Topic: Apache Reverse Proxy - Multimedia File Not Displaying

[ku1918]

Hi all,

I am trying to do reverse proxy for several web servers in my network.I have successfully configure the reverse proxy.However , when website with multimedia webpages are requested , the multimedia content is not displaying.What is the problem? What is is that I am missing in my config file.

<VirtualHost *:80>
ServerAdmin webmaster@dummy-host.example.com
#DocumentRoot /www/docs/dummy-host.example.com
ServerName dummy-host.example.com
ErrorLog logs/dummy-host.example.com-error_log
CustomLog logs/dummy-host.example.com-access_log common
ProxyRequests Off
ProxyPass /a http://a.com
ProxyPass /b http://192.168.1.4/b
ProxyPass /c http://192.168.1.5/c
ProxyPass /xxx http://x.x.x.x:8080/

ProxyPassReverse http://a.com /a
ProxyPassReverse http://192.168.1.4/b /b
ProxyPassReverse http://192.168.1.5/c /c
ProxyPassReverse http://x.x.x.x:8080 /xxx

</VirtualHost>

[James Blond]

The ProxyPassReverse configs are the wrong way arround. Change the local and the remote path.

[ku1918]

I reverse it already. Still the same problem. Multimedia (images) are not displaying.

[James Blond]

What is in your error log and or access log about it?

[admin]

Not displaying images on all back-ends ?

Do not know why you have (see bold);

ProxyPassReverse http://a.com /a
ProxyPassReverse http://192.168.1.4/b /b
ProxyPassReverse http://192.168.1.5/c /c
ProxyPassReverse http://x.x.x.x:8080 /xxx

I expect:

ProxyPassReverse http://a.com
ProxyPassReverse http://192.168.1.4/b
ProxyPassReverse http://192.168.1.5/c
ProxyPassReverse http://x.x.x.x:8080

[jraute]

Hello ku1918

may i make a suggestion?
i would try to separate the different sites via location entries.

[ku1918]

- [07/May/2014:14:16:27 +0800] "GET /js/cufon-myPro_regular.js HTTP/1.1" 404 1245
- - [07/May/2014:14:16:27 +0800] "GET /js/cufon-aller_regular.js HTTP/1.1" 404 1245
- - [07/May/2014:14:16:27 +0800] "GET /js/cufon-lSans_regular.js HTTP/1.1" 404 1245
- [07/May/2014:14:16:27 +0800] "GET /js/jquery.easing.1.3.js HTTP/1.1" 404 1245
- - [07/May/2014:14:16:27 +0800] "GET /js/jquery.scrollTo-min.js HTTP/1.1" 404 1245
- - [07/May/2014:14:16:27 +0800] "GET /js/jquery.corner.js HTTP/1.1" 404 1245
- - [07/May/2014:14:16:27 +0800] "GET /js/dragdealer.js HTTP/1.1" 404 1245
- - [07/May/2014:14:16:27 +0800] "GET /js/init.js HTTP/1.1" 404 1245

i get this kind of log in my access_log.404 means unable to get the content right?
- - [07/May/2014:14:16:27 +0800] "GET /js/form.js HTTP/1.1" 404 1245 - - [07/May/2014:14:16:28 +0800] "GET /images/aboutus/aboutus_titleSub.png HTTP/1.1" 404 1245

[jraute]

Have you tried separating the entries into locations?
Try that first!

[ku1918]

Already separate the locations.

[jraute]

Did you try to open a browser on the computer running the apache and to connect to the backend server? Did you get the content? If thats working the reverse proxy is really the problem - otherwise the problem is somewhere else.

[ku1918]

Yes. it is working on the server that have the apache httpd running on it.

When accessing from another computer , only the image link are broken.

I have 4 website running. 2 of them images has no problem.

2 of it having problem because i notice the webpages are redirecting.

For an example ,

www.abc.com --> www.abc.com/bcd.html

So , what i can do to fix the error. I have read about mod_rewrite and mod_proxy_html , am still try to solving it.

[jraute]

mod_proxy_html would be the right one.

[ku1918]

Can give me an example?

[Steffen]

See:

http://www.apachetutor.org/admin/reverseproxies

http://apache.webthing.com/mod_proxy_html/


http://httpd.apache.org/docs/2.4/mod/mod_proxy_html.html

[ku1918]

Hi,

1.1.1.1 - - [08/May/2014:10:19:00 +0800] "GET /digi/images_v3/footer/icon_share.png HTTP/1.1" 200 869 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36

1.1.1.1 - - [08/May/2014:10:18:24 +0800] "GET /images_v3/footer/icon_share.png HTTP/1.1" 404 1245 "http://192.168.117.110/digi/landing.do" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36"

Hi , as you can see the link that is highlight in red is working. The one is highlight in blue is not working.

When i request the webpage normally , it will request the blue link and it will cause 404 error as cannot find the path.

If i type directly the red link , the image was found.

So , how do i solve this?

[James Blond]

As Steffen pointed out you should use mod_proxy_html.

Another solution would be to use some Alias, but that is a more ugly solution.