Tom Evans escribió:
2010/3/2 Daniel López Robles <dalo...@acotelsa.com>:
Hello:
We have two Apaches in a server:
Apache 2.2.14, reverse proxy, listening to IP 192.168.24.X
Apache 2.2.11, which actually serves the websites, listening to IP
192.168.24.Y
Domain name proxy.mysite.es points to our reverse proxy Apache, and we need
it to send requests to the other Apache in this way:
http://proxy.mysite.es/something -> http://something.mysite.es
Our rewrite rule:
RewriteRule ^/(.*) http://$1.mysite.es/ [L,P]
This looks very wrong.
In RewriteLog we can see that the rewrite rule is working fine up to some
point:
....
[pre.mysite.es/sid#db73a0][rid#eef078/initial] (2) rewrite '/something' ->
'http://something.mysite.es/'
...
[pre.mysite.es/sid#db73a0][rid#ef3088/initial] (2) rewrite
'/public/index.aspx' -> 'http://public/index.aspx.mysite.es/'
as these two lines point out.
If you request the URL http://proxy.mysite.es/foo/bar.html on the
proxy, your rule says to rewrite this to http://foo/bar.html.mysite.es
- does that LOOK right?!
I would do this much more explicitly, rather than allow the users to
specify the hosts that we will proxy to:
ProxyPass /something/ http://something.mysite.es/
ProxyPassReverse /something/ http://something.mysite.es/
ProxyPassReverseCookieDomain something.mysite.es proxy.mysite.es
and then repeat those lines for each host that you wish to be proxied.
If you really can't do this, and must have it dynamic, then I suggest
a regular expression tutorial :)
Cheers
Tom
Yes, you are right, Tom, if the user requests
"http//proxy.mysite.es/something/public/index.aspx" it will be rewritten
to "http//something/public/index.aspx.mysite.es/" that is of course not
correct. I know this is not the best RewriteRule directive. The question
is that if http//proxy.mysite.es/something/ is being properly rewritten
as http//something.mysite.es/, and http://something.mysite.es redirects
to http://something.mysite.es/public/index.aspx, why is being logged the
attempt to rewrite "'/public/index.aspx' ->
'http://public/index.aspx.mysite.es/'" in the reverse proxy Apache? It
seems that the http//something.mysite.es/ request is being sent to the
reverse proxy Apache itself.
Actually, I have changed the RewriteRule directive for a more explicity one:
RewriteRule ^/something/(.*) http://www.mysite.es/$1 [L,P]
And some kind of infinite loop is being created. RewriteLog:
192.168.24.X - - [03/Mar/2010:17:23:50 +0100]
[proxy.mysite.es/sid#dbb478][rid#ef0130/initial] (2) init rewrite engine
with requested uri /something/
192.168.24.X - - [03/Mar/2010:17:23:50 +0100]
[proxy.mysite.es/sid#dbb478][rid#ef0130/initial] (3) applying pattern
'^/something/(.*)' to uri '/something/'
192.168.24.X - - [03/Mar/2010:17:23:50 +0100]
[proxy.mysite.es/sid#dbb478][rid#ef0130/initial] (2) rewrite
'/something/' -> 'http://www.mysite.es/'
192.168.24.X - - [03/Mar/2010:17:23:50 +0100]
[proxy.mysite.es/sid#dbb478][rid#ef0130/initial] (2) forcing
proxy-throughput with http://www.mysite.es/
192.168.24.X - - [03/Mar/2010:17:23:50 +0100]
[proxy.mysite.es/sid#dbb478][rid#ef0130/initial] (1) go-ahead with proxy
request proxy:http://www.mysite.es/ [OK]
[...] Then, those 5 lines again and again.
But if I look the access log of the Apache that actually serves
www.mysite.es, I can see also a lot of request at the same time, so it
looks like the request is being sent from the reverse proxy to the
Apache 2.2.11 and back a lot of times.
192.168.24.Y - - [03/Mar/2010:17:23:52 +0100] "GET / HTTP/1.0" 302 191
"-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; WOW64; SV1; .NET
CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR
3.5.30729)"
[...] Again and again.
I don't get it, I must be missing something. Any clue, please?
Thank you very much.
Daniel
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