http response error: 401 - invalid content type using client.RunWithString("ipconfig", "")

[NikunjPatel31]

I am getting http response error: 401 - invalid content type When I tried to run "ipconfig" using RunWithString( ) after creating client with NTLM as authentication.

Sometimes it gives proper output and sometimes it gives me error.

The server I am using has NTLM enabled.

Client NetworkDelayms = 5000 URLPrefix = wsman AllowUnencrypted = false Auth Basic = false Digest = true Kerberos = true Negotiate = true Certificate = true CredSSP = false DefaultPorts HTTP = 5985 HTTPS = 5986 TrustedHosts

AllowUnencrypted = false Auth Basic = false Kerberos = true Negotiate = true Certificate = false CredSSP = false CbtHardeningLevel = Relaxed DefaultPorts HTTP = 5985 HTTPS = 5986 IPv4Filter = IPv6Filter = EnableCompatibilityHttpListener = false EnableCompatibilityHttpsListener = false CertificateThumbprint

Above are my winrm configurations

`en, err := winrm.NewEncryption("ntlm")

if err != nil {

    fmt.Println("Error in NewEncryption: ", err.Error())

    return

}

params := winrm.Parameters{TransportDecorator: func() winrm.Transporter { return en }}

client, err := winrm.NewClientWithParameters(endpoint, username, password, &params)

if err != nil {

    fmt.Println("Error in creating new client: ", err.Error())

    return

}

shell, err := client.CreateShell()

defer func() {

    err := shell.Close()

    if err != nil {

        fmt.Println("Error in closing shell: ", err.Error())

        return
    }

}()

withString, s, i, err := client.RunWithString("ipconfig", "")
if err != nil {

    fmt.Println("Error in command: ", err.Error())

    return
}`

[CalypsoSys]

@NikunjPatel31 - I have updated code, my tests work properly