在安裝nginx之前可以先安裝libevent，安裝libevent步驟如下：
1.下載libevent：
wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
2.解壓libevent：
tar -zxvpf libevent-2.0.21-stable.tar.gz
3.進入解壓目錄：
cd libevent-2.0.21-stable
4.指定安裝目錄：
./configure --prefix=/usr/local/libevent-2.0.21
5.安裝libevent：
make
make install
6，安裝nginx
yum install -y openssl*
tar -xvf pcre-8.31.tar.gz -C /usr/local/
tar -xvf nginx-1.4.2.tar.gz
cd nginx-1.4.2
./configure --with-http_ssl_module --prefix=/usr/local/nginx --with-pcre=/usr/local/pcre-8.31 --with-http_stub_status_module
pS：首席編譯腳本 1.121/122
yum -y install gcc automake autoconf libtool make
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_realip_module --with-http_gzip_static_module --with-http_ssl_module --with-pcre=/usr/local/pcre-8.31
make
make install
7，查看編譯參數：
/usr/local/nginx/sbin/nginx -V
8，使用nginx帳號啟動
setcap CAP_NET_BIND_SERVICE=+ep /usr/local/nginx/sbin/nginx
要先用root帳號運行 /usr/local/nginx/sbin/nginx 啟動，然後kill掉nginx進程
再切換到nginx帳號執行service nginx restart或者/usr/local/nginx/sbin/nginx 啟動，就會看到進程是用nginx帳號在啟動了
9，報錯調試
[nginx@lb_net_1 ~]$ service nginx start
start nginx
nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)
nginx is running[nginx@lb_net_1 ~]$
[nginx@lb_net_1 ~]$ exit
logout
[root@lb_net_1 conf]#
[root@lb_net_1 conf]# sudo chown root:wheel /usr/local/nginx/sbin/nginx
[root@lb_net_1 conf]# sudo chmod u+s /usr/local/nginx/sbin/nginx
[root@lb_net_1 conf]#
[root@lb_net_1 conf]# su - nginx
[[root@lb_net_1 conf]# sudo chmod u+x /usr/local/nginx/sbin/nginx
之後進入nginx帳號啟動成功了。
