Trailing slash at end URL with nginx as a reverse proxy for multiple website

Server NGINX
1

Hi,

I’m running OpenIndiana 151a server then now I’d like to build the web
service with nginx. Briefly, my scenario is: one central server
installed a
few website in virtual machines, and there is a different real machine
that
stores static contents. I want nginx in central server will be the
reverse
proxy (get idea from
Using Nginx as reverse proxy | Bradley Wright).

For example, if someone open website a.com, it will be redirected to
10.0.0.2:8001, and if other go to b.com it will be redirected to
10.0.0.3:8001, etc …

server {
listen 80;
server_name a.com;

location / {
    proxy_pass         http://10.0.0.2:8001;
    proxy_redirect     off;
    server_name_in_redirect off;
}

}

Nginx works fine, but I don’t know how to rewrite/redirect the URL looks
like: http://a.com/something becomes http://a.com/something/

If someone open the link http://a.com/something nginx can’t serve it
then
return the error message that says “http://a.com:8001/something”
unreachable.

If you have any advice, please tell. It’s highly appreciated.

Thanks,

2

On 20 Nov 2011 08h11 WET, [email protected] wrote:

10.0.0.2:8001, and if other go to b.com it will be redirected to
}
}

Nginx works fine, but I don’t know how to rewrite/redirect the URL
looks like: http://a.com/something becomes http://a.com/something/

If someone open the link http://a.com/something nginx can’t serve it
then return the error message that says
“http://a.com:8001/something” unreachable.

If you have any advice, please tell. It’s highly appreciated.

If it’s rewriting all the URIs so that they have a trailing slash then
try this:

  1. At the http level:

map $request_uri $no_trailing_slash {
default 1;
~.*[^/]$ 0;
}

  1. At the server level (vhost):

server {
listen 80;
server_name a.com;

location / {
    if ($no_trailing_slash) {
        return 302 $request_uri/;
    }

    proxy_pass         http://10.0.0.2:8001;
    proxy_redirect     off;
    server_name_in_redirect off;
}

}

— appa

3

On 20 Nov 2011 08h11 WET, [email protected] wrote:

Oops it’s the other way around.

If it’s rewriting all the URIs so that they have a trailing slash then
try this:

  1. At the http level:

map $request_uri $no_trailing_slash {
default 0;
~.*[^/]$ 1;
}

  1. At the server level (vhost):

server {
listen 80;
server_name a.com;

location / {
    if ($no_trailing_slash) {
        return 302 $request_uri/;
    }

    proxy_pass         http://10.0.0.2:8001;
    proxy_redirect     off;
    server_name_in_redirect off;
}

}

— appa

4

On Sun, Nov 20, 2011 at 03:11:27PM +0700, Nguyen Hai N. wrote:

10.0.0.2:8001, and if other go to b.com it will be redirected to
}

  •    proxy_redirect     off;

  •    server_name_in_redirect off;

  •    proxy_redirect     http://a.com:8001/  /;

–
Igor S.

5

On Sun, Nov 20, 2011 at 3:11 PM, Nguyen Hai N. [email protected] wrote:

If someone open the link http://a.com/something nginx can’t serve it then
return the error message that says “http://a.com:8001/something”
unreachable.

Are you sure it’s nginx error and not backend’s?

Also you may want to try adding these lines:

proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;

–
O< ascii ribbon campaign - stop html mail - www.asciiribbon.org

6

Thank you guys for helping.

I’ve tried following of Antonio, Edho and Igor’s advices but no thing
changes.

@Igor: If I add proxy_redirect http://a.com:8001/ /; it will return
error 404 Not Found.

I’m curious in why when I type http://a.com/something it’s redirected
to http://a.com:8001/something, so maybe it’s wrong at reverse proxy
point.

Configuration of reverse proxy as seen:

http {

include /usr/nginx/conf/proxy.conf;

server {
    listen       8080;
    server_name  abc.com;

proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_max_temp_file_size 0;
}
}

In proxy.conf

server {
listen 80;
server_name a.com;

access_log  on;
error_log on;

location / {
    proxy_pass         http://10.2.176.21:8001/;
    #proxy_redirect     off;
    #server_name_in_redirect on;

    proxy_set_header   Host             $host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;

}
}

Thanks for your help.

7

Remove the trailing / from proxy_pass directive.

8

Hi Calin,

It’s removed and still no change.

Thanks,

9

I’ve found that TCP port 8001 was used as VCOM tunnel. Then change nginx
to listen to other port works fine.

Thanks for your kind support.