Hi I am a newbie on nginx, I tried to set it up on my server(running Ubuntu 4), which already has apache running.

So after I apt-get install it, I tried to start nginx. Then I get the message like this:

Starting nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
configuration file /etc/nginx/nginx.conf test is successful
[emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)
[emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)
[emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)
[emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)
[emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)

That makes sense as Apache is using port 80.

Then I tried to modify nginx.conf, I reference some articles, so I changed it like so:

server {

    listen       8080;

    location / {
     proxy_pass  http://94.143.9.34:9500;
     proxy_set_header   Host             $host:8080;
     proxy_set_header   X-Real-IP        $remote_addr;
     proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
     proxy_set_header Via    "nginx";
    }

After saving this and try to start nginx again, I still get the same error as previously. I cannot really find a related post about this, could any good people shred some light?

Thanks in advance :)

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I should post all the content in conf here:

user www-data; worker_processes 1;

error_log /var/log/nginx/error.log; pid /var/run/nginx.pid;

events { worker_connections 1024; # multi_accept on; }

http { include /etc/nginx/mime.types;

access_log  /var/log/nginx/access.log;

sendfile        on;
#tcp_nopush     on;

#keepalive_timeout  0;
keepalive_timeout  65;
tcp_nodelay        on;

gzip  on;
gzip_disable "MSIE [1-6]\.(?!.*SV1)";

include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;

server {

    listen       81;

    location / {
     proxy_pass  http://94.143.9.34:9500;
     proxy_set_header   Host             $host:81;
     proxy_set_header   X-Real-IP        $remote_addr;
     proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
     proxy_set_header Via    "nginx";
    }


}

}

mail { See sample authentication script at: http://wiki.nginx.org/NginxImapAuthenticateWithApachePhpScript

  auth_http localhost/auth.php;
  pop3_capabilities "TOP" "USER";
  imap_capabilities "IMAP4rev1" "UIDPLUS";

 server {
     listen     localhost:110;
     protocol   pop3;
     proxy      on;
 }

 server {
     listen     localhost:143;
     protocol   imap;
     proxy      on;
 }

}

Basically, I changed nothing except adding the server part.