I've run into a difficulty with iptables in that both GRC.com and
PCFlank.com's firewall scans show ports 137-139 and 445 as blocked but
not stealthed in spite of the fact that I have these statements in my
firewall script:
iptables -A INPUT -p udp --dport 137:138 -j DROP
iptables -A INPUT -p tcp --dport 137:138 -j DROP
iptables -A INPUT -p tcp --dport 139 -j DROP
iptables -A INPUT -p tcp --dport 445 -j DROP
iptables -A OUTPUT -p udp --dport 137:138 -j DROP
iptables -A OUTPUT -p tcp --dport 137:138 -j DROP
iptables -A OUTPUT -p tcp --dport 139 -j DROP
iptables -A OUTPUT -p tcp --dport 445 -j DROP
Both scans report all else stealthed.
Suggestions?
THX,
Mike
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