I create the rules to iptables. But, when I restart the computer, the rules don't work! How to save the rules on Ubuntu ?
The was problem solved!
do:
After of the write the commands iptables, do:
1. sudo su
2. iptables-save > /etc/iptables.rules
3. In /etc/network/if-pre-up.d/iptables,put:
#!/bin/sh
iptables-restore < /etc/iptables.rules
exit 0
4. After, in /etc/network/if-post-down.d/iptables,put:
#!/bin/sh
iptables-save -c > /etc/iptables.rules
if [ -f /etc/iptables.rules ]; then
iptables-restore < /etc/iptables.rules
fi
exit 0
5. After, give permission to the scripts:
sudo chmod +x /etc/network/if-post-down.d/iptables
sudo chmod +x /etc/network/if-pre-up.d/iptables
More information: https://help.ubuntu.com/community/IptablesHowTo#Saving_iptables Good luck!