I have stand alone workstation withour any network, so I am trying to keep all ports close. I run kernel 2.4 with iptables. Recent scaning (by www.dslreports.com) shows that ports 13,22,37 and 9 are open. Any recomendation on how to close them?
Thanks. My iptables rulles: -------------------------------------------- # Insert connection-tracking modules(not needed if built into kernel). insmod ip_conntrack insmod ip_conntrack_ftp # Create chain which blocks new connections, except if coming from inside. iptables -N block iptables -A block -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A block -m state --state NEW -i ! ppp0 -j ACCEPT iptables -A block -j DROP # Jump to that chain from INPUT and FORWARD chains. iptables -A INPUT -j block iptables -A FORWARD -j block