Protect LAN by blocking SMB traffic

Block windows file and print share and other traffic that could be also used to send viruses. Add the following lines to your /etc/rc.d/rc.local file or to your firewall file (/etc/rc.d/rc.firewall for example). # ------------------- iptables rules -------------------- iptables -A INPUT --protocol tcp --destination-port 135:139 -j DROP iptables -A INPUT --protocol tcp --source-port 135:139 -j DROP iptables -A INPUT --protocol udp --destination-port 135:139 -j DROP iptables -A INPUT --protocol udp --source-port 135:139 -j DROP iptables -A INPUT --protocol tcp --destination-port 445 -j DROP iptables -A INPUT --protocol tcp --source-port 445 -j DROP iptables -A INPUT --protocol udp --destination-port 445 -j DROP iptables -A INPUT --protocol udp --source-port 445 -j DROP # -------------------------------------------------------

 

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