Question

Activity 1 – Using Netcat to Run Commands on Another Box

1. Fire up a virtual box guest OS. Install netcat if necessary (or if in Windows, check out netcat for windows or ncat from the maker of nmap). Start netcat in listener mode tying it to a command shell (see CHR chapter 8). Some versions of netcat can’t run commands, in which case you might need to install netcat-traditional
2. From another box (your host machine or another VM), initiate a netcat connection to you’re the box you set up in Step 1.
3. You should now have command prompt access (i.e. shell access). Type in a few commands (e.g. “dir” in Windows or “ls” in Linux) and document that what you type in one box affects the other box (i.e. that those commands are executed on the other box).
4. Take a screenshot of BOTH windows side-by-side or ask Dr. V to validate your setup.

Activity 2 – Intro to Putty SSH

1. Use instructions on next page to activate your Krypton account & set a new password.
2. Log in (in Putty or SSH client) on the Krypton (Unix) system.
3. Use Putty to create an encrypted tunnel (MAC users, use command-line SSH client) to mnsu.edu using source port 5555.
4. Edit your connection in your internet browser so that when you connect to 127.0.0.1:5555 you are sent to mnsu.edu through the tunnel.
5. Start Wireshark and sniff the packets that belong to your machine.
6. Open the newly configured browser and go to 127.0.0.1.
7. Document (i.e. PROVE) with Wireshark that the traffic is NOT being sent in plaintext directly to mnsu.edu but is instead being sent via the encrypted tunnel.

Note: you may still see some plaintext traffic (between your browser & your SSH client), but you should not be able to see any plaintext traffic going directly to mnsu.edu.

(hint: look for (i.e. filter) traffic going to the IP address of the mnsu.edu webserver)

      7.   Take appropriate screenshots to support your argument or have Dr. V verify it.

Answer 1

Answer 1
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Answer 2
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do not have krypton account with me but with ssh connection the connection between that source and destination communication will be encrypted.

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