Qustion for reverse-proxy for virtual host

Hi all:

I try to setup the NGINX as a reverse-proxy to protect several
webservers,
which lots of websites are running on. Yes, it is a virtual host :slight_smile:

abc.com |-----------[nginx reverse proxy] ------- |virtualhost] ----/abc
directory
123.com|
|โ€“/123 directory

[note] the virtualhost port is 80.

I go through the wiki.nginx.net and can not find any configuration
related
with the topology.

Any one can paste a configuration for such case?
how can I distinguish the different server in one listening port?

thanks
George

You can use the proxy_pass directive and it will work.

From: [email protected] [mailto:[email protected]] On Behalf Of
quan
nexthop
Sent: Monday, October 05, 2009 2:00 AM
To: nginx; [email protected]
Subject: Qustion for reverse-proxy for virtual host

Hi all:

I try to setup the NGINX as a reverse-proxy to protect several
webservers,
which lots of websites are running on. Yes, it is a virtual host :slight_smile:

abc.com |-----------[nginx reverse proxy] ------- |virtualhost] ----/abc
directory

123.com |
|โ€“/123 directory

[note] the virtualhost port is 80.

I go through the wiki.nginx.net and can not find any configuration
related
with the topology.

Any one can paste a configuration for such case?

how can I distinguish the different server in one listening port?

thanks

George

On Mon, Oct 05, 2009 at 04:00:23PM +0800, quan nexthop wrote:

[note] the virtualhost port is 80.

I go through the wiki.nginx.net and can not find any configuration related
with the topology.

Any one can paste a configuration for such case?
how can I distinguish the different server in one listening port?

Probably you need

server {
    server_name  abc.com;
    location / {
        proxy_pass  http://123.com/abc/;
    }
}

server {
    server_name  def.com;
    location / {
        proxy_pass  http://123.com/def/;
    }
}

On Sun, Oct 11, 2009 at 05:55:35PM +0800, quan nexthop wrote:

X-Real-IP: 192.168.2.169
HTTP/1.1 404 Not Found
GET / HTTP/1.1
Content-Length: 248
I marked with RED, there are some difference. I can not dig into deep.
please help me for the issue.

Then I do not understand, what you meant by this:

abc.com |----[nginx reverse proxy] โ€“ |virtualhost] --/abc directory
123.com|
|โ€“/123 directory

Sorry later feedback because of the bussiness trip.

I configured it according to Igor S.'s advice, but it failed.
I sniff in the webserverโ€™s side, I found the request message is
stranger.

Case1: Access from 192.168.2.169->192.168.10.169(web server) VIA
NGINX
reverse proxy.

GET /abc.com HTTP/1.0
Host: abc.com
X-Real-IP: 192.168.2.169
X-Forwarded-For: 192.168.2.169
Connection: close
Accept: /
Accept-Language: zh-cn
Pragma: no-cache
If-Modified-Since: Sun, 11 Oct 2009 08:53:36 GMT
If-None-Match: โ€œc8752c52504aca1:2b3โ€
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Proxy-Connection: Keep-Alive

HTTP/1.1 404 Not Found
Content-Length: 1308
Content-Type: text/html
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Sun, 11 Oct 2009 09:19:44 GMT
Connection: close

Case 2. Access from 192.168.2.169->192.168.10.169(web server) BYPASS
the
NGINX revers proxy

GET / HTTP/1.1
Accept: /
Accept-Language: zh-cn
Accept-Encoding: gzip, deflate
If-Modified-Since: Sun, 11 Oct 2009 08:53:36 GMT
If-None-Match: โ€œc8752c52504aca1:2b3โ€
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Host: abc.com
Connection: Keep-Alive

HTTP/1.1 200 OK
Content-Length: 248
Content-Type: text/html
Content-Location: http://abc.com/index.htm
Last-Modified: Sun, 11 Oct 2009 08:53:36 GMT
Accept-Ranges: bytes
ETag: โ€œc8752c52504aca1:2c1โ€
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Sun, 11 Oct 2009 09:19:34 GMT

The case 1 is failed. If I bypass the NGINX revers-proxy, it success.
I marked with RED, there are some difference. I can not dig into deep.
please help me for the issue.

I pasted the configuration as following:

47 server {
48 listen 8080;
49 server_name abc.com;
50 access_log /var/log/nginx/access.log;
51
52 location / {
53 proxy_pass http://192.168.10.169/abc.com;
54 proxy_redirect default;
55 proxy_set_header Host $host;
56 proxy_set_header X-Real-IP $remote_addr;
57 proxy_set_header X-Forwarded-For
$proxy_add_x_forwarded_for;
58 client_max_body_size 50m;
59 client_body_buffer_size 256k;
60 }
61 }
62 server {
63 listen 8080;
64 server_name def.com;
65 access_log /var/log/nginx/access.log;
66
67 location / {
68 proxy_pass http://192.168.10.169/def.com;
69 proxy_redirect default;
70 proxy_set_header Host $host;
71 proxy_set_header X-Real-IP $remote_addr;
72 proxy_set_header X-Forwarded-For
$proxy_add_x_forwarded_for;
73 client_max_body_size 50m;
74 client_body_buffer_size 256k;
75 }
76 }

thanks
NextHop

HI:

Let me give a summary for my question, it is a long descrption.

  1. My question is :
    I try to setup the NGINX as a reverse-proxy to protect a WebServer. The
    topology is a VirtualHost.
    abc.com |-----------[nginx reverse proxy] ------- |virtualhost] ----/abc
    directory
    123.com|
    |โ€“/123
    directory

[note] the virtualhost port is 80

  1. I got a configuration as the following:
    Add these in NGINX.conf
    server {
    server_name abc.com;
    location / {
    proxy_pass http://123.com/abc/;
    }
    }
    server {
    server_name def.com;
    location / {
    proxy_pass http://123.com/def/;
    }
    }

  2. When I do according to the above the configuration, I can not access
    the
    VirtualHost.
    I sniff and get the following packet(in Serverโ€™s side)

GET /abc.com HTTP/1.0
Host: abc.com
X-Real-IP: 192.168.2.169
X-Forwarded-For: 192.168.2.169
Connection: close
Accept: /
Accept-Language: zh-cn
Pragma: no-cache
If-Modified-Since: Sun, 11 Oct 2009 08:53:36 GMT
If-None-Match: โ€œc8752c52504aca1:2b3โ€
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Proxy-Connection: Keep-Alive

HTTP/1.1 404 Not Found
Content-Length: 1308
Content-Type: text/html
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Sun, 11 Oct 2009 09:19:44 GMT
Connection: close

Case 2. Access from 192.168.2.169->192.168.10.169(web server) BYPASS
the
NGINX revers proxy

GET / HTTP/1.1
Accept: /
Accept-Language: zh-cn
Accept-Encoding: gzip, deflate
If-Modified-Since: Sun, 11 Oct 2009 08:53:36 GMT
If-None-Match: โ€œc8752c52504aca1:2b3โ€
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Host: abc.com
Connection: Keep-Alive
HTTP/1.1 200 OK
Content-Length: 248
Content-Type: text/html
Content-Location: http://abc.com/index.htm
Last-Modified: Sun, 11 Oct 2009 08:53:36 GMT
Accept-Ranges: bytes
ETag: โ€œc8752c52504aca1:2c1โ€
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Sun, 11 Oct 2009 09:19:34 GMT

At present, I still donโ€™t know how to configure Reverse-Proxy for
VirtualHost.

please give me a help.

thanks
NextHop

On Mon, Oct 12, 2009 at 02:43:47AM +0800, quan nexthop wrote:

123.com|
|โ€“/123
directory

I still do not understand why you mention /123 directory, however,
according sniffed packets, you need something like this:

server {
    server_name  abc.com;
    location / {
        proxy_pass        http://123.com;
        proxy_set_header  $host;
    }
}
server {
    server_name  def.com;
    location / {
        proxy_pass        http://123.com;
        proxy_set_header  $host;
    }
}

It works now.
thanks for your help.

Nexthop

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