The above call give me
dial tcp 192.168.1.100:3000: connect: host is down.
I can successfully ping the endpoint. I wonder what will be the cause of this error. What will be the possible causes of
host is down?
Let me provide more details. The endpoint I am dialing to is running mysql server. And I can successfully connect to it with command line. The endpoint is host in a NAS.
Further investigation, I believe the error message is from https://github.com/golang/go/blob/60e3ebb9cba900f7b2f559b472726cee47e823c0/src/net/fd_unix.go#L94