DNS redundancy fails when 1 of the 2 DNS servers is unavailable
mkoelewijn opened this issue · 2 comments
Yesterday we had an outage on 1 of the 2 DNS servers we use with our eduVPN profile. While Viscosity and the Windows eduVPN app kept on working the OS X did not. It timed out because no DNS servers where responding... (the 192.87.36.36 was unavailable in this example)
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eduVPN MAC OS > does not work!
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resolver #1
(included my home network)
resolver #2
search domain[0] : openvpn
nameserver[0] : 192.87.106.106
nameserver[1] : 192.87.36.36
nameserver[2] : 2001:610:1:800a:192:87:106:106
nameserver[3] : 2001:610:3:200a:192:87:36:36
if_index : 18 (utun2)
flags : Scoped, Request A records, Request AAAA records
reach : 0x00000002 (Reachable)
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Viscosity OS X / eduvpn > works!
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resolver #1
search domain[0] : utun10.viscosity
nameserver[0] : 192.87.106.106
nameserver[1] : 192.87.36.36
nameserver[2] : 2001:610:1:800a:192:87:106:106
nameserver[3] : 2001:610:3:200a:192:87:36:36
if_index : 18 (utun10)
flags : Scoped, Request A records, Request AAAA records
reach : 0x00000002 (Reachable)
resolver #2
(included my home network)
I am afraid I have no idea what happened there or what could cause this.
Probably fixed in eduvpn/apple#114 which uses entirely new mechanism to setup VPN connection using Network Extensions. That should also resolve this problem.