rndc: connection failed: 127.0.0.1#953: connection refused
rndc connects through port 953 on the 127.0.0.1 ip address (aka localhost).
Your firewall (iptables) setting has that port blocked.
Please post your Linux distribution's name and version number (add it to your profile) for better help.
There's a good chapter on DNS/bind here
regardless of distribution.
You'll find the config filenames in there.