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Summary: Network Security
(assorted topics)
Network threats and defenses
2
· Most traffic on the Internet is unencrypted and
unauthenticated.
· This allows a range of attacks.
(But adding cryptography is not always a
satisfactory solution!)
· It also motivates a range of attack-detection
techniques and defenses.
Network mapping
3
· Attacker probes a network to learn
topology/architecture
host information
services running on hosts
vulnerabilities
· Probing is allowed by open, low-level network
protocols, e.g., pinging.
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