Thanks for answer. Did not get this to work, I did however thing I got around to the rules that I need. But sadly they did not help me since I still can't access it.
iptables -A INPUT -s 192.168.1.0/24 -d 192.168.1.0/24 -p tcp -m tcp --dport 21 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT...