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JellicleCat
Asked: 2021-02-02 12:58:34 +0800 CST

Apache forward proxy with SSL is not using HTTPS?

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I've configured a forward proxy in Apache 2.4, but my requests through it result in a 400:

curl: (56) Received HTTP code 400 from proxy after CONNECT

# Using the proxy results in a 400
https_proxy=https://my.example.net:3443/ curl 'https://testapi1.millimanintelliscript.com/Irix/IASRequestWS.asmx?WSDL'
# Skipping the proxy but running the command from my.example.net results in a 200
curl 'https://testapi1.millimanintelliscript.com/Irix/IASRequestWS.asmx?WSDL'

I wonder if the proxy is not using SSL because when I use curl -v, the output includes the following line, which mentions HTTP instead of HTTPS:

* Establish HTTP proxy tunnel to testapi1.millimanintelliscript.com:443

What could the problem be? This is my proxy config at my.example.net:

Listen 3443

<VirtualHost *:3443>
    ServerName my.example.net

    SSLEngine on
    SSLProxyEngine on
    ProxyRequests on
    ProxyVia off

    SSLEngine on
    SSLProtocol all -SSLv2 -SSLv3
    SSLCertificateFile /etc/letsencrypt/live/my.example.net/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/my.example.net/privkey.pem
    SSLCertificateChainFile /etc/letsencrypt/live/my.example.net/chain.pem
</VirtualHost>
proxy https apache-2.4

0 Answers