Nginx缺少libstdc++.so.6共享库导致无法启动

报错信息：

(base) root@server11:/etc/nginx/conf.d# nginx -s reload
nginx: [emerg] dlopen() "/usr/share/nginx/modules/ngx_http_xslt_filter_module.so" failed (libstdc++.so.6: cannot open shared object file: No such file or directory) in /etc/nginx/modules-enabled/50-mod-http-xslt-filter.conf:1

共享库地址：lib32stdc++6

要注意的是lib32stdc++6 共享库在安装时还依赖其他软件包，如下图

依赖地址：gcc-12-base     libc6-i386    lib32gcc-s1 

所以我们要一并下在依赖包

(base) root@server11:~# wget http://archive.ubuntu.com/ubuntu/pool/main/g/gcc-12/lib32stdc++6_12.3.0-1ubuntu1~22.04_amd64.deb
(base) root@server11:~# wget http://archive.ubuntu.com/ubuntu/pool/main/g/gcc-12/lib32gcc-s1_12.3.0-1ubuntu1~22.04_amd64.deb
(base) root@server11:~# wget http://archive.ubuntu.com/ubuntu/pool/main/g/glibc/libc6-i386_2.35-0ubuntu3.7_amd64.deb
(base) root@server11:~# wget http://archive.ubuntu.com/ubuntu/pool/main/g/gcc-12/gcc-12-base_12.3.0-1ubuntu1~22.04_amd64.deb

安装软件包

(base) root@server11:~# dpkg -i lib32stdc++6_12.3.0-1ubuntu1~22.04_amd64.deb libc6-i386_2.35-0ubuntu3.7_amd64.deb lib32gcc-s1_12.3.0-1ubuntu1~22.04_amd64.deb gcc-12-base_12.3.0-1ubuntu1~22.04_amd64.deb

安装完成后重新启动nginx发现报新的错误，报错如下：

(base) root@server11:~# nginx -s reload
nginx: [error] invalid PID number "" in "/run/nginx.pid"

这个问题就比较好解决喽，重新加载nginx.conf文件就可以喽

(base) root@server11:~# nginx -c /etc/nginx/nginx.conf
(base) root@server11:~# nginx -s reload

当然以下方式也可以解决

• 直接将 nginx 主进程的 PID 写入 "/run/nginx.pid"
• 杀掉 nginx 的主进程，然后重启 nginx