trouble with iptables

[Mister Geek]

Hi everyone,

I'm quite new to iptables - and am having trouble with
it.  Am using Red Hat Linux 9.  Are my rules correct -
given the requirements?

#  services to be allowed in are http and ssh only.
#  the box can be ping; all others not allowed

iptables -A INPUT -i lo -p all -j ACCEPT
iptables -A INPUT -i eth0 -m state --state
ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p icmp -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -p udp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p udp --dport 80 -j ACCEPT
iptables -P INPUT DROP


#  users on this computer can only browse and ping
local and remote sites
#  all others not allowed

iptables -A OUTPUT -o lo -p all -j ACCEPT
iptables -A OUTPUT -m state --state
ESTABLISHED,RELATED -j ACCEPT
iptables -A OUTPUT -p icmp -j ACCEPT
iptables -A OUTPUT -p tcp --dport 53 -j ACCEPT
iptables -A OUTPUT -p udp --dport 53 -j ACCEPT
iptables -A OUTPUT -p tcp --dport 80 -j ACCEPT
iptables -A OUTPUT -p udp --dport 80 -j ACCEPT
iptables -P OUTPUT DROP


Thanks in advance,

Robert






	
		
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