Nmap ACK Scan

Question 1

Define Nmap Ack scan

Answer 1

Scan utilizing the ack TCP flag

Question 2

Nmap Ack Scan Mechanics

Answer 2

No response = filtered

RST response = non-filtered (open filtered)

Question 3

Nmap Ack Scan Command

Answer 3

nmap -sA [ip/hostname]

Question 4

Ack Scan Non-Filtered Results Determination

Answer 4

Not filtered by firewall, or

Not RFC compliant host with the 793 RFC

Question 5

Variations

Answer 5

TTL

Windows based

Question 6

Nmap TTL Scan Command

Answer 6

nmap –ttl [time] [ip/hostname]

Question 7

Nmap Window Scan Command

Answer 7

nmap -sW [ip/hostname]

Question 8

Explain Nmap Window Scan

Answer 8

Closed ports have window size of 0,
Open ports have size greater than 0,
No response likely filtered