前言

总用root运行太麻烦。注意的是，非root启动1024以下端口会报错，需要修改，注意服务。(奇怪，怎么这里可以写服务，上一篇又不行的？)

安装nginx

下载

http://nginx.org/packages/centos/7/x86_64/RPMS/

nginx-1.12.1-1.el7.ngx.x86_64.rpm，不下载nginx-1.12.2-1.el7_4.ngx.x86_64.rpm

因为需要试试1.12.1是否还会报整数溢出漏洞。

查看操作系统

radhat或centos存在： /etc/redhat-release 这个文件【 命令 cat /etc/redhat-release 】 ubuntu存在 : /etc/lsb-release 这个文件 【命令 cat /etc/lsb-release 】 debian存在 cat /etc/debian_version 这个文件 Slackware存在 cat /etc/slackware_version 这个文件 参考： https://blog.csdn.net/dafei4/article/details/79589369

查看版本

根据版本选择下载的rpm包。版本是7，是64位的。

查看centos版本：

[webapp@pay-app-sever ~]$ uname -a
Linux pay-app-sever 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ cat /etc/issue
\S
Kernel \r on an \m
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ cat /proc/version
Linux version 3.10.0-327.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Thu Nov 19 22:10:57 UTC 2015
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ uname -r
3.10.0-327.el7.x86_64
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ file /bin/ls
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=aa7ff68f13de25936a098016243ce57c3c982e06, stripped
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ getconf LONG_BIT
64
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ getconf WORD_BIT
32
https://blog.csdn.net/shuaigexiaobo/article/details/78030008

安装

需要使用root用户。

[root@pay-app-sever nginx]# rpm -ivh nginx-1.12.1-1.el7.ngx.x86_64.rpm
warning: nginx-1.12.1-1.el7.ngx.x86_64.rpm: Header V4 RSA/SHA1 Signature, key ID 7bd9bf62: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...1:nginx-1:1.12.1-1.el7.ngx         ################################# [100%]
----------------------------------------------------------------------Thanks for using nginx!Please find the official documentation for nginx here:
* http://nginx.org/en/docs/Please subscribe to nginx-announce mailing list to get
the most important news about nginx:
* http://nginx.org/en/support.htmlCommercial subscriptions for nginx are available on:
* http://nginx.com/products/---------------------------------

赋权webapp用户

chown webapp /var/log/nginx
chown webapp /var/log/nginx/*
chown webapp /etc/nginx
chown webapp /etc/nginx/*
chown webapp /etc/nginx/conf.d/*
chown webapp /usr/sbin/nginx
chown webapp /var/cache/nginx
mkdir /var/run/nginx
chown webapp  /var/run/nginxvi /etc/nginx/nginx.conf
#pid        /var/run/nginx.pid;
pid        /var/run/nginx/nginx.pid;vi /etc/nginx/conf.d/default.conf
#    listen       80;listen       18010;

启动

[webapp@pay-app-sever ~]$ nginx
nginx: [warn] the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /etc/nginx/nginx.conf:2
[webapp@pay-app-sever ~]$
[webapp@pay-app-sever ~]$ ps -ef|grep nginx
webapp    84434      1  0 11:36 ?        00:00:00 nginx: master process nginx
webapp    84435  84434  0 11:36 ?        00:00:00 nginx: worker process

成功访问

http://0.23.12.109:8010/

目录

1. 配置所在目录：/etc/nginx/
2. PID目录：/var/run/nginx/nginx.pid
3. 错误日志：/var/log/nginx/error.log
4. 访问日志：/var/log/nginx/access.log
5. 默认站点目录：/usr/share/nginx/html

常用命令

1. 启动nginx：nginx
2. 重启nginx（不杀进程，重新加载nginx.conf）：killall -HUP nginx
3. 停止nginx：nginx -s stop
4. 测试nginx配置：nginx -t