5 - Port scanning Flashcards
1
Q
What is port scanning?
A
– Finds which services are offered by a host
– Identifies vulnerabilities
2
Q
Why is port scanning important to security testers?
A
As a tester you need to see which ports attackers are going after so you can close or protect them.
3
Q
Types of port scans
A
SYN scan
ACK scan
FIN scan
4
Q
Ping Sweeps
A
– Identifys which IP addresses belong to active hosts
5
Q
Problems with Ping sweep
A
– Shut down computers cannot respond
– Networks may be configured to block ICMP Echo
Requests
– Firewalls may filter out ICMP traffic
6
Q
IP Packets contain:
A
– Source IP address
– Destination IP address
– Information about flags
