Nginx之环境准备

1. 操作系统

• CentOS 6.4 x86_64

2.软件版本

• Nginx 1.4.2

3.实验拓扑

注，实验拓扑见下文。

4.安装yum源

[root@nginx ~] # rpm -ivh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
[root@web1 ~] # rpm -ivh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
[root@web2 ~] # rpm -ivh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

5.各节点时间同步

[root@nginx ~] # ntpdate 202.120.2.101
[root@web1 ~] # ntpdate 202.120.2.101
[root@web2 ~] # ntpdate 202.120.2.101

6.关闭防火墙与SELinux

[root@nginx ~] # service iptables stop
[root@nginx ~] # chkconfig iptables off
[root@nginx ~] # getenforce
Disabled
[root@web1 ~] # service iptables stop
[root@web1 ~] # chkconfig iptables off
[root@web1 ~] # getenforce
Disabled
[root@web2 ~] # service iptables stop
[root@web2 ~] # chkconfig iptables off
[root@web2 ~] # getenforce
Disabled

三、安装Nginx

1.解压

[root@nginx src] # tar xf nginx-1.4.2.tar.gz

2.新建nginx用户与组

[root@nginx src] # groupadd -g 108  -r nginx
[root@nginx src] # useradd -u 108 -r -g 108 nginx
[root@nginx src] # id nginx
uid=108(nginx) gid=108(nginx) 组=108(nginx)

3.准备编译配置文件

[root@nginx src] # yum install -y pcre-devel openssl-devel
[root@nginx nginx-1.4.2] # ./configure   --prefix=/usr   --sbin-path=/usr/sbin/nginx   --conf-path=/etc/nginx/nginx.conf   --error-log-path=/var/log/nginx/error.log   --http-log-path=/var/log/nginx/access.log   --pid-path=/var/run/nginx/nginx.pid    --lock-path=/var/lock/nginx.lock   --user=nginx   --group=nginx   --with-http_ssl_module   --with-http_flv_module   --with-http_stub_status_module   --with-http_gzip_static_module   --http-client-body-temp-path=/var/tmp/nginx/client/   --http-proxy-temp-path=/var/tmp/nginx/proxy/   --http-fastcgi-temp-path=/var/tmp/nginx/fcgi/   --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi   --http-scgi-temp-path=/var/tmp/nginx/scgi   --with-pcre

4.编译并安装

[root@nginx nginx-1.4.2] # make && make install

5.为nginx提供SysV init脚本

[root@nginx ~] # cat /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.
[  "$NETWORKING"  =  "no"  ] &&  exit  0
nginx= "/usr/sbin/nginx"
prog=$( basename  $nginx)
NGINX_CONF_FILE= "/etc/nginx/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:"  |  sed  's/[^*]*--user=\([^ ]*\).*/\1/g'  -`
   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
}
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

6.为此脚本赋予执行权限

[root@nginx ~] # chmod +x /etc/init.d/nginx

7.添加至服务管理列表，并让其开机自动启动

[root@nginx ~] # chkconfig --add nginx
[root@nginx ~] # chkconfig nginx on
[root@nginx ~] # chkconfig nginx --list
nginx              0:关闭    1:关闭    2:启用    3:启用    4:启用    5:启用    6:关闭

8.启动nginx

[root@nginx ~] # service nginx start
正在启动 nginx：                                           [确定]

9.查看一下端口

[root@nginx ~] # netstat -ntlp | grep :80
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      3889 /nginx

好了，Nginx安装与配置就到这里，下篇我们会说一说Nginx的反向代理。