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Reply to topic   Topic: Using Apache as proxy server
Author
Xia Jiang



Joined: 20 Oct 2009
Posts: 4

PostPosted: Tue 20 Oct '09 0:23    Post subject: Using Apache as proxy server Reply with quote

What I need is to use apache as a proxy server:
Say we have two ssl requests https://www.domain1.com and https://www.domain2.com
If the request is from https://www.domain1.com, we want to route it to 192.168.0.1; if request is from https://www.domain2.com, route it to 192.168.0.2.

Question 1:
How to configure the apache such that it can handle ssl request? I used mod_proxy together with ProxyPass for regular http request and it works fine. Can reverse proxy also work for SSL request?

Question 2:
Can apache route traffice based on the hostName?
ProxyPass only works for a sub-path like http://localhost/domain1 and http://localhost/domain2. How to access hostName?
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 7355
Location: Germany, Next to Hamburg

PostPosted: Tue 20 Oct '09 10:38    Post subject: Reply with quote

For SSL connection you need to load mod_proxy_connect. The reverse isn't such different

Code:

NameVirtualHost *:443

<VirtualHost *:443>
ServerName www.domain1.com
ProxyPass / https://192.168.0.1/
ProxyPassReverse / https://192.168.0.1/
</VirtualHost>

<VirtualHost *:443>
ServerName www.domain2.com
ProxyPass / https://192.168.0.2/
ProxyPassReverse / https://192.168.0.2/
</VirtualHost>
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Xia Jiang



Joined: 20 Oct 2009
Posts: 4

PostPosted: Tue 20 Oct '09 18:42    Post subject: Reply with quote

Thanks for your reply. I think I've already have mod_proxy_connect loaded. Because when I do apachectl -l, mod_proxy_connect is already listed. and If I add "Load proxy_connect_module modules/mod_proxy_connect.so", it complains about "module proxy_connect_module is built-in and can't be loaded".

After I added those lines in between
<IfModule mod_proxy_connect.c> </IfModule>, I hit "https://www.domain1.com" I got "An error occurred during a connection to www.domain1.com. SSL received a record that exceeded the maximum permissible length."

Any idea?
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Xia Jiang



Joined: 20 Oct 2009
Posts: 4

PostPosted: Tue 20 Oct '09 19:12    Post subject: Reply with quote

Here I posted my conf file. Thanks.

Code:

ServerRoot "/usr/local/apache2"

Listen 443

DocumentRoot "/usr/local/apache2/htdocs"

<Directory />
    Options FollowSymLinks
    AllowOverride None
    Order deny,allow
    Deny from all
</Directory>

<Directory "/usr/local/apache2/htdocs">
   Options Indexes FollowSymLinks
   AllowOverride None
   Order allow,deny
   Allow from all
</Directory>

<IfModule alias_module>
  ScriptAlias /cgi-bin/ "/usr/local/apache2/cgi-bin/"

</IfModule>
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
<IfModule mod_proxy_connect.c>
NameVirtualHost *:443

<VirtualHost *:443>
ServerName www.domain1.com
ProxyPass / https://10.253.189.239:8081/
ProxyPassReverse / https://10.253.189.239:8081/
</VirtualHost>

<VirtualHost *:443>
ServerName www.domain2.com
ProxyPass / https://10.253.189.239:8082/
ProxyPassReverse / https://10.253.189.239:8082/
</VirtualHost>
</IfModule>



<Directory "/usr/local/apache2/cgi-bin">
    AllowOverride None
    Options None
    Order allow,deny
    Allow from all
</Directory>

DefaultType text/plain


<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>


Modnote: removed all not needed stuff


Last edited by Xia Jiang on Tue 20 Oct '09 23:52; edited 1 time in total
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 7355
Location: Germany, Next to Hamburg

PostPosted: Wed 21 Oct '09 11:23    Post subject: Reply with quote

Quote:

SSL received a record that exceeded the maximum permissible length."


You get that error because that address does not exist - either as an https or http address / or apache can't connect to it.
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Xia Jiang



Joined: 20 Oct 2009
Posts: 4

PostPosted: Wed 21 Oct '09 18:53    Post subject: Reply with quote

I switched to something like this :
ProxyPass / http://www.google.com/
which works fine for regular http request. " that address does not exist - either as an https or http address / or apache can't connect to it." which address do you mean here? is that "/" or "http://www.google.com/"
I also tried "ProxyPassMatch ^(.*) http://www.google.com" Same error.
Thanks again for your reply!
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 7355
Location: Germany, Next to Hamburg

PostPosted: Wed 21 Oct '09 20:28    Post subject: Reply with quote

That means the sever can't connect to https://10.253.189.239:8081 in this case. What is in your error log about that?
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