nginx安装步骤

1. 上传Nginx安装包

上传到opt目录失败，没有权限。上传到/home/nginx 目录。

2. 解压安装包

tar -zxvf nginx-1.14.2.tar.gz

3. 编译

权限原因，指定安装位置为 /home/nginx/nginx

运行如下编译命令。

./configure --prefix=/home/nginx/nginx

有错误提示，环境不全

./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.

yum -y install pcre-devel openssl openssl-devel

内网无网络，外部下载pcre-8.37.tar.gz 上传至 /home/nginx,其余依赖一并如此安装。

解压并编译安装

tar -zxvf pcre-8.37.tar.gz
cd pcre-8.37/
./configure
#切换root用户，否则没有权限
make&&make install 

依赖安装完成后重新执行如下命令编译nginx，指定目录/home/nginx/nginx-server

./configure --prefix=/home/nginx/nginx-server

Configuration summary
  + using system PCRE library
  + OpenSSL library is not used
  + using system zlib library

  nginx path prefix: "/home/nginx/nginx-server"
  nginx binary file: "/home/nginx/nginx-server/sbin/nginx"
  nginx modules path: "/home/nginx/nginx-server/modules"
  nginx configuration prefix: "/home/nginx/nginx-server/conf"
  nginx configuration file: "/home/nginx/nginx-server/conf/nginx.conf"
  nginx pid file: "/home/nginx/nginx-server/logs/nginx.pid"
  nginx error log file: "/home/nginx/nginx-server/logs/error.log"
  nginx http access log file: "/home/nginx/nginx-server/logs/access.log"
  nginx http client request body temporary files: "client_body_temp"
  nginx http proxy temporary files: "proxy_temp"
  nginx http fastcgi temporary files: "fastcgi_temp"
  nginx http uwsgi temporary files: "uwsgi_temp"
  nginx http scgi temporary files: "scgi_temp

4. 安装

make&&make install

安装完毕后启动报错。

nginx用户无法使用80端口。切换为root用户启动。

nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)

5. 启动

./sbin/nginx

启动成功后，浏览器访问，打开失败。

查看80端口，防火墙未打开。

 firewall-cmd --query-port=80/tcp
 false

设置临时打开

firewall-cmd --zone=public --add-port=80/tcp
#firewall-cmd --zone=public --add-port=80/tcp --permanent 

再次访问浏览器，显示403。

修改配置文件，变更启动用户 为root

user root

重新刷新配置，访问正常。