RH9 Unable to access internet after setting Firewall?

Goodday!

Tried to setup Firewall using the Guide "RedHat Linux 9 for Dummies"

I follow every single steps , and the firewall is succesfully setup.

But i cannot access the internet when the Firewall is up.

Below is what i have done!

[root@localhost root]# iptables --flush
[root@localhost root]# iptables --flush -t nat
[root@localhost root]# iptables --policy INPUT DROP
[root@localhost root]# iptables --policy OUTPUT DROP
[root@localhost root]# iptables --policy FORWARD DROP
[root@localhost root]# iptables -A OUTPUT -j ACCEPT -o lo
[root@localhost root]# iptables -A INPUT -j ACCEPT -i lo
[root@localhost root]# iptables -A OUTPUT -m state --state NEW,RELATED,ESTABLISHED --j ACCEPT
[root@localhost root]# iptables -A OUTPUT -m state --state RELATED,ESTABLISHED --j ACCEPT
[root@localhost root]# iptables -A INPUT -p tcp -m state --state NEW,ESTABLISHED -j ACCEPT --dport 22
[root@localhost root]# cd /etc/init.d/
[root@localhost init.d]# sshd start
Extra argument start.
[root@localhost init.d]# iptables -A OUTPUT -m state --state RELATED,ESTABLISHED --j ACCEPT
[root@localhost init.d]# iptables -A INPUT -p tcp -m state --state NEW,ESTABLISHED -j ACCEPT --dport 80
[root@localhost init.d]# cd /etc/init.d/
[root@localhost init.d]# sshd start
Extra argument start.
[root@localhost root]# iptables -L
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere state NEW,ESTABLISHED tcp dpt:ssh

Chain FORWARD (policy DROP)
target prot opt source destination

Chain OUTPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state NEW,RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED

Chain RH-Lokkit-0-50-INPUT (0 references)
target prot opt source destination
[root@localhost root]# iptables-save > /etc/sysconfig/iptables


After i type the command below i cant access the internet!
[root@localhost root]# /etc/init.d/iptables start
Flushing all current rules and user defined chains: [ OK ]
Clearing all current rules and user defined chains: [ OK ]
Applying iptables firewall rules: [ OK ]

Thankyou!