blog/linux/centos安装使用nginx

centos安装使用nginx

预置环境

yum install -y gcc gcc-c++

yum -y install pcre-devel openssl openssl-devel

下载

wget http://tar.matosiki.site/tar/nginx-1.15.0.tar.gz

tar -vxzf nginx-1.15.0.tar.gz 

cd nginx-1.15.0




./configure

# 如果有fastfds模块 或者 可以使用 

./configure --add-module=/usr/local/fastdfs-nginx-module/src


make & make install

编辑配置文件

vi /usr/local/nginx/conf/nginx.conf

更改端口

 server {
        listen       8899;
        server_name  localhost;

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

}

1. 静态文件转发

   # 映射到本地路径 /home/iki/download
   location /download/ {
     root /home/iki;
     autoindex on;
   }
   
   # 映射到其他服务器地址
   location /proxy/ {
     proxy_pass http://172.27.82.119:9000;
   }

2. 反向代理

# 配置一个server
server {
       listen       8800;
       server_name  matosiki.site;

       location / {
         proxy_pass http://matosiki.site ;
       }
   }

3. 负载均衡

   upstream matosiki.site; {
       ip_hash;
       server 172.27.82.119:8080;
       server 172.27.82.119:8082;
       server 172.27.82.121;
       server 172.27.82.112;
   }
   location / {
       proxy_pass http://matosiki.site;
   }

启动

# 调试配置文件是否成功
/usr/local/nginx/sbin/nginx -t
# 启动
/usr/local/nginx/sbin/nginx
# 重启
/usr/local/nginx/sbin/nginx -s reload

# 停止
/usr/local/nginx/sbin/nginx -s stop

# 强制关闭
pkill nginx

# 查看nginx 启动用户
ps aux | grep "nginx: worker process" | awk '{print $1}'

配置开机启动

更改下面配置文件

# 启动应用路径
nginx="/usr/local/nginx/sbin/nginx"

# 文件配置
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"

vi /etc/init.d/nginx

#!/bin/sh
#
# 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

nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)

NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"

[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx

lockfile=/var/lock/subsys/nginx

make_dirs() {
   # make required directories
   user=`$nginx -V 2>&1 | grep "configure arguments:.*--user=" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
   if [ -n "$user" ]; then
      if [ -z "`grep $user /etc/passwd`" ]; then
         useradd -M -s /bin/nologin $user
      fi
      options=`$nginx -V 2>&1 | grep 'configure arguments:'`
      for opt in $options; do
          if [ `echo $opt | grep '.*-temp-path'` ]; then
              value=`echo $opt | cut -d "=" -f 2`
              if [ ! -d "$value" ]; then
                  # echo "creating" $value
                  mkdir -p $value && chown -R $user $value
              fi
          fi
       done
    fi
}

start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    make_dirs
    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
}

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

更改文件权限

chmod a+x /etc/init.d/nginx

/etc/init.d/nginx start
/etc/init.d/nginx stop

# 添加到开机自启中

chkconfig --add /etc/init.d/nginx

# 启动开机自启

chkconfig nginx on

启动服务

service nginx start

service nginx stop

service nginx restart