linux系統為Centos 64位
一、去http://nginx.org/download/上下載相應的版本下載nginx-1.8.0.tar.gz（注：還有更高版本的）。
二、解壓 tar -zxvf nginx-1.8.0.tar.gz
三、進入nginx-1.8.0/文件夾，設置一下配置信息 ./configure --prefix=/usr/local/nginx（安裝后的文件存放路徑）。
四、配置的時候可能會出現類似這樣的信息
./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.
安裝pcre-devel解決問題
yum -y install pcre-devel
安裝完成后再執行./configure --prefix=/usr/local/nginx
執行完后還有可能會出現這樣的問題：
checking for PCRE JIT support ... not found
checking for system md library ... not found
checking for system md5 library ... not found
checking for OpenSSL md5 crypto library ... not found
checking for sha1 in system md library ... not found
checking for OpenSSL sha1 crypto library ... not found
checking for zlib library ... found
解決辦法：
yum -y install openssl openssl-devel
安裝完成后再執行./configure --prefix=/usr/local/nginx
出現這個說明，配置成功了！！~
五、make && make install
出現類似這樣的就表示安裝成功了
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 `/root/setup/nginx/nginx-1.8.0'
安裝完后/usr/local/nginx 后出現幾個文件夾conf、html、logs、sbin
啟動nginx:
./usr/nginx/sbin/nginx
查看端口：
netstat -antp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 19031/nginx
tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 2771/vsftpd
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 906/sshd
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 2263/mysqld
nginx的80端口啟動了。
訪問安裝nginx的服務器地址，出現如下圖，說明成功了。