Hi David,
2017-08-29 17:41 GMT+02:00 David Mugnai <d...@gnx.it>:
> Hi,
>
> I'm trying to configure a virtual host that, based on the host name,
> forwards the request on a backend server listening on an unix socket.
>
> My apache version is 2.4.18 as shipped by Ubuntu 16.04
>
> The configuration I've tried so far is:
>
> <VirtualHost *:80>
> ServerAdmin webmaster@localhost
> DocumentRoot /var/www/html
> LogLevel trace2
>
> UseCanonicalName Off
>
> RewriteEngine On
> RewriteCond %{HTTP_HOST} ^(.+)\.example.com
> RewriteRule "(.*)" "unix:/home/user/%1/server.sock|http://127.0.0.1$1
> [P,NE]
>
> ErrorLog ${APACHE_LOG_DIR}/error.log
> CustomLog ${APACHE_LOG_DIR}/access.log combined
> </VirtualHost>
>
> The rewrite module works as expected (in the log file I can see the full
> path to the unix socket), but trying to access the web server results in
> a "400 Bad Request" *without* the involvment of the backend server.
>
> I made a test with ProxyPass directive, and it works, but obviously is
> not what I want:
>
> <VirtualHost *:80>
> ServerAdmin webmaster@localhost
> DocumentRoot /var/www/html
> LogLevel trace2
>
> UseCanonicalName Off
>
> ProxyPass / unix:/home/user/subdomain1/server.sock|
> http://127.0.0.1/
> ProxyPassReverse / unix:/home/user/subdomain1/server.sock|
> http://127.0.0.1/
>
> ErrorLog ${APACHE_LOG_DIR}/error.log
> CustomLog ${APACHE_LOG_DIR}/access.log combined
> </VirtualHost>
>
> How can I fix it?
>
Didn't have much time to try this use case manually but I have a couple of
suggestions:
1) Do you find any log in the error_log that could give us some clue about
the 400 returned? (maybe increasing the LogLevel to debug or trace)
2) Have you tried
https://httpd.apache.org/docs/2.4/mod/mod_proxy.html#proxypassmatch ?
Luca
