Hi, I'm new to fail2ban. I currently have all my fw rules in a script, 
that is run from /etc/rc.local, and thus is run at each boot. The script 
begins like this:

iptables -t filter -P INPUT DROP
iptables -t filter -P FORWARD DROP
iptables -t filter -P OUTPUT ACCEPT
iptables -t filter -F INPUT
iptables -t filter -F FORWARD
iptables -t filter -F OUTPUT

and then about 50 lines like:

iptables -t filter -A INPUT ...

for various ports, among which are 22, 80, and 443, which I wish to 
protect with fail2ban.

As far as I can tell from reading the documentation, fail2ban will work 
just fine with my setup. But I wonder: How does fail2ban save and 
restore its state between reboots, or (it happens often enough at my 
home) in case of a power failure?

The way things work now, my script will ignore anything that fail2ban 
may have added. Besides, at boot, the tables are bound to be empty 
anyway, so how does fail2ban restore all the rules from before the 
poweroff?

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