php-fpm 手工开启监听9000端口

php环境在服务器安装好了以后是默认使用unix socker进行代码解析的，如果需要配置NGINX多服务器协同，需要手工开启监听9000端口
配置文件目录
/etc/php/7.4/fpm/pool.d/www.conf

修改如下
; The address on which to accept FastCGI requests.
; Valid syntaxes are:
; 'ip.add.re.ss:port' - to listen on a TCP socket to a specific IPv4 address on
; a specific port;
; '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
; a specific port;
; 'port' - to listen on a TCP socket to all addresses
; (IPv6 and IPv4-mapped) on a specific port;
; '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
; listen = /run/php/php7.4-fpm.sock
listen = 9000