记一次使用普通用户同时启动nginx <1024端口和>1024端口权限问题

nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)

nginx 默认安装目录：/usr/local/nginx

chown -R nginx:nginx nginx
chmod u+s nginx

正常使用 nginx 用户启动会有错误
sudo -unginx nginx

Starting nginx... nginx: [warn] the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /usr/local/nginx/conf/nginx.conf:1
nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)

因为项目里面有很多域名，80 端口和大于 1024 的端口都存在，nginx 是不允许用普通用户启动80 端口

我们只需要进入到/usr/local/nginx/sbin 执行

setcap cap_net_bind_service=+eip nginx 设置bind 权限
然后再去查看权限：
getcap nginx
输出：
nginx = cap_net_bind_service+eip

再去检测：
sudo -uhnnx nginx -t

nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

最后我们执行：
service nginx start || sudo -uhnnx nginx

无论如何，解决问题就行

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