转到-向Apache代理的ReverseProxy错误：x509：证书由未知授权机构签名

Question

i have some troubles with my own ReverseProxy i've written in Go. I want to connect my Golang-Webserver with my Apache Webserver. My Apache Webserver should be running on https and the Reverse-Proxy too. So i've written following code, but I always get the error: proxy error: x509: certificate signed by unknown authority. So must the apache uses the same certificate as the apache or what is the problem? Here some code snippets but I think its a problem with the certificates without ssl everything works fine :(

func (p *Proxy) directorApache(req *http.Request) {
    mainServer := fmt.Sprintf("%s:%d", Config.HostMain, Config.PortMain)
    req.URL.Scheme = "https"
    req.URL.Host = mainServer
}
func (p *Proxy) directorGo(req *http.Request) {
    goServer := fmt.Sprintf("%s:%d", Config.GoHost, Config.GoPort)
    req.URL.Scheme = "http"
    req.URL.Host = goServer
}


func (p *Proxy) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
    fmt.Println(req.URL.Path)
    if p.isGoRequest(req) {
        fmt.Println("GO")
        p.goProxy.ServeHTTP(rw, req)
        return
    }
    p.httpProxy.ServeHTTP(rw, req)
}
func main() {

    var configPath = flag.String("conf", "./configReverse.json", "Path to the Json config file.")

    flag.Parse()
    proxy := New(*configPath)

    cert, err := tls.LoadX509KeyPair(Config.PathCert, Config.PathPrivateKey)
    if err != nil {
        log.Fatalf("server: loadkeys: %s", err)
    }
    config := tls.Config{InsecureSkipVerify: true, Certificates: []tls.Certificate{cert}}

    listener, err := net.Listen("tcp",
    net.JoinHostPort(proxy.Host, strconv.Itoa(proxy.Port)))
    if err != nil {
        log.Fatalf("server: listen: %s", err)
    }
    log.Printf("server: listening on %s")
    proxy.listener = tls.NewListener(listener, &config)

    serverHTTPS := &http.Server{
        Handler:   proxy.mux,
        TLSConfig: &config,
    }

    if err := serverHTTPS.Serve(proxy.listener); err != nil {
        log.Fatal("SERVER ERROR:", err)
    }

   }

I tried a lot and generated several self-signed SSL-Certificates but nothing solved my problem. Hope somebody can help me.

greetings

David

Answer 1

If you're using a self-signed certificate in the backend server, you need to tell your proxy's http client to not verify the certificate.

You can override the default for the http package:

http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{InsecureSkipVerify: true}

Or create a new Transport specifically for your proxy:

httpProxy.Transport = &http.Transport{
    Proxy: http.ProxyFromEnvironment,
    Dial: (&net.Dialer{
        Timeout:   30 * time.Second,
        KeepAlive: 30 * time.Second,
    }).Dial,
    TLSHandshakeTimeout: 10 * time.Second,
    TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}