About go get timeout problem

The following is an introduction to go get timeout from the golang tutorial column, I hope it will be helpful to friends in need!

• Consider it a proxy problem

Set the first proxy
Proxy address

go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.io,direct

# 设置不走 proxy 的私有仓库，多个用逗号相隔（可选）
go env -w GOPRIVATE=*.corp.example.com

# 设置不走 proxy 的私有组织（可选）
go env -w GOPRIVATE=example.com/org_name

No The download was successful, so using the second

proxy address

$ go env -w GO111MODULE=on
$ go env -w GOPROXY=https://goproxy.cn,direct

was useless. Read the error message carefully!

go get gorm.io/gorm: gorm.io/gorm@v1.20.12: verifying module: gorm.io/gorm@v1.20.12: Get "https://sum.golang.org/lookup/gorm.io/gorm@v1.20.12": dial tcp 216.58.200.49:443: co
nnectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has
failed to respond.

It turns out that because Go 1.13 sets the default GOSUMDB=sum.golang.org, this website is blocked. It is used to verify the validity of the package. It can be closed with the following command:

go env -w GOSUMDB=off

You can set

GOSUMDB="sum.golang.google.cn"

, which is a sum verification service specially provided for China.

goenv-w GOSUMDB="sum.golang.google.cn

-w flag requires one or more parameters of the form NAME=VALUE and overrides the default settings

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