CentOS iptables configuration

Hello,

I followed this tutorial and now my iptables configurations has following rules:

sudo iptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP
sudo iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP
sudo iptables -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
sudo iptables -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
sudo iptables -A INPUT -p tcp -s [some_IP_address] -m tcp --dport 22 -j ACCEPT
sudo iptables -I INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
sudo iptables -P OUTPUT ACCEPT
sudo iptables -P INPUT DROP

My question is - does it mean that all ports on my server are closed for inbound connections except 80, 443 and port 22 opened for a given IP address.

Regards, Velizar