Hello, Fabio S. Silva a écrit :
Hi all, i have a question, i make a firewall but when i make a scan using nmap it returns to me that the ports are in state filtered no close
What type of scan ? Which iptables target do you use to filter connection attempts on ports you want to close ? DROP or REJECT (if so, what type of reject) ?
My results with nmap 2.54 various TCP scans : (better displayed with a fixed-sized font) Target / TCP scan type -T(connect) -S(syn) -F(fin) -X(Xmas) -N(null) DROP filtered filtered open open open REJECT icmp-port-unreach closed filtered filtered filtered filtered REJECT tcp-reset closed closed closed closed closed