>> #iptables -A INPUT -p tcp --dport 3001 -j REJECT >> >> kemudian saya scan server saya : >> >> 3001/tcp filtered nessusd >> >> Kenapa pada port 3001 State-nya disebutkan filtered ? bukankah >> seharusnya closed ? >> mohon pencerahannya .. >> >> tks&rgds > > iptables, -j REJECT tanpa parameter apapun akan mengirimkan > icmp-port-unreachable, ini biasanya mengindikasikan suatu port itu di > 'filter', kalau pingin 'stealthy' (closed) gunakan tcp-reset, > eg. iptables -A INPUT -p tcp --dport 3001 -j REJECT --reject-with > tcp-reset
Udah tuh mas, tapi kok malah gak terlihat ya (port 3001nya) ? ini hasilnya : # nmap -sS -P0 myserver Starting nmap V. 3.00 ( www.insecure.org/nmap/ ) Interesting ports on myserver (192.168.0.12): (The 1596 ports scanned but not shown below are in state: closed) Port State Service 22/tcp open ssh 25/tcp open smtp 80/tcp open http 110/tcp open pop-3 143/tcp open imap2 maksud saya, saya mau tertulis state-nya : closed tks --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
