查看CentOS的版本
使用一下命令來查看一下當前系統的版本
[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
添加資源庫
在 CentOS 系統上安裝 Nginx ,你得先去添加一個資源庫,像這樣:
vim /etc/yum.repos.d/nginx.repo
使用 vim 命令去打開 /etc/yum.repos.d/nginx.repo ,如果 nginx.repo 不存在,就會去創建一個這樣的文件,打開以后按一下小 i 鍵,進入編輯模式,然后復制粘貼下面這幾行代碼,完成以后按 esc 鍵退出,再輸入:wq (保存并退出)
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1
yum 命令去安裝 nginx
完成上邊操作以后,我們就可以使用 yum 命令去安裝 nginx 了
yum install nginx
安裝成功:
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!
測試nginx配置文件
當你執行 nginx -t 得時候,nginx會去測試你得配置文件得語法,并告訴你配置文件是否寫得正確,同時也告訴了你配置文件得路徑:
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
說明配置文件成功!
配置域名指向
查看/etc/nginx/nginx.conf
文件,內容如下:
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,而且是讀取改文件夾下所有的.conf
文件。所以我們可以在這個文件夾下隨意的創建配置文件,比如test.conf
,其內容如下:
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;
}
}
首先需要從萬網上邊把這個域名給指向到這個服務器的IP上來。
這個時候,用戶訪問 test.hahaha.com
,萬網就會指向到這個服務器上,然后 nginx
默認監聽的是80端口,這樣,nginx
就會接收到這個請求,隨后,nginx
通過以上的配置,把請求指向到本服務器上的 3000
端口的服務商
停止、啟動、重啟
在CentOS7中,進行chkconfig
命令操作時會發現有類似systemctl.....
的提示,systemct
可以簡單實現service
和chkconfig
的結合,這樣通過一個命令就可以實現兩個命令的功能。
systemctl命令的基本操作格式是:
systemctl [OPTIONS...] {COMMAND}...
以nginx服務為例,實現停止、啟動、重啟的動作如下:
systemctl stop nginx.service
systemctl start nginx.service
systemctl restart nginx.service
檢查服務狀態
systemctl status nginx.service
使服務開機啟動
systemctl enable nginx.service
取消服務開機啟動
systemctl disable nginx.service