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配置 HTTPS 正向代理时出错(AH02268:下游服务器需要客户端证书,但未配置)

[英]Error configuring a HTTPS forward proxy (AH02268: downstream server wanted client certificate but none are configured)

我想我一起犯了几个错误,但我被困住了,我要疯了。 而且我猜这个问题已经提出了,但是,即使搜索了很多,我也找不到这个确切的案例发布在任何地方。

我正在做的任务是通过代理调用远程 HTTPS 服务器:

wget http://localhost/remote?wsdl

指着

https://someserver.com/service?wsdl

在图表中:

       (http)            (https)
client ------> localhost -------> someserver.com

使用出色的 Apache web 服务器(真的,不是开玩笑)。

证书交换发生在代理和远程服务器之间,我已经使用代理板载的私钥安装了客户端证书。 客户在.p12文件中给了我证书。

尝试使用SoapUI和相同的证书测试所需的 web 服务,我得到了预期的行为(一切正常)。 但是现在我必须从中间件调用服务。 为此,我正在使用 Apache 配置 SSL 代理。

我尝试以两种方式做到这一点,但均不成功:

1)在两个文件中分别定义一个proxy和定义SSL参数:

/etc/apache2/conf.d/mods-available/ssl.conf
/etc/apache2/conf.d/mods-available/proxy.conf

第一个文件包含:

# /etc/apache2/conf.d/mods-available/ssl.conf
SSLPassPhraseDialog  exec:/usr/local/etc/apache2/pwf.sh # to avoid manuallly entering passphrase
SSLSessionCache         shmcb:/var/cache/mod_ssl/scache(512000)
SSLSessionCacheTimeout  300

SSLRandomSeed startup file:/dev/urandom  256
SSLRandomSeed connect builtin

ErrorLog /var/log/ssl_error_log
TransferLog /var/log/ssl_access_log
LogLevel warn

SSLEngine off
SSLProtocol all -SSLv2

SSLCipherSuite DEFAULT:!EXP:!SSLv2:!DES:!IDEA:!SEED:+3DES
SSLCertificateFile /usr/local/etc/apache2/ssl.crt/certificate.pem
SSLCertificateKeyFile /usr/local/etc/apache2/ssl.key/server.key
SSLCertificateChainFile /usr/local/etc/apache2/ssl.crt/chain.pem

CustomLog /var/log/ssl_request_log "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"

第二个文件包含:

# /etc/apache/conf.d/mods-available/proxy.conf
SetEnv proxy-sendcl 1

SSLProxyEngine On

ProxyPass /remote https://someserver.com/service
ProxyPassReverse /remote https://someserver.com/service

我通过以下方式启用了这些模块:

sudo a2enmod proxy & a2enmod ssl

2) 定义虚拟主机

/etc/apache2/conf.d/sites-available/remote.conf 

此方法与前一种方法互斥:

# 
# remote.local
<VirtualHost SOMEIP:443>

    ProxyRequests on
    DocumentRoot /var/www/html/remote

    ServerName someserver.com

    SSLEngine on
    SSLProxyEngine on
    SSLCertificateFile /usr/local/etc/apache2/ssl.crt/certificate.pem
    SSLCertificateKeyFile /usr/local/etc/apache2/ssl.key/server.key
    SSLCertificateChainFile /usr/local/etc/apache2/ssl.crt/chain.pem
    ProxyPreserveHost On

    ErrorLog ${APACHE_LOG_DIR}/error_remote.log
    CustomLog ${APACHE_LOG_DIR}/access_remote.log combined

    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel info

    <Location /remote>
        ProxyPass https://someserver.com/service
        ProxyPassReverse https://someserver.com/service
        Order allow,deny
        Allow from all
    </Location>

</VirtualHost>

我启用了这个:

sudo a2ensite remote

在我尝试的两种方法中的任何一种中,当我尝试访问本地 URL 时都会收到这些(相同的)错误:

[Thu Jun 11 18:39:15.724705 2020] [ssl:warn] [pid 30578] AH02268: Proxy client certificate callback: (localhost:80) downstream server wanted client certificate but none are configured
[Thu Jun 11 18:39:15.794381 2020] [proxy_http:error] [pid 30578] (20014)Internal error (specific information not available): [client ::1:49118] AH01102: error reading status line from remote server someserver.com:443
[Thu Jun 11 18:39:15.794585 2020] [proxy:error] [pid 30578] [client ::1:49118] AH00898: Error reading from remote server returned by /remote/

证书链没问题:

openssl crl2pkcs7 -nocrl -certfile chain.pem | openssl pkcs7 -print_certs -noout

向我显示 CA、中间和服务器证书的所有证书颁发者和主题:

openssl verify -CAfile ca.pem -untrusted chain.pem certificate.pem 

certificate.pem: OK

任何建议将不胜感激,在此先感谢。

我错过了为反向代理配置证书,即部分

SSLProxyMachineCertificateFile

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