net: Ambigous error message in dnsclient

[synergiator]

There is an issue with the Golang DNS client implementation:

errServerMisbehaving         = errors.New("server misbehaving")
errServerTemporarilyMisbehaving = errors.New("server misbehaving")

• Different error scenarios based on 2 variables lead to same ambiguous error message
• "Misbehaving" is an ambiguous word itself: to the possible extent, it should be clear what has actually happened i.e. print out DNS protocol error.

[seankhliao]

Is this really a problem when it is never exposed to the client and only used to set the IsTemporary field in DNSError ?

ref: https://golang.org/src/net/dnsclient_unix.go#L281

[synergiator]

in Docker client error messages, it seems like you can see it exposed:

Get "https://production.cloudflare.docker.com ... tcp: lookup production.cloudflare.docker.com 
on ...: server misbehaving