4 routing and DNS.
Apr 8 22:26:51 msylw-imac NetworkManager[1365]: <info> Writing DNS information
to /sbin/resolvconf
Apr 8 22:26:51 msylw-imac dnsmasq[1936]: setting upstream servers from DBus
Apr 8 22:26:51 msylw-imac dnsmasq[1936]: using nameserver 10.68.0.1#53 for
domain 10.in-addr.arpa
Apr 8 22:26:51 msylw-imac dnsmasq[1936]: using nameserver 10.68.0.1#53 for
domain openvpn
Apr 8 22:26:51 msylw-imac dnsmasq[1936]: using nameserver xxx.xxx.xxx.xxx#53
syslog fragment from saucy system (skipped unrelated parts):
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Forbid Default Route:
yes
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Internal DNS: 10.68.0.1
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> DNS Domain: 'openvpn'
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> IPv6 configuration:
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Internal Address:
fd90:2810:5452::1001
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Internal Prefix: 64
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Internal Point-to-Point
Address: fd90:2810:5452::1
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Maximum Segment Size
(MSS): 0
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> Forbid Default Route: no
Apr 8 22:20:15 msylw-air NetworkManager[899]: <info> DNS Domain: 'openvpn'
Apr 8 22:20:15 msylw-air nm-openvpn[5055]: Initialization Sequence Completed
Apr 8 22:20:17 msylw-air NetworkManager[899]: <info> VPN connection 'Hokudai'
(IP Config Get) complete.
Apr 8 22:20:17 msylw-air NetworkManager[899]: <info> Policy set 'wifi' (wlan0)
as default for IPv4 routing and DNS.
Apr 8 22:20:17 msylw-air NetworkManager[899]: <info> Policy set 'OpenVPN'
(tun0) as default for IPv6 routing and DNS.
Apr 8 22:20:17 msylw-air NetworkManager[899]: <info> Writing DNS information
to /sbin/resolvconf
Apr 8 22:20:17 msylw-air dnsmasq[1943]: setting upstream servers from DBus
Apr 8 22:20:17 msylw-air dnsmasq[1943]: using nameserver 10.68.0.1#53 for
domain 10.in-addr.arpa
Apr 8 22:20:17 msylw-air dnsmasq[1943]: using nameserver 10.68.0.1#53 for
domain openvpn
Note no last entry for default nameserver. As for me the DNS server provided
by OpenVPN serves only local addresses this breaks internet connectivity.
** Affects: network-manager-openvpn (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1304437
Title:
After connecting to OpenVPN server the default DNS is no longer
available
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