iptables snippet

iptables_snippet

## iptables snippet ##

# Get current iptables list with line numbers
/usr/bin/sudo /sbin/iptables --line-numbers -L

# Add a rule to the INPUT chain, append it to the end
/usr/bin/sudo /sbin/iptables -A INPUT -p tcp --dport 12345 -j ACCEPT

# Insert a rule to the INPUT chain, before the line number 7
/usr/bin/sudo /sbin/iptables -I INPUT 7 -p tcp --dport 12345 -j ACCEPT

# Delete the rule at line number 13, in the INPUT chain
/usr/bin/sudo /sbin/iptables -D INPUT 13