The Operating System Layer

Using the tests mapped to this layer, administrators can track the overall health of the target host, CPU and memory utilization, disk utilization and the states of each of the disk partitions of the host individually, entropy size and availability, Swap space utilization, uptime of the system, etc. Let us now proceed to discuss these tests and other the disabled test pertaining to this layer. The Command Execution Test, File Changes Test, and Uptime Test mapped to this layer have been discussed in The Operating System Layer

Figure 1 : The tests associated with the Operating System layer of a Linux server