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Cisco CCNA 200-301 v2.0 · Domain 4: Network services & security

Secure management access: SSH version 2, enable secret, VTY access-class, login banners

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Last reviewed September 30, 2026 · Leer en español

Anyone who gains administrative access to a router or switch controls the network. Securing management access means encrypting remote sessions, protecting privileged mode with a strong password, restricting who can even attempt a login, and showing a legal warning. These are some of the most commonly configured items in CCNA labs, and a missing step usually means SSH silently does not work.

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