iptables执行时报错"iptables : Couldn't load target `standard':No such file or directory"如何处理?

答：重装iptables

1. 查看库

# dpkg -L iptables | fgrep standard
/usr/lib/x86_64-linux-gnu/xtables/libxt_standard.so

2. 重装iptables

# apt install --reinstall -y iptables