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x/crypto/ssh: panic: handshake failed: ssh: host key mismatch #21166

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dgrr opened this issue Jul 25, 2017 · 3 comments
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x/crypto/ssh: panic: handshake failed: ssh: host key mismatch #21166

dgrr opened this issue Jul 25, 2017 · 3 comments
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@dgrr
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dgrr commented Jul 25, 2017

Please answer these questions before submitting your issue. Thanks!

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

go version go1.8.3 linux/amd64

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

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/mester/.go"
GORACE=""
GOROOT="/usr/lib/go"
GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build052168145=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"
PKG_CONFIG="pkg-config"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"

What did you do?

I'm trying to connect to my server using ssh client created in Golang.
Here is the code: https://play.golang.org/p/0y6hzwg7Lz

What did you expect to see?

The terminal of my server

What did you see instead?

I see a panic lol
@ianlancetaylor ianlancetaylor changed the title panic: ssh: handshake failed: ssh: host key mismatch x/crypto/ssh: panic: handshake failed: ssh: host key mismatch Jul 25, 2017
@gopherbot gopherbot added this to the Unreleased milestone Jul 25, 2017
@ianlancetaylor
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Please show us the complete panic output.

@dgrr
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dgrr commented Jul 25, 2017

Solved. I create another function with the callback:
func check(hostname string, remote net.Addr, key ssh.PublicKey) error {
return nil
}

func HostKeyCallback(key ssh.PublicKey) ssh.HostKeyCallback {
return check
}

And it works.

@ianlancetaylor
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Closing.

@golang golang locked and limited conversation to collaborators Jul 25, 2018
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@ianlancetaylor @gopherbot @dgrr