et connection</li><li>Denial of access to any internet services</li></ul>
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<h4>Distributed Denial of Service (DDoS)</h4>
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<p>In DDoS, multiple compromised systems are involved to attack a target.</p>
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<p>The attacker send several connection request to the server with fake return address, so the server can't find a user to send the connection approval. The authentication p