I have searched around and I have run these commands

iptables -A INPUT -p tcp -d 0/0 -s 0/0 --dport 5432 -j ACCEPT
iptables-save > /etc/iptables.rules

And I rebooted the box. I had no luck.

What am I missing? IS there a universal way to do this thing in ubuntu? I remember in fedora I just need to edit a text file and make it happen.

Thanks

UPDATE

I have run

ufw allow 5432

and I ran

 ufw status 

I got this result

Status: active

To                         Action      From
--                         ------      ----
5432/tcp                   ALLOW       Anywhere
80                         ALLOW       Anywhere
22                         ALLOW       Anywhere
5432                       ALLOW       Anywhere
5432/tcp                   ALLOW       Anywhere (v6)
80                         ALLOW       Anywhere (v6)
22                         ALLOW       Anywhere (v6)
5432                       ALLOW       Anywhere (v6)

I still cannot access 5432!