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BackTrack 4: Assuring Security by Penetration Testing by Shakeel Ali, Tedi Heriyanto

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SNMP analysis

Simple Network Management Protocol (SNMP) is an application-layer protocol designed to run on UDP port 161. Its main function is to monitor all the network devices for conditions which may require administrative attention, such as power outage or unreachable destination. The SNMP-enabled network typically consists of network devices, manager, and agent. A manager controls the administrative tasks for network management and monitoring operations, an agent is a software which runs on the network devices, and these network devices could involve routers, switches, hubs, IP cameras, bridges, and sometimes operation system machines (Linux, Windows). These agent-enabled devices report information about their bandwidth, uptime, running processes, ...

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