Nginx安装和使用

安装前准备(centos7)

1. 安装必须的环境
   yum install gcc gcc-c++ openssl openssl-devel pcre pcre-devel

2. 去官网下载tengine官方网站 http://tengine.taobao.org/

3. 安装
   下载
   wget http://tengine.taobao.org/download/tengine-2.0.3.tar.gz
   解压
   tar -zxvf tengine-2.0.3.tar.gz
   进入解压目录
   cd tengine-2.0.3
   编译，如果成功会有MakeFile
   ./configure
   //编译并且安装
   make && make install
   编写允许脚本
   vi /etc/init.d/nginx
   （注意：TENGINE_HOME="/opt/luoyu/nginx"
   nginx="/opt/luoyu/nginx/sbin/nginx"
   prog=$(basename $nginx)
   NGINX_CONF_FILE="/opt/luoyu/nginx/conf/nginx.conf"
   是你的nginx安装目录）

#!/bin/bash
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig: - 85 15
# description: Nginx is an HTTP(S) server, HTTP(S) reverse
# proxy and IMAP/POP3 proxy server
# processname: nginx
# config: /etc/nginx/nginx.conf
# config: /etc/sysconfig/nginx
# pidfile: /var/run/nginx.pid
  
# Source function library.
. /etc/rc.d/init.d/functions
  
# Source networking configuration.
. /etc/sysconfig/network
  
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
  
TENGINE_HOME="/opt/luoyu/nginx"
nginx="/opt/luoyu/nginx/sbin/nginx"
prog=$(basename $nginx)
  
NGINX_CONF_FILE="/opt/luoyu/nginx/conf/nginx.conf"
  
[ -f /etc/sysconfig/nginx ] && /etc/sysconfig/nginx
  
lockfile=/var/lock/subsys/nginx
  
start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    echo -n $"Starting $prog: "
    daemon $nginx -c $NGINX_CONF_FILE
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}
  
stop() {
    echo -n $"Stopping $prog: "
    killproc $prog -QUIT
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
    killall -9 nginx
}
  
restart() {
    configtest || return $?
    stop
    sleep 1
    start
}
  
reload() {
    configtest || return $?
    echo -n $"Reloading $prog: "
    killproc $nginx -HUP
    RETVAL=$?
    echo
}
  
force_reload() {
    restart
}
  
configtest() {
    $nginx -t -c $NGINX_CONF_FILE
}
  
rh_status() {
    status $prog
}
  
rh_status_q() {
    rh_status >/dev/null 2>&1
}
  
case "$1" in
start)
    rh_status_q && exit 0
    $1
;;
stop)
    rh_status_q || exit 0
    $1
;;
restart|configtest)
    $1
;;
reload)
    rh_status_q || exit 7
    $1
;;
force-reload)
    force_reload
;;
status)
    rh_status
;;
condrestart|try-restart)
    rh_status_q || exit 0
;;
*)
  
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
exit 2
esac

4. 加入脚本
   chmod +x /etc/init.d/nginx
   chkconfig nginx on
   service nginx start

5. 下面是没有脚本的nginx命令

LINUX启动Nginx的命令:
一、查询是否启动
[root@node01]# ps -ef | grep nginx
root     25225     1  0 19:26 ?        00:00:00 nginx: master process /app/nginx/sbin/nginx
www      25229 25225  0 19:26 ?        00:00:00 nginx: worker process
root     25247 19431  0 19:30 pts/0    00:00:00 grep nginx

二、启动
[root@node01]# /app/nginx/sbin/nginx
[root@node01]# ps -ef | grep nginx  
root     25192     1  0 19:22 ?        00:00:00 nginx: master process /app/nginx/sbin/nginx
www      25193 25192  0 19:22 ?        00:00:00 nginx: worker process
root     25195 19431  0 19:22 pts/0    00:00:00 grep nginx

三、停止
从容停止Nginx：
kill -QUIT 主进程号
[root@node01]# kill -QUIT 19513
[root@node01]# ps -ef | grep nginx
root     25190 19431  0 19:22 pts/0    00:00:00 grep nginx

快速停止Nginx：
kill -TERM 主进程号
[root@node01]# kill -TERM 25192
[root@node01]# ps -ef | grep nginx
root     25203 19431  0 19:23 pts/0    00:00:00 grep nginx
[root@node01]# 

强制停止Nginx：
kill -9 主进程号  
[root@node01]# kill -9 25205
[root@node01]# ps -ef | grep nginx
www      25206     1  0 19:24 ?        00:00:00 nginx: worker process
root     25210 19431  0 19:24 pts/0    00:00:00 grep nginx

四、重启
[root@node01]# /app/nginx/sbin/nginx -s reload
[root@node01]# 

6. 反向代理

server
        {
        listen      80;
        server_name  www.domain.net;
     
        location / {
                proxy_pass        http://www.domain.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;
        }
 
      access_log  off;
  }