Re: iptables and networking
Hello,
Pol Hallen a écrit :
>
> This is my full iptables config:
>
> iptables -F
> iptables -t nat -F
> iptables -t mangle -F
> iptables -X
OK.
> iptables -P OUTPUT ACCEPT
Should be DROP as well.
> iptables -P FORWARD DROP
> iptables -P INPUT DROP
OK.
> iptables -A INPUT -f -j DROP
Useless. IPv4 connection tracking (needed by the 'state' match)
reassembles packets so iptables won't see any fragments.
> iptables -A INPUT -m state --state INVALID -j DROP
Useless if policy is already DROP and further rules accept only state
NEW, ESTABLISHED or RELATED.
> iptables -A OUTPUT -f -j DROP
See above.
> iptables -A OUTPUT -m state --state INVALID -j DROP
See above.
> iptables -A INPUT -i lo -j ACCEPT
OK.
> iptables -A OUTPUT -o lo -j ACCEPT
Useless if policy is left to ACCEPT.
> iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
OK.
> iptables -A OUTPUT -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
Useless if policy is left to ACCEPT.
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