I think I am observing a regression caused by this fix: after
disconnecting/reconnecting a VPN connection, DNS resolution is broken.
Here are the details:
- VPN is set up as OpenVPN with split-tunneling ("Use this connection
only for resources on its network" is checked). The VPN's DNS domain is
ozone.caligrafix.cl, and the DNS server is 192.168.0.2. The local (non-
VPN) DNS server is 192.168.50.2.
- Right after boot, and after connecting to the VPN for the first time,
I can ping a host on the VPN's network (ping
somehost.ozone.caligrafix.cl)
- If I disconnect and reconnect to the VPN, I cannot ping the same host
by name (I get Name or service not known). I can ping it by IP.
Strangely enough, dnsmask says it does use the VPN's resolver, as shown
by this syslog extract:
Nov 1 23:09:28 tadzim3 dnsmasq[1671]: setting upstream servers from DBus
Nov 1 23:09:28 tadzim3 dnsmasq[1671]: using nameserver 192.168.50.2#53(via
wlan0)
Nov 1 23:09:28 tadzim3 dnsmasq[1671]: using nameserver 192.168.0.2#53 for
domain ozone.caligrafix.cl
Nov 1 23:09:28 tadzim3 dnsmasq[1671]: using nameserver 192.168.0.2#53 for
domain 1.8.10.in-addr.arpa
Nov 1 23:09:28 tadzim3 dnsmasq[1671]: using nameserver 192.168.0.2#53 for
domain 0.168.192.in-addr.arpa
Nov 1 23:09:28 tadzim3 dnsmasq[1450]: reading /etc/resolv.conf
Nov 1 23:09:28 tadzim3 dnsmasq[1450]: using nameserver 127.0.1.1#53
^C
gpothier@tadzim3:~$ ping somehost.ozone.caligrafix.cl
ping: somehost.ozone.caligrafix.cl: Name or service not known
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https://bugs.launchpad.net/bugs/1592721
Title:
Don't write search domains to resolv.conf in the case of split DNS
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