My Tomcat ist proxied through Apache as follows:
ProxyRequests Off
ProxyPreserveHost On
ProxyPass /tomcat/ http://127.0.0.1:8080/
ProxyPassReverse /tomcat/ http://127.0.0.1:8080/
Calling http://example.com/tomcat loads my Tomcat server (as expected).
Now I putted the openrdf-sesame.war and openrdf-workbench.war into my webapps folder. If I open
http://example.com/tomcat/openrdf-workbench it fowards to http://example.com/openrdf-workbench
http://example.com/tomcat/openrdf-sesame/ it forwards to https://example.com/openrdf-sesame/overview.view
During the forwarding, the path-part /tomcat is lost.
How can I configure a base-path (e.g. /tomcat) in OpenRDF Sesame, so the forwardning does not fail?
The simplest way to fix this is just to include a Sesame-specific reverse proxy to your Apache config (incidentally I'd use ajp proxying instead of http, if you can - it's more efficient):
ProxyPass /openrdf-sesame ajp://127.0.0.1:8009/openrdf-sesame
ProxyPassReverse /openrdf-sesame ajp://127.0.0.1:8009/openrdf-sesame
And for the Workbench:
ProxyPass /openrdf-workbench ajp://127.0.0.1:8009/openrdf-workbench
ProxyPassReverse /openrdf-workbench ajp://127.0.0.1:8009/openrdf-workbench
Related
I had Apache configuration which was using a ProxyPass/ProxyPassReverse with the following example syntax:
ProxyPass /myprog http://localhost:8080/myprog
ProxyPassReverse /myprog http://localhost:8080/myprog
Then, I moved Apache from port 80, to 8880, and put another web server on port 80. I can access some things correctly now on port 8880 - those files which are hosted directly on Apache. But my proxy pass (to Tomcat) now fails when I try to access it at: http://some.domain:8880/myprog.
How do I correct the ProxyPass/Reseverse to account for the port change? (I assumed, perhaps natively, the port spec was implicit...).
You need to put your configuration on a VirtualHost tag.
<VirtualHost *:8880>
ProxyPreserveHost On
ProxyRequests Off
ProxyPass /myprog http://localhost:8080/myprog
ProxyPassReverse /myprog http://localhost:8080/myprog
</VirtualHost>
I am running a vue js application as a v-host (app.test.com) on
http://app.test.com
The backend is a go application (which implements a webserver on its own) and is running on
http://localhost:8000
Is it possible to configure apache to redirect/proxy all request that go to http://app.test.com/api to http://localhost:8000 ?
Let's say i call http://app.test.com/api/endpoint1 from the vue application i'd like it to be proxied to http://localhost:8000/api/endpoint1.
I normaly have a dedicated dns for the api and using this config then in the v-host:
ProxyRequests Off
ProxyPreserveHost On
ProxyPass / http://0.0.0.0:8000/
ProxyPassReverse / http://0.0.0.0:8000/
which works good.
But i can't figure out how to use this in a allready defined v-host.
Any hints/examples?
Many thanks
Sorry for this question. Managed to run this .. forgot to add the Proxy * directive to the config...
ProxyRequests Off
ProxyPreserveHost On
<Proxy *>
Order deny,allow
Allow from all
</Proxy>
ProxyPass /api/ http://0.0.0.0:8000/api/
ProxyPassReverse /api/ http://0.0.0.0:8000/api/
does it all, if someone Needs this
Recently, I was in need of using both Apache and Tomcat together in which Apache was to be used as the reverse proxy to forward requests to port 80 to localhost:8080 which I did like this:
<VirtualHost *:*>
ProxyPass / http://localhost:8080/app/
</VirtualHost>
And it works perfectly well.
Now, what I need to do is: I have Tomcat listening and serving on another port 8082. I need to be able to access it using www.mydomain.com:8082. I tried:
<VirtualHost *:8082>
ProxyPass / http://localhost:8082/app/
</VirtualHost>
But no luck. And I can't listen on 8082 because Tomcat is doing that.
What you have above is a (failed) attempt to map the / URL space into two different places. That's never going to work.
When proxying to Tomcat, it's never a good idea to rewrite URL paths (e.g. / -> /app/ because Tomcat is going to get all kinds of confused. It's much better to map individual applications:
<VirtualHost *:*>
ProxyPass /app1/ http://localhost:8080/app1/
ProxyPass /app2/ http://localhost:8080/app2/
ProxyPass /app3/ http://localhost:8082/app3/
ProxyPass /app4/ http://localhost:8082/app4/
# If you need a fall-back application for `/`, just map it last.
ProxyPass / http://localhost:8080/
</VirtualHost>
Note that the last line up there is mapping / to Tomcat's ROOT context (mounted on /'). Don't do this any other way, or you'll spend years trying to make everything work when you could have just done it the recommended way.
I have 1 apache server and two tomcat servers with two different applications. I want to use the apache as a proxy so that the user can access the application from the same url using different paths.
e.g.:
localhost/app1 --> localhost:8080/app1
localhost/app2 --> localhost:8181/app2
I tried all 3 mod proxy of apache (mod_jk, mod_proxy_http and mod_proxy_ajp) but the first application is working, whilst the second is not accessible.
This is the apache configuration I'm using:
ProxyPassMatch ^(/.*\.gif)$ !
ProxyPassMatch ^(/.*\.css)$ !
ProxyPassMatch ^(/.*\.png)$ !
ProxyPassMatch ^(/.*\.js)$ !
ProxyPassMatch ^(/.*\.jpeg)$ !
ProxyPassMatch ^(/.*\.jpg)$ !
ProxyRequests Off
ProxyPass /app1 ajp://localhost:8009/
ProxyPassReverse /app1 ajp://localhost:8009/
ProxyPass /app2 ajp://localhost:8909/
ProxyPassReverse /app2 ajp://localhost:8909/
With the above, I manage to view the tomcat root application using localhost/app1, but I
get "Service Temporarily Unavailable" (apache error) when accessing app2.
I need to keep the tomcat servers separate because I need to restart one of the applications often and it is not an option to save both apps on the same tomcat.
Can someone point me out what I'm doing wrong?
Thank you all.
Using apache2 I want to set up an AJP proxy for a Tomcat server that maps an internal servlet URL to a completely different URL externally. Currently I am using the following configurations:
Apache2 configuration:
<IfModule mod_proxy.c>
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name ajp://192.168.1.30:8009/servlet_name
</IfModule>
Note that external_name and servlet_name are different.
Tomcat 6 configuration:
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
This however does not work. Apache seems to forward http requests to Tomcat.
However the URLs and redirects returned by Tomcat are still using the original servlet_name and Apache does not map them to external_name.
Is this possible at all with AJP? If not can it be done using a plain http proxy instead?
Mapping different names between Apache and Tomcat can be quite tricky and depends much on how the web application builds its urls for the response.
Basically your setup is correct, but if your application uses its own servlet_name for redirects and urls ProxyPassReverse won't map them.
If you need this kind of setup have a look at mod_proxy_html (Apache 3rd party module) which will parse and rewrite also the contents, not only the url and response headers as mod_proxy.
( A late answer, but I just ran into this problem myself. )
It appears that ProxyPassReverse using ajp: doesn't work because the headers returned from a redirect don't have an ajp: URL in Location:, they have a http: URL. ProxyPassReverse just causes a rewrite of matching headers, and
that string doesn't match what's being returned.
This should work (provided the Location: field uses that numerical address
and not a host name.)
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name http://192.168.1.30/servlet_name
( You can use 'curl -I' to inspect the redirect headers and debug. )
See this note, or a more involved solution here using mod_proxy_html
for rewriting the URLs in web pages as well.
Additionally to the answer from Steven D. Majewski there is one more problem. If the target application uses the request host name to create a redirect (302 Moved Temporarily), it won't work with multiple host names. One must create multiple configurations for every name, like this:
ProxyPassReverse /external_name http://server.com/servlet_name
ProxyPassReverse /external_name http://server.org/servlet_name
ProxyPassReverse /external_name http://server.co.uk/servlet_name
Actually the ProxyPreserveHost on must solve this issue and replace the HOST header in the incoming requests with the address or IP specified in ProxyPass. Unfortunately it seems to be the ProxyPreserveHost doesn't work with ajp connectors. The tomcat in my configuration still received the host name got from browser instead replacing it with 192.168.1.30. As result the browser based redirects still didn't work for every name.
Following configuration didn't work as well :-(
# NOT WORKING !!!
ProxyPassReverse /external_name http://%{HTTP_HOST}/servlet_name
The workaround was using http instead of ajp.
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name http://192.168.1.30/servlet_name
Did somebody investigate it deeply?
For me, this seemed to cause problems:
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name http://192.168.1.30/servlet_name
While this seemed to work:
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name ajp://192.168.1.30:8009/servlet_name
I don't know why but it just did.