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Author(s) Olivier Bonaventure
Deadline No deadline
Submission limit No limitation
Category tags ssh

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Another ssh trace


Question 1: Affirmations

Looking at the trace above, select the affirmations below that are correct.

Question 2: A simple ssh trace

The attached packet trace was collected on a Linux server. In the ssh protocol, the client and the server propose an ordered list of encryption schemes and technique that is supported by both of them and has the highest preference is selected.


0000  b6b200163a3585a2  00000000a000aaaa  
0010  00300000                            

0000  ²..:5.¢......ªª
0010  .0..            
  • Transmission Control Protocol, Src Port: 46770, Dst Port: 22, Seq: 0, Len: 0
    • Source Port: 46770
      • Destination Port: 22
        • TCP Segment Len: 0
          • Sequence number: 0 (relative sequence number)
            • Acknowledgment number: 0
              • 1010 .... = Header Length: 40 bytes (10)
                • Window size value: 43690
                  • Calculated window size: 43690
                    • Checksum: 0x0030 [unverified]
                      • Urgent pointer: 0