RE: Proxy HTTPS tunneling (Apache Users)

Yes we got the client to send all the traffic to the proxy but the proxy is not forwarding that to the backend server. It is trying serve up a page from the Apache proxy. Basically what we are trying to do is to allow HTTPS connection from clients on the internet to a backend server through the Apache proxy. Is this possible and if so what changes do we need to make to get it working.

Nagu Sittampalam | Security Team Leader , IT Solutions Division | Southampton Strategic Services Partnership | Landline: 02380 833012 | Fax: 02380 832973 | e-mail Nagu.Sittampalam@xxxxxxxxxxxxxxxxxx | e-mail Nagu.Sittampalam@xxxxxxxxxxxx | post Capita ITS, 1st Floor, One Guildhall Square, Above Bar, Southampton, SO14 7FP
This email and any files transmitted with it are confidential, and may be subject to legal privilege, and are intended solely for the use of the individual or entity to whom they are addressed.
If you have received this email in error or think you may have done so, you may not peruse, use, disseminate, distribute or copy this message. Please notify the sender immediately and delete the original e-mail from your system.

From: Yehuda Katz [mailto:yehuda@xxxxxxxxxx]
Sent: 11 February 2014 16:36
To: users@xxxxxxxxxxxxxxxx
Subject: Re: Proxy HTTPS tunneling

In order to use forward proxy, your client must be configured for it - in which case your client will pass ALL of its traffic through the proxy.

Have you done that?

If that is not what you want, then what you are trying to do is not possible with Apache.

- Y

On Tue, Feb 11, 2014 at 11:29 AM, Sittampalam, Nagu <Nagu.Sittampalam@xxxxxxxxxxxxxxxxxx> wrote:

It is forward proxy we are trying to setup now because reverse proxy does not work for our backend application which is on IIS and required client certificate information to be passed to the backend. Can you see why the forward proxy configuration is not working?

From: Yehuda Katz [mailto:yehuda@xxxxxxxxxx]
Sent: 11 February 2014 16:25
To: users@xxxxxxxxxxxxxxxx
Subject: Re: Proxy HTTPS tunneling

Are you trying to set up a Forward Proxy or a Reverse Proxy (explanation: http://www.jscape.com/blog/bid/87783/Forward-Proxy-vs-Reverse-Proxy)?

Your configuration looks like a forward proxy but your email implies that you really want a reverse proxy.

See this part of the HTTPD manual for more about reverse proxy setup: http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#forwardreverse

A reverse proxy is activated using the ProxyPass directive or the [P] flag to the RewriteRule directive. It is not necessary to turn ProxyRequests on in order to configure a reverse proxy.

- Y

On Tue, Feb 11, 2014 at 7:51 AM, Sittampalam, Nagu <Nagu.Sittampalam@xxxxxxxxxxxxxxxxxx> wrote:

Hello

WE are trying to setup HTTPS tunnelling to a backend server through Apache proxy but we are finding the client connect but Apache does not send through the traffic the backend server.

The config we have on our Apache proxy virtual host is

DocumentRoot "/usr/local/apache2221/htdocs/ibcm/"

ServerName test.testdom.local

ErrorLog logs/ibcm

ServerAdmin webmaster@testdom.local

ProxyRequests On

AllowConnect 443

SSLEngine on

SSLHonorCipherOrder On

SSLProtocol -ALL +SSLv3 +TLSv1

SSLCipherSuite ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM

SSLCertificateFile "/etc/ssl/crt/ibcm.crt"

SSLCertificateKeyFile "/etc/ssl/crt/testdom.key"

SSLCertificateChainFile "/etc/ssl/crt/CA-DOM.crt"

Order deny,allow

Deny from all

</proxy>

Order deny,allow

Allow from all

</ProxyMatch>

</VirtualHost>

Anybody know what we are not doing correctly. Also we found Apache would not start without us putting in the root certificate. Thought it would not need any certificate for tunnelling so wonder if we have missed something.