解决了 发现80端口被apache2进程占用 导致飞牛的nginx不能启动
systemctl status trim_nginx

journalctl -xeu trim_nginx.service

netstat -anlp | grep 80 发现80端口被apache2的进程占用,所以直接kill -9 [pid]
systemctl restart trim_nginx 重启飞牛nginx后正常。
systemctl stop apache2
systemctl disable apache2 禁用apache2(彻底删除apt purge apache2)