Topic: Apache proxypass and webrick redirect

[harpenden_baz]

Hi guys,
I have an Apache 2 server running on CentOS as well as webrick running a rails app on port :3000.
I'm trying to get Apache to redirect all traffic to port :80 to the rails app. There are articles all over the web on how to do this using proxypass to forward all requests to that port. So I have this in my httpd.conf:

<VirtualHost *:80>
ServerName exampledomain.co.uk
ServerAlias www.exampledomain.co.uk
ProxyPass / http://localhost:3000/
ProxyPassReverse / http://localhost:3000/
</VirtualHost>

This doesn't seem to work at all, I just get a
I am loading the proxy module further up my conf file. Can anyone help? am I missing something?
Thanks
Barry

[James Blond]

do you loaf mod_proxy.so and mod_proxy_http.so ?

anythin in the error log?

[harpenden_baz]

Hey James,
Yes I'm loading both of those modules.
I have this setting just before my virtual host config:

ProxyRequests Off
ProxyPreserveHost On
ProxyTimeout 1000
TimeOut 1000

Not too sure what they actually do?????

[James Blond]

[harpenden_baz]

There's no error now other than a 404!
And no error is the logs.
The redirect just doesn't happen?
Is there another way to do this with mod_redirect or something?
Thanks
Barry

[James Blond]

Hm, a 404 doesn't seem that bad.

a) make sure the DNS from exampledomain.co.uk points to that apache. In worst case just do a entry in the hosts file and see if you can see than anything.

b) you can open localhost:3000/ in your browser where apache in on?

c) You configure the directoryIndex correctly so that it opens the defualt file from the backend server?

d) it is recommend to define an access log and error log for this vhost so that you can see what is going on. (You can disable it later again)

[harpenden_baz]

Thanks for your help James:

a) make sure the DNS from exampledomain.co.uk points to that apache. In worst case just do a entry in the hosts file and see if you can see than anything.

>> I have done this and all looks good

b) you can open localhost:3000/ in your browser where apache in on?

>> Yes I can view the RoR site on localhost:3000 and on 0.0.0.0:3000

c) You configure the directoryIndex correctly so that it opens the defualt file from the backend server?

>> Can you explain this one a bit more?

d) it is recommend to define an access log and error log for this vhost so that you can see what is going on. (You can disable it later again)

>> The logs are all clean no errors other than a 404.

Further to this I seem to be able to redirect traffic out to various websites but not internally to port 3000? So if I do:


ProxyPass / http://www.google.com/
ProxyPassReverse / http://www.google.com/

It works! Does this help?

Many Thanks
Barry

[James Blond]

[harpenden_baz]

OK now I get this in the error log:

[Tue Oct 09 11:32:17 2012] [error] proxy: HTTP: disabled connection for (127.0.0.1)
[Tue Oct 09 11:34:07 2012] [error] (13)Permission denied: proxy: HTTP: attempt to connect to 127.0.0.1:3000 (127.0.0.1) failed
[Tue Oct 09 11:34:07 2012] [error] ap_proxy_connect_backend disabling worker for (127.0.0.1)

Any ideas?
Thanks
Baz

[James Blond]

[harpenden_baz]

That worked! Thanks I would never have figured that one out alone!