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Episode 154: Network Hardening Essentials — SNMP, Router Advertisements, and Port Security
Manage episode 495516455 series 3678646
Jason Edwards에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Jason Edwards 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.
Hardening your network means reducing its attack surface and securing its services. In this episode, we look at three high-priority hardening practices: securing SNMP, managing router advertisements, and implementing port security. You’ll learn how to disable or reconfigure SNMPv1/v2 in favor of SNMPv3, ensuring encrypted and authenticated device monitoring. Misconfigured SNMP can expose internal IP structures and community strings to attackers, so locking it down is critical.
We also cover rogue router advertisements that can redirect traffic or disrupt IPv6 networks. Using tools like RA Guard helps control these threats. Finally, we revisit port security at the switch level, limiting MAC addresses and monitoring for violations. This episode gives you actionable configurations that prevent unauthorized access, reduce visibility to attackers, and tighten your network’s defensive perimeter.
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