Luyện thi THPT QG 2018
Real World Analysis
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Real World Analysis
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What’s wrong with the break-in theory? Well, no connections were established, no data exchanged, and no connections were stopped after being established. This looks like a typical scan from whatsup.net. Occasionally, you’ll see dns.myplace.com respond with a RESET/ACK meaning that the port that is being scanned is inactive. Other than that, there is no evidence of any two-way conversation. If no RESET/ACK is seen that means that the traffic never actually made it to the inactive port to be rejected. In other words it was blocked by an exterior router. The sensor for this site resides outside the filtering router....
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