We have reverse proxy server which use rewrite rule to redirect one address to another.
When redirection is working, we get back an answer from that site (google) as a txt page.
Now, we wish to Substitute few words in that page and direct it to the source server that asked for it.
Our configuration looks like this:
ProxyRequests Off
RewriteEngine on
RewriteRule ^/books\.google\.com(.*) https://books.google.com/$1
Substitute "s/thumbnail_url/test/ni"
We do get the page back from google, but Substitute of words in the page is not working.
Hoping someone can answer it.
Thanks
Found the way to do so, by adding the following lines:
SSLProxyEngine On
RequestHeader set Front-End-Https "On"
Substitute "s/thumbnail_url/test/ni" [P]
Cause [P] will made the all query to work with https (as rewrite rule defined) and two first lines support SSL on apache proxy.
Lavi
Related
I registered a expired domain to forward all incoming links to another domain. The problem is: many inlinks are placed on subdomains, for example: axa-art.cdn.contento-v41.eu/axa-art/0eee9cec-58cb-45b2-a4e2-b5f73920068e_091216_axa+art_classic+car+study_de_rz.pdf
I am looking for a 301 redirect rule in htaccess that forward any url (no matter on main domain or subdomain) to "new-url.tld"
axa-art.cdn.contento-v41.eu
axa-art.cdn.contento-v41.eu/slug
any-subdomain.contento-v41.eu
any-subdomain.contento-v41.eu/slug
all of this example above should
forward to this exact URL: new-domain.tld
Question 1:
Is it possible to create a "general" rule and place it into htaccess of the main directory?
Question 2:
Or do i have to write a specific rule for each subdomain?
Question 3:
Do I have to create a sub-directory and create a separate htaccess in every sub-directory for each subdomain I want to add redirection-rules?
Help or suggestions are highly appreciated. Thank you very much for your help in advance.
This isn't just a .htaccess question. In order for your server to receive requests to <any-subdomain>.example.com the necessary DNS and server config directives need to be in place. If the request doesn't reach your server then you can't implement a redirect in .htaccess.
So, I suspect that these subdomains are not even resolving?
You either need to create the necessary DNS A records and ServerAlias directives one by one for each hostname (ie. subdomain) or create a "wildcard" DNS A record (and ServerAlias *.example.com directive in the vHost). But then you still have an issue with these hostnames being covered by an SSL cert if you need to redirect from HTTPS.
You can then create the necessary redirect in .htaccess. Although, since you need access to the server config (or a using a control panel that does this for you) to implement the directives above, you should also implement this redirect in the server config also.
For example, at the top of your .htaccess file, before the existing directives (or in your vHost):
RewriteEngine On
RewriteCond %{HTTP_HOST} !^new\.example$
RewriteRule ^ https://new.example%{REQUEST_URI} [R=301,L]
The above states... for any request that is not for new.example then 301 redirect to https://new.example/<same-url>.
However, if you have access to the server config and this other domain is configured in its own vHost container then the redirect can be simplified:
Redirect 301 / https://new.example/
UPDATE#1:
this rule does forward any URL form the main domain to the new domain.
# Permanent URL redirect- by netgrade
RewriteEngine on
RewriteCond %{REQUEST_URI} !https://www.marco-mahling.de/$
RewriteRule $ https://www.marco-mahling.de/ [R=302,L]
The rule I posted above should probably replace your existing rule entirely.
Yes, your rule does redirect every URL to the root of the new domain, but it is arguably incorrect. The RewriteCond directive is superflous and isn't actually doing anything. The REQUEST_URI server variable contains the URL-path, it never contains the scheme + hostname. So, the RewriteCond directive you've posted will always be successful.
If that is the rule you currently have then it would already redirect everything. In which case your problem would seem to the necessary DNS and server config directives as mentioned above.
From your directives, I assume that the other domain actually points to a different server (or different vHost on the same server). Otherwise, this would have resulted in a redirect-loop. In which case, you only need the much simpler Redirect directive that I posted above.
UPDATE#2: That works fine BUT the incoming links are still not forwarded cuz of a "%" in the url: https://axa-art.cdn.contento-v41.eu/axa-art%2F0eee9cec-58cb-45b2-a4e2-b5f73920068e_091216_axa+art_classic+car+study_de_rz.pdf
It's actually because of the %2F - an encoded slash (/) in the URL-path. By default, Apache will reject such URLs with a 404 (for security reasons).
To allow encoded slashes in the URL you would need to set AllowEncodedSlashes On in the server config (or vHost container). You cannot set this in .htaccess. (The server generated 404 occurs before .htaccess is even processed.)
However, I would express caution about enabling this feature. (Is there a specific requirement here? Are you recreating these documents on the new server?)
If this request was intended to map directly to a PDF file on disk then this actually looks like an incorrectly URL encoded request, since a slash / is not a permitted filename character on either Windows or Linux.
If you enable AllowEncodedSlashes then the above RewriteRule will redirect the request to /axa-art/0eee9cec....pdf - note the %-decoded / in the resulting URL. You would need to take additional steps to maintain the URL-encoding (if that was required), but as I say, that looks like a mistake to begin with.
I have Apache server serving as a reverse proxy for one of Angular application.
Defined Reverse proxy rules in ssl.conf like below
ProxyPass http://10.10.10.101/xyz/abc
ProxyPassReverse http://10.10.10.101/xyz/abc
And also defined Rewrite conditions
RewriteCond %{REQUEST_URI} !^/xyz/abc(.*)$
But in my code i have one file coming with same URL like /xyz/abc/header.html.
I want to restrict that URL not to go through reverse proxy rule.
How can i restrict it, can some one help me out with this issue?
To make exceptions to proxy you just append "!" at the end, like:
ProxyPass /xyz/abc/header.html !
I keep reading that, where possible, I should not be using mod_rewrite. As such, I am trying to do a http to https rewrite with RedirectMatch.
Question: How can I use RedirectMatch and use Apache server variables (such as %{HTTP_HOST}) in the URL parameter?
This code fails to return a response to the client (Chrome):
RedirectMatch ^(.*) https://%{HTTP_HOST}/$1
I recently asked a similar question to this, but it may have been too wordy and lacks direction for an answer: Redirecting http traffic to https in Apache without using mod_rewrite
If you're using 2.4.19 or later, the Redirect directive has a somewhat obscure feature: putting it inside a Location or LocationMatch will enable expression syntax.
So your example can be written as
<LocationMatch ^(?<PATH>.*)>
Redirect "https://%{HTTP_HOST}%{env:MATCH_PATH}"
</LocationMatch>
(Here, the ?<PATH> notation means that the match capture will be saved to an environment variable with the name MATCH_PATH. That's how we can use it later in the Redirect.)
It's even easier if you always redirect using the entire request path, because you can replace the capture group entirely with the REQUEST_URI variable:
<Location "/">
Redirect "https://%{HTTP_HOST}%{REQUEST_URI}"
</Location>
Now, is this easier to maintain/understand than just using mod_rewrite for this one case? Maybe not. But it's an option.
No, You can't use variables of that type with Redirect/RedirectMatch. If you need variables, such as %{HTTP_HOST}, use mod_rewrite.
Note: I commend you for not trying to use mod_rewrite right away, because most people will go for mod_rewrite even for the simplest of redirections, which is clearly overkill and most times it is just looking to complicate things unnecessarily.
Writing for users who might face the same in future.
Not sure how you are adding vhost entries.
I guess this vhost entries are added automatically with help of some programming script.
Do you use VhostDirective with ServerName?
<VirtualHost *:8080>
ServerName example.domain.com
</VirutalHost>
If so, then you can use the same domain value for populating RedirectMatch field.
If you are manually adding vhost entries just write that domain URL value explicitly instead of HTTP_HOST.
Or let me know if its a different scenario.
I want to redirect one URL to another without changing the Browser URL
www.example.com/abc/(.*).xml should redirect to www.example.com/abc/xyz/index.htm?file=$1
But the Browser should display www.example.com/abc/(.*).xml
You can use a RewriteRule:
RewriteEngine On
RewriteRule /abc/(.*)\.xml$ /abc/xyz/index.htm?file=$1 [L]
Make sure you have mod_rewrite enabled and put this either in your VirtualHost config, or in a .htaccess file in your DocumentRoot
As Constantine posted on the accepted solution, the [P] flag is dangerous as it converts the server as a proxy.
See [this]: https://serverfault.com/questions/214512/redirect-change-urls-or-redirect-http-to-https-in-apache-everything-you-ever?noredirect=1&lq=1
P = Proxy. Forces the rule to be handled by mod_proxy. Transparently provide content from other servers, because your web-server fetches it and re-serves it. This is a dangerous flag, as a poorly written one will turn your web-server into an open-proxy and That is Bad.
My team is trying to setup an Apache reverse proxy from a customer's site into one of our web applications.
http://www.example.com/app1/some-path maps to http://internal1.example.com/some-path
Inside our application we use struts and have redirect = true set on certain actions in order to provide certain functionality. The 302 status messages from these re-directs cause the user to break out of the proxy resulting in an error page for the end user.
HTTP/1.1 302 Found
Location: http://internal.example.com/some-path/redirect
Is there any way to setup the reverse proxy in apache so that the redirects work correctly?
http://www.example.com/app1/some-path/redirect
There is an article titled Running a Reverse Proxy in Apache that seems to address your problem. It even uses the same example.com and /app1 that you have in your example. Go to the "Configuring the Proxy" section for examples on how to use ProxyPassReverse.
The AskApache article is quite helpful, but in practice I found a combination of Rewrite rules and ProxyPassReverse to be more flexible. So in your case I'd do something like this:
<VirtualHost example>
ServerName www.example.com
ProxyPassReverse /app1/some-path/ http://internal1.example.com/some-path/
RewriteEngine On
RewriteRule /app1/(.*) http://internal1.example.com/some-path$1 [P]
...
</VirtualHost>
I like this better because it gives you finer-grained control over the paths you're proxying for the internal server. In our case we wanted to expose only part of third-party application. Note that this doesn't address hard-coded links in HTML, which the AskApache article covers.
Also, note that you can have multiple ProxyPassReverse lines:
ProxyPassReverse / http://internal1.example.com/some-path
ProxyPassReverse / http://internal2.example.com/some-path
I mention this only because another third-party app we were proxying was sending out redirects that didn't include their internal host name, just a different port.
As a final note, keep in mind that Firebug is extremely useful when debugging the redirects.
Basically, ProxyPassReverse should take care of rewriting the Location header for you, as Kevin Hakanson pointed out.
One pitfall I have encountered is missing the trailing slash in the url argument. Make sure to use:
ProxyPassReverse / http://internal1.example.com/some-path/
(note the trailing slash!)
Try using the AJP connector instead of reverse proxy. Certainly not a trivial change, but I've found that a lot of the URL nightmares go away when using AJP instead of reverse proxy.