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Episode 124 — Misconfigured NICs and VLANs — Interface Troubleshooting Tactics
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This episode explains how misconfigured network interface cards (NICs) and VLAN settings can disrupt server connectivity. We cover issues such as incorrect VLAN tagging, mismatched speed and duplex settings, and disabled interfaces. The discussion includes how multi-NIC configurations require careful planning for load balancing, redundancy, or VLAN segmentation.
Practical examples include diagnosing a server that cannot reach its intended subnet due to missing VLAN tags or correcting a mismatch between switch and NIC configurations. Troubleshooting steps involve reviewing NIC settings, verifying VLAN assignments, and coordinating with network teams to ensure proper switch port configurations. Understanding these tactics ensures candidates can restore network access quickly and reliably. Produced by BareMetalCyber.com, where you’ll find more cyber prepcasts, books, and information to strengthen your certification path.
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