nginx的set指令

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set 指令

set 指令是用于定义一个变量，并且赋值

应用环境:

server,location,if

应用示例

例8：
#http://alice.testpm.com ==> http://www.testpm.com/alice
#http://jack.testpm.com ==> http://www.testpm.com/jack
[root@nginx-server conf.d]# cd /usr/share/nginx/html/
[root@nginx-server html]# mkdir jack alice
[root@nginx-server html]# echo "jack.." >> jack/index.html
[root@nginx-server html]# echo "alice.." >> alice/index.html
a. DNS实现泛解析
*           IN      A               网站IP
或者本地解析域名host文件
10.0.105.202 www.testpm.com
10.0.105.202 alice.testpm.com
10.0.105.202 jack.testpm.com
编辑配置文件:
server {
    listen       80;
    server_name  www.testpm.com;
    location / {
         root   /usr/share/nginx/html;
         index  index.html index.htm;
         if ( $host ~* ^www.testpm.com$) {
                break;
         if ( $host ~* "^(.*)\.testpm\.com$" ) {
                set $user $1;
                rewrite .* http://www.testpm.com/$user permanent;
    location /jack {
         root /usr/share/nginx/html;
         index  index.html index.hml;
    location /alice {
         root /usr/share/nginx/html;
         index index.html index.hml;
}

2.5、return 指令

return 指令用于返回状态码给客户端

server,location,if

应用示例:

例9：如果访问的.sh结尾的文件则返回403操作拒绝错误
server {
    listen       80;
    server_name  www.testpm.cn;
    #access_log  /var/log/nginx/http_access.log  main;
    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    location ~* \.sh$ {
        return 403;
例10：80 ======> 443 ：80转443端口
server {
    listen       80;
    server_name  www.testpm.cn;
    access_log  /var/log/nginx/http_access.log  main;
    return 301 https://www.testpm.cn$request_uri;
server {
    listen 443 ssl;
    server_name www.testpm.cn;
    access_log  /var/log/nginx/https_access.log  main;
    #ssl on;
    ssl_certificate   /etc/nginx/cert/2447549_www.testpm.cn.pem;
    ssl_certificate_key  /etc/nginx/cert/2447549_www.testpm.cn.key;
    ssl_session_timeout 5m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
    ssl_prefer_server_ciphers on;
    location / {
        root  /usr/share/nginx/html;
        index index.html index.htm;
[root@nginx-server ~]# curl -I http://www.testpm.cn
HTTP/1.1 301 Moved Permanently
Server: nginx/1.16.0
Date: Wed, 03 Jul 2019 13:52:30 GMT
Content-Type: text/html
Content-Length: 169
Connection: keep-alive
Location: https://www.testpm.cn/

3、last,break详解

[root@localhost test]# cat /etc/nginx/conf.d/last_break.conf 
server {
    listen       80;
    server_name  localhost;
    access_log  /var/log/nginx/last.access.log  main;
    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    location /break/ {
        root /usr/share/nginx/html;
        rewrite .* /test/break.html break;
    location /last/ {
        root /usr/share/nginx/html;
        rewrite .* /test/last.html last;
    location /test/ {
        root /usr/share/nginx/html;
        rewrite .* /test/test.html break;
[root@localhost conf.d]# cd /usr/share/nginx/html/
[root@localhost html]# mkdir test