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Validate upstream reachability on first DNS configuration (#1489)

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* Test upstream DNS for availability as soon as they are received from management

* Use root zone for DNS tests
This commit is contained in:
Viktor Liu
2024-01-23 17:23:12 +01:00
committed by GitHub
parent 5ac9f9fe2f
commit 88117f7d16
8 changed files with 119 additions and 23 deletions
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4
client/internal/engine.go
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@ -682,6 +682,10 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
log.Errorf("failed to update dns server, err: %v", err)
}
// Test received (upstream) servers for availability right away instead of upon usage.
// If no server of a server group responds this will disable the respective handler and retry later.
e.dnsServer.ProbeAvailability()
if e.acl != nil {
e.acl.ApplyFiltering(networkMap)
}