Linux 优先级
查看优先级：ps -o pid, cmd, nice
其中NI 对应的就是优先级
优先级范围：-20（最高） - 19（最低）
首次定义优先级：nice --20 任务名称
修改优先级：renice 19 pid
用户查看优先级：nice
用户修改优先级：renice 19 -u 用户名
普通用户只能降低自己的优先级，不能提高
Nginx Proxy & Load Balance & LNMP
Nginx Proxy Service E-commerce website Server 1: provide image request response ( apache / nginx ) Server 2: provide dynamic request response ( php-fpm / apache-php ) Server 3: provide static request response ( apache / nginx ) Server 4: provide data request response ( mysql ) It need one additional nginx server 1. Install nginx 2. proxy to specific server Example location / { proxy_pass http://192.168.199.187:80/; } location /bbs/ { proxy_pass http://192.168.199.187:80/bbs/; } location ~* \.(jpg|png|gif)$ { proxy_pass http://172.16.100.7; } Enhance the log information and specific the hostname location / { proxy_pass http://192.168.199.187:80/; proxy_set_header <parameter name> $host; (client requst the hostname ) proxy_set_header <parameter name> $remote_addr; ...
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