Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

net: Dial DNS lookups fail on Android #41373

Closed
vinhjaxt opened this issue Sep 14, 2020 · 1 comment
Closed

net: Dial DNS lookups fail on Android #41373

vinhjaxt opened this issue Sep 14, 2020 · 1 comment

Comments

@vinhjaxt
Copy link

@vinhjaxt vinhjaxt commented Sep 14, 2020

What version of Go are you using (go version)?

$ go version
go version go1.15.2 linux/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/user/.cache/go-build"
GOENV="/home/user/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/user/data/go-vendor/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/user/data/go-vendor/"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/user/data/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/user/data/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build116565155=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Compile and run this file:

package main

import (
	"log"
	"net"
)

func main() {
	_, err := net.Dial("tcp", "echo.opera.com:80")
	log.Println(err)
}

GOOS=linux GOARCH=arm64 go build

What did you expect to see?

nil

What did you see instead?

dial tcp: lookup echo.opera.com on [::1]:53: read udp [::1]:55154->[::1]:53: read: connection refused

The root cause:

File ./go/src/net/dnsconfig_unix.go
Line: 19

var (
	defaultNS   = []string{"127.0.0.1:53", "[::1]:53"}
	getHostname = os.Hostname // variable for testing
)
@toothrot toothrot changed the title net.Dial fail on android net: net.Dial dns requests fail on Android Sep 15, 2020
@toothrot toothrot changed the title net: net.Dial dns requests fail on Android net: Dial dns requests fail on Android Sep 15, 2020
@toothrot toothrot changed the title net: Dial dns requests fail on Android net: Dial DNS lookups fail on Android Sep 15, 2020
@toothrot
Copy link
Contributor

@toothrot toothrot commented Sep 15, 2020

This would appear to be related to #10714 and is a duplicate of #8877. Please discuss there.

@toothrot toothrot closed this Sep 15, 2020
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Linked pull requests

Successfully merging a pull request may close this issue.

None yet
2 participants
You can’t perform that action at this time.