Practice Safe Networking
summary
Argues flat networks are fragile and shows concrete fixes: a home VLANed setup with multiple SSIDs, a layer‑3 switch and SOHO firewall (Sophos home example) that reduces lateral spread; tools recommended include Pi‑hole or OpenDNS and Wireshark for baselining; mitigations demonstrated are port security with sticky MAC (shut down on violation), DHCP snooping and disabling CDP to prevent spoofing/enum, plus ACLs and regular logging and updates — practical changes that actually stop common attacks.
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chapters (16)
- 0:00Introduction
- 2:33Definitions
- 3:33Broadcast Domain
- 4:42Network Architecture
- 6:27Prevention
- 10:20Flat Networks
- 11:43VLAN
- 13:25Router
- 17:37Home Networking
- 19:17ACLs
- 20:17SMB Network
- 22:16Logging and Monitoring
- 24:01Distributed Networking
- 25:31Common Attacks Mitigation
- 29:40DHCP Spoofing
- 33:36Best Practices
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