Linux Firewall (v)--regular backup and restore of firewall

One, the first backup restore usage, using the tool

Iptables-save >/opt/iprules.txt

Iptables-restore </opt/iprules.txt #注意导入的文件必须使用iptables-save tools are available.

Third, second backup restore usage, using service scripts

Service Iptables Stop simply clears the user-state rule, and the kernel-state thing is not moving.

Service Iptables Save the Rules

Service Iptables Start only applies the rules in the/etc/sysconfig/iptables file again.

If we are writing firewall rules, write the mess, want to delete, then you can restart, so you discard this edit, restore to the original state, because you do not save

Linux Firewall (v)--regular backup and restore of firewall