Unix Security - General

General

Secure network communication:

  • Layer 7: GPG/PGP
  • Layers 4,5: SSL/TLS/Stunnel/S/MIME
  • Layer 3: VPN, IPsec
  • Layer 2: PPTP

Packet sniffing:

  • tcpdump, Wireshark

Attacks:

  • Man in the middle attack
  • land ping of death xmas Denial-of-service attack et al.

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