查看CentOS的版本
使用一下命令来查看一下当前系统的版本
[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
添加资源库
在 CentOS 系统上安装 Nginx ,你得先去添加一个资源库,像这样:
vim /etc/yum.repos.d/nginx.repo
使用 vim 命令去打开 /etc/yum.repos.d/nginx.repo ,如果 nginx.repo 不存在,就会去创建一个这样的文件,打开以后按一下小 i 键,进入编辑模式,然后复制粘贴下面这几行代码,完成以后按 esc 键退出,再输入:wq (保存并退出)
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1
yum 命令去安装 nginx
完成上边操作以后,我们就可以使用 yum 命令去安装 nginx 了
yum install nginx
安装成功:
Loaded plugins: fastestmirror, langpacks
nginx | 2.9 kB 00:00
nginx/7/x86_64/primary_db | 14 kB 00:01
Loading mirror speeds from cached hostfile
* base: mirrors.sina.cn
* extras: mirrors.btte.net
* updates: mirrors.sina.cn
Resolving Dependencies
--> Running transaction check
---> Package nginx.x86_64 1:1.10.1-1.el7.ngx will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
nginx x86_64 1:1.10.1-1.el7.ngx nginx 640 k
Transaction Summary
================================================================================
Install 1 Package
Total download size: 640 k
Installed size: 2.1 M
Is this ok [y/d/N]: y
Downloading packages:
nginx-1.10.1-1.el7.ngx.x86_64.rpm | 640 kB 00:27
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : 1:nginx-1.10.1-1.el7.ngx.x86_64 1/1
----------------------------------------------------------------------
Thanks for using nginx!
Please find the official documentation for nginx here:
* http://nginx.org/en/docs/
Commercial subscriptions for nginx are available on:
* http://nginx.com/products/
----------------------------------------------------------------------
Verifying : 1:nginx-1.10.1-1.el7.ngx.x86_64 1/1
Installed:
nginx.x86_64 1:1.10.1-1.el7.ngx
Complete!
测试nginx配置文件
当你执行 nginx -t 得时候,nginx会去测试你得配置文件得语法,并告诉你配置文件是否写得正确,同时也告诉了你配置文件得路径:
nginx -t
打印如下:
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
说明配置文件成功!
配置域名指向
查看/etc/nginx/nginx.conf
文件,内容如下:
user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
keepalive_timeout 65;
#gzip on;
include /etc/nginx/conf.d/*.conf;
}
最后一行可以看出nginx
的配置都在conf.d
文件中,而且是读取改文件夹下所有的.conf
文件。所以我们可以在这个文件夹下随意的创建配置文件,比如test.conf
,其内容如下:
server {
listen 80;
server_name test.hahaha.com;
client_max_body_size 64M;
location / {
proxy_pass http://127.0.0.1:3000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
首先需要从万网上边把这个域名给指向到这个服务器的IP上来。
这个时候,用户访问 test.hahaha.com
,万网就会指向到这个服务器上,然后 nginx
默认监听的是80端口,这样,nginx
就会接收到这个请求,随后,nginx
通过以上的配置,把请求指向到本服务器上的 3000
端口的服务商
停止、启动、重启
在CentOS7中,进行chkconfig
命令操作时会发现有类似systemctl.....
的提示,systemct
可以简单实现service
和chkconfig
的结合,这样通过一个命令就可以实现两个命令的功能。
systemctl命令的基本操作格式是:
systemctl [OPTIONS...] {COMMAND}...
以nginx服务为例,实现停止、启动、重启的动作如下:
systemctl stop nginx.service
systemctl start nginx.service
systemctl restart nginx.service
检查服务状态
systemctl status nginx.service
使服务开机启动
systemctl enable nginx.service
取消服务开机启动
systemctl disable nginx.service
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