How many total tcp/tcp6 ports are listening? (count each row as one)
7
How many total udp/udp6 ports are listening (you won't see "LISTEN" by any
... [Show More] of these)? (count each row as one)
6
The value after the last colon in the "Local Address" column is the port number; are the port numbers the same for the tcp/tcp6 and udp/udp6 ports?
no
The rightmost column now shows PID/Program name; what is the program name associated with tcp port 22 (either one)?
sshd
The line after "Escape character is..." is called a "banner"; what is the banner you see?
SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.8 or SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.9
The banner can tell you what program is actually listening; does the banner seem to approximately match the Program Name that netstat returned?
yes, both indicate SSH
What does netstat indicate is the Program Name associated with the new listening port (999)?
nc
Do you get a banner (text on the line after "Escape character is ...") when you connect? If so, what is the text of the banner?
no
What happens now if you try to telnet to port 999 (like you did in step 8)? (hint: be patient)
timeout (message is "telnet: Unable to connect to remote host: Connection timed out")
Does the site indicate that port 22 is open or closed?
open
Does the site indicate that port 999 is open or closed?
closed
Do you see log entries for the failed connections to port 999 from your Ubuntu system?
yes
Do you see log entries for the failed connections to port 999 from the remote website (www.yougetsignal.com)?
no
What might explain the results of questions 12 and 13?
GMU or other firewall blocks port 999 inbound
How many total TCP ports are listening? (i.e., the far right column, "State" has value "LISTENING")
11-20
The port number is the value after the colon under the "Local Address" header. What is the program name associated with tcp port 22?
sshd.exe
The text that appears (at the top of a blank Command Prompt windows is called a "banner"; what is the banner you see?
SSH-2.0-OpenSSH_7.2
The banner can tell you what program is actually listening; does the banner seem to approximately match the Program Name that netstat returned?
yes (both indicated SSH)
Does the banner on the Windows system exactly match the banner you got on the Ubuntu system?
no
If you were remotely connecting to a system on port 22, and you didn't know the operating system of the computer to which you were connecting, and you saw one of these banners, could it help you determine the operating system of the computer to which you were connecting?
yes, because some versions only run on certain operating systems [Show Less]