How to update firewall with cron?

[belvin]

How to update firewall with cron?

I have access to a set of iptables rules that block spam originating from Asia.
This set of rules is updated frequently and I would like my server firewall to use the updated data.

Bringing the new rules on my server with cron is easy.

I know Plesk's rules are stored in a database, but to implement its firewall, it seems that Plesk creates a script called firewall-active.sh

Questions
If I open the script firewall-active.sh, inject my special anti-spam rules in it (via cron), then run the script (via cron), will this update my firewall properly?

Is there any other shell command that needs to be done to refresh the iptables firewall, besides running the script firewall-active.sh ?

Thanks

 

[Highland]

Could I suggest you use APF instead of the Plesk Firewall? Much easier to configure and it would be much easier for your script. All you would need to do is edit the /etc/apf/deny_hosts.rules file and then issue
#apf -r