Nginx Installation in Linux

                                                             
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wget http://nginx.org/download/nginx-1.0.15.tar.gz

[root@test src]# tar -zxvf nginx-1.0.15.tar.gz

[root@test src]# ./configure --prefix=/usr/local/ --with-http_ssl_module
checking for PCRE library in /usr/pkg/ ... not found
checking for PCRE library in /opt/local/ ... not found

./configure: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option, or install the PCRE library into the system, or build the PCRE library
statically from the source with nginx by using --with-pcre=<path> option.

[root@test nginx-1.0.15]# yum install pcre*
[root@test nginx-1.0.15]# ./configure --prefix=/usr/local/ --with-http_ssl_module
Configuration summary
  + using system PCRE library
  + using system OpenSSL library
  + md5: using OpenSSL library
  + sha1: using OpenSSL library
  + using system zlib library

  nginx path prefix: "/usr/local/"
  nginx binary file: "/usr/local//sbin/nginx"
  nginx configuration prefix: "/usr/local//conf"
  nginx configuration file: "/usr/local//conf/nginx.conf"
  nginx pid file: "/usr/local//logs/nginx.pid"
  nginx error log file: "/usr/local//logs/error.log"
  nginx http access log file: "/usr/local//logs/access.log"
  nginx http client request body temporary files: "client_body_temp"
  nginx http proxy temporary files: "proxy_temp"
  nginx http fastcgi temporary files: "fastcgi_temp"
  nginx http uwsgi temporary files: "uwsgi_temp"
  nginx http scgi temporary files: "scgi_temp"

make

make install

cp conf/nginx.conf '/usr/local/nginx//conf/nginx.conf.default'
test -d '/usr/local/nginx//logs'                || mkdir -p '/usr/local/nginx//logs'
test -d '/usr/local/nginx//logs' ||             mkdir -p '/usr/local/nginx//logs'
test -d '/usr/local/nginx//html'                || cp -R html '/usr/local/nginx/'
test -d '/usr/local/nginx//logs' ||             mkdir -p '/usr/local/nginx//logs'
make[1]: Leaving directory `/usr/local/src/nginx-1.0.15'

[root@test nginx-1.0.15]# cd /usr/local/nginx/
[root@test nginx]# ls

conf  html  logs  sbin

[root@test nginx]# cd conf

[root@test conf]# vi nginx.conf


server {
        listen       8081;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   /var/ww/html;
            index  index.html index.htm;
        }

    listen: Specifies the port on which this virtual host listens.
    server: Lists the host headers for the site.
    location /: Specifies how to handle requests under the location '/', the site root.
    root: The document root for the site.
    index: An ordered priority list of default documents.


to test the configuration file

[root@test conf]# /usr/local/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/nginx//conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx//conf/nginx.conf test is successful

[root@test conf]# cd /usr/local/nginx/sbin/
[root@test sbin]# ./nginx

When you start up your nginx (just go to sbin and type ./nginx in order to start your web server!) you get few more directories:

[root@test sbin]# ps -ef | grep nginx
1222      9940  2436  0 05:05 ?        00:00:01 /usr/bin/kwrite /home/test/Desktop/nginx
root     18195     1  0 05:54 ?        00:00:00 nginx: master process ./nginx
nobody   18196 18195  0 05:54 ?        00:00:00 nginx: worker process
root     18202  3430  0 05:54 pts/1    00:00:00 grep nginx

[root@test nginx]# ls
client_body_temp  conf  fastcgi_temp  html  logs  proxy_temp  sbin  scgi_temp  uwsgi_temp

In config file

TCP nopush setting means that HTTP response hearders are all sent in one packet. Sendfile setting means that Nginx ignores the details of the file it is sending and uses kernel sendfile support instead. Keepalive setting defines how long server waits for users packets. This should be changed only to few seconds on busy sites. Gzip compression saves bandwith on site, depending what kind of packets server is sending.

/usr/local/nginx/html is the doc root.

http://localhost:8081

Welcome to nginx!

Note: If your server currently is configured with another web server, you'll likely need to have Nginx listen on a port other than 80. This is done simply by editing the 'listen' setting in the default server block, as well as any additional server blocks that are created.