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Public bug reported:
In our cloud deployment, we configured neutron-dhcp-agent
to have multiple external DNS servers
However, the last server on the list happened to be misconfigured (by others). So it returned SERVFAIL instead of correct responses and strace showed that dnsmasq only ever asked the last server for a name.
My testing shows that dropping the --strict-order parameter helped this problem.
It was introduced in commit 43960ee448 without reason given.
** Affects: neutron
Importance: Undecided
Assignee: Dirk Mueller (dmllr)
Status: In Progress
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https://bugs.launchpad.net/bugs/1746000
Title:
dnsmasq does not fallback on SERVFAIL
Status in neutron:
In Progress
Bug description:
In our cloud deployment, we configured neutron-dhcp-agent
to have multiple external DNS servers
However, the last server on the list happened to be misconfigured (by others). So it returned SERVFAIL instead of correct responses and strace showed that dnsmasq only ever asked the last server for a name.
My testing shows that dropping the --strict-order parameter helped this problem.
It was introduced in commit 43960ee448 without reason given.
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https://bugs.launchpad.net/neutron/+bug/1746000/+subscriptions
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