We have website e.g. http://www.acb.com which points to a hardware load-balancer which is suppose to load-balance two dedicated server. Each server is running apache as a frontend and uses mod_proxy to forward request to tomcat.
Some pages of our website require SSL like https://www.abc.com/login or https://www.abc.com/checkout
SSL is terminated at hardware load-balancer.
When I configured mod_pagespeed it compressed, minimized and merged css file and rewrote them with an absolute url http://www.abc.com/css/merged.pagespeedxxx.css instead of relative url /css/merged.pagespeedxxx.css.
It works fine for non ssl pages but when I navigate to an ssl page such as https://www.abc.com/login all the css and js files are blocked by browser like chrome as their absolute url is not using ssl.
How can I resolve this issue ?
Check for https string in this documentation and this one.
You should show us in your question your current ModPagespeedMapOriginDomain && ModPagespeedDomain settings.
From what I understand from these lines:
The origin_specified_in_html can specify https but the origin_to_fetch_from can only specify http, e.g.
ModPagespeedMapOriginDomain http://localhost https://www.example.com
This directive lets the server accept https requests for www.example.com without requiring a SSL certificate to fetch resources - in fact, this is the only way mod_pagespeed can service https requests as currently it cannot use https to fetch resources. For example, given the above mapping, and assuming Apache is configured for https support, mod_pagespeed will fetch and optimize resources accessed using https://www.example.com, fetching the resources from http://localhost, which can be the same Apache process or a different server process.
And these ones:
mod_pagespeed offers limited support for sites that serve content through https. There are two mechanisms through which mod_pagespeed can be configured to serve https requests:
Use ModPagespeedMapOriginDomain to map the https domain to an http domain.
Use ModPagespeedLoadFromFile to map a locally available directory to the https domain.
The solution would be something like that (or the one with ModPagespeedLoadFromFile)
ModPagespeedMapOriginDomain http://localhost https://www.example.com
BUT, the real problem for you is that apache does not directly receive the HTTPS requests as the hardware load balancer handle it on his own. So the mod-pagespeed output filter does not even know it was requested for an SSL domain. And when it modify the HTML content, applying domain rewrite maybe, it cannot handle the https case.
So... one solution (untested) would be using another virtualhost on the apache server, still HTTP if you want, dedicated to https handling. All https related urls (/login,/checkout,...) would then be redirected to this specific domain name by the hardware load balancer. Let's say http://secure.acb.com. This name is only in use between the load balancer and front apaches (and quite certainly apache should restrict access to this VH to the load balancer only).
Then in these http://secure.acb.com virtualhosts mod_pagespeed would be configured to externally rewrite domains to https://www.example.com. Something like:
ModPagespeedMapOriginDomain http://secure.example.com https://www.example.com
Finally the end user request is https://www.example.com/login, the load balancer manages HTTPS, talk to apache with http://secure.example.com, and page results contains only references to https://www.example.com/* assets. Now when theses assets are requested with an https domain request you still have the problem of serving theses assets. So the hardware load balancer should allow all theses assets url in the https domain and send them to the http://secure.abc.com virtualhosts (or any other static VH).
This sounds like you configured the rewritten URL as http://www.abc.com/css/merged.pagespeedxxx.css yourself - therefor: Try to use a protocol-relative URL, e.g. remove http: and just state //www.abc.com/css/merged.pagespeedxxx.css - this will use the same protocol as the embedding page was requested in.
One of the well standardized but relatively unknown features of URLs
Related
I have the following question that I do not know how to solve it in the most efficient way.
I have two servers, one with Apache where I have a Wordpress instance responding for port 80, and on another server I have a Wildfly with another application listening on port 8080. The Wordpress that I have configured on the Apache server, responds to the URL http://www.somedomain.com What I'm not so clear about is how to do when a request arrives at http://www.somedomain.com/yyyy and redirects me to the Wildfly server where an application is responding to the URL : 8080 / app
How could I do it in the most effective way? Using the rewrite module in the .htaccess file or using the Apache proxy module and configuring it in the Apache virtual host? How would I have to do it?
Thank you very much in advance.
You're mixing a few things that are not related to each other. First of all, a redirect is something different than a proxy. Redirecting means asking the client (browser) to look at another URL. A proxy, on the other hand, retrieves the content of the other URL itself and passes it to the client. Using a proxy, the other URL remains invisible to the client.
Second, mod_rewrite is not limited to htaccess configuration. In fact it's better to configure mod_rewrite in the virtual host configuration, just as you suggested with the proxy configuration.
The htaccess is simply for users who are not allowed to mess with the server configuration itself. Configuration in the htaccess can be limited by the admin for security purposes at the cost of slowing down the server.
That said, if you are looking to map your wildfly server paths into your main server's paths, you might want to use something like this inside your main server's virtual host block:
<Location "/yyyy">
ProxyPass "http://wildfly:8080/app"
</Location>
See http://httpd.apache.org/docs/current/mod/mod_proxy.html#proxypass for detailed explanations.
Currently we are using the default wirecloud template. But sinde we enabled SSL and redirect every request to the ssl port I would love to change the urls of static ressources to start with https to avoid mixed content warnings.
Is there a simple way to change the urls to always start wit hhttps instead of http?
That's done automatically, except if WireCloud is behind a proxy (so requests comes using HTTP instead of HTTPS). In those cases you can force WireCloud to use https links by adding this line into the settings.py file:
FORCE_PROTO = "https"
See this link for more info.
Apache 2.2.15 on RHELS 6.1
Using mod_pagespeed on a server behind https (implemented by the network's Reverse Proxy).
All html urls are written as "//server.example.com/path/to/file.css" (so, without the protocol specified).
Problem : using the default configuration, pagespeed rewrites the urls as "http://server.example.com/path/to/file.css"
I'm trying to figure out how to have it rewrite the urls as https (or leave it unspecified as //).
After reading the documentation, I tried using ModPagespeedMapOriginDomain like this
ModPagespeedMapOriginDomain http://localhost https://server.example.com
Also tried
ModPagespeedMapOriginDomain http://localhost //server.example.com
ModPagespeedMapOriginDomain localhost server.example.com
... To no avail. Urls keep being rewritten with "http://".
Question: how can I have pagespeed use https instead of http in its urls?
Full pagespeed config here, if needed
It turns out mod_pagespeed does not work with "protocol-relative" urls.
Still, the issue is bypassed if you enable trim_urls
ModPagespeedEnableFilters trim_urls
Be mindful of the potential risks (depending on your javascript codebase, ajax calls could break or produce unexpected html).
Adding this to your configuration might work:
ModPagespeedRespectXForwardedProto on
That works, if your reverse proxy forwards the X-Forwarded-Proto header in its requests.
That request header tells PageSpeed what the original protocol was that was used for the request at the loadbalancer, and thereby hands it all it needs to know to correctly rewrite urls.
I'm a bit out of my depth here and nothing I have found quite addresses my problem. Si any and all suggestions are most welcome.
I've got tomcat6 running on CentOS 6.5 hidden behind an apache server (v2.2.15) and I am using Apache's mod_proxy to expose the tomcat webapps, which are running on port 8080. The tomcat hosts one production application and several development applications. On the apache side, both a Drupal site and the aforementioned tomcat production application are on the same domain and, thanks to rewrite rules, all requests to this domain are changed to https. The development sites are reached via subdomains and do not get re-written as https requests.
For the most part, this arrangement works fine. But parts of the tomcat apps are AJAX (calling a Java Struts 1.2 backend). Most of those requests are handled OK. But a few AJAX requests result in redirects (i.e., forward.setRedirect(true)) and that redirect is http (I guess because the container itself is not secure). As a result, I run into cross site scripting issues. I imagine I can use CORS headers to avoid the problem. But that seems like a hack. Is there a relatively painless way I can use to have tomcat send redirects back as https without making tomcat handle ssl directly?
Cris
You could configure the RemoteIpValve in Tomcat:
Another feature of this valve is to replace the apparent scheme
(http/https) and server port with the scheme presented by a proxy or a
load balancer via a request header (e.g. "X-Forwarded-Proto").
To configure Apache to forward the original protocol in the X-Forwarded-Proto header, add a RequestHeader directive in your Apache config, e.g.:
<VirtualHost *:443>
RequestHeader set X-Forwarded-Proto "https"
...
Note that in Tomcat 7, there is also a RemoteIpFilter.
You don't need to do anything special. It already works. Make sure you set the "redirectPort" in server.xml to Apache's HTTPS port, usually 443, and add the following to your <security-constraint> sections for resources you want secured by HTTPS:
<user-data-constraint>
<description>HTTPS</description>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
Late to the game here but others may find this-- we had a similar setup and issue where everything worked fine until the application started using ajax posts which did redirects for the response. The fix was to use mod_header in apache to rewrite redirects using "Header edit Location"
http://httpd.apache.org/docs/current/mod/mod_headers.html
Header edit Location ^http://www.example.com/ https://www.example.com/
This went unnoticed prior to the ajax redirects because the browser has no problem doing page level redirects to http (which apache would then redirect back to https). But the ajax cross-site prevention halts at the initial http missing out on that would then be redirected to https by a subsequent request.
We currently have Apache/ WAS setup and I want the Apache to handle the static content and it is working as expected.
My question:
We have always used www.xxx.com before and WAS used to handle the page, now we want to WEB server to handle the page and route www.xxx.com to www.xxx.com/index.jsp without the user knowing about it.
We want to user to type in www.xxx.xom in the url and get to the WAS through Apache.
If I get you correctly, you want a reverse proxy for dynamic content of your website. Apache has the mod_proxy that allows you to do that for selective URLs. The ProxyPass directive allows you to specify what URLs are mapped to which HTTP servers. HTTP headers are modified accordingly that the external information can reach the WAS that is hidden behind your Apache. IIRC, WAS can be configured to be aware of the reverse proxy.
Reverse proxy based on a prefix:
ProxyPass /mirror/foo/ http://backend.example.com/
Reverse proxy based on a regex:
ProxyPassMatch ^(/.*\.gif)$ http://backend.example.com$1