When I try to scan a network using this command:
nmap -Pn -f -A ( specific ip adress)
I cannot find out which ports are open but I get this result:
All 1000 scanned ports on 10.10.10.3 are filtered
Too many fingerprints match this host to give specific OS details
When I use nmap -Pn -f -a (name of box) (specific ip adress)
I am able to see one port but I know there are other ports that are open that I cannot see.What is the problem?