Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 86
Dell EMC Networking OS Security Hardening, Dell EMC Networking OS Image Verification
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For example, 255.255.0.0. 5 Assign an IP address as the default gateway for the system. uBoot mode => setenv gatewayip gateway_ip_address For example, 10.16.150.254. 6 Save the modified environmental variables. uBoot mode => saveenv 7 Reload the system. uBoot mode reset Dell EMC Networking OS Security Hardening The security of a network consists of multiple factors. Apart from access to the device, best practices, and implementing various security features, security also lies with the integrity of the device. If the software itself is compromised, all of the aforementioned methods become ineffective. The Dell EMC Networking OS is enhanced verify whether the OS image and the startup configuration file are altered before loading. This section explains how to configure OS image and startup configuration verification. Dell EMC Networking OS Image Verification Dell EMC Networking OS comes with the OS image verification and the startup configuration verification features. When enabled, these features check the integrity of The OS image and the startup configuration that the system uses while the system reboots and loads only if they are intact. Important Points to Remember • The OS image verification feature is disabled by default on the Dell EMC Networking OS. • The OS image verification feature is supported for images stored in the local system only. • The OS image verification feature is not supported when the fastboot or the warmboot features are enabled on the system. • If OS image verification fails after a reload, the system does not load the startup configuration. The System displays an appropriate error message until the no verified boot command is used on the system. • After you enable The OS image verification feature, the system prompts you to enter The OS image hash when you upgrade the Dell EMC Networking OS to a later version. The system checks if your hash matches with The OS image hash only after reloading. • After enabling The OS image verification feature, use the verified boot hash command to verify and store the hash value. If you don't store the hash value, you cannot reboot the device until you verify The OS image hash. Enabling and Configuring OS Image Hash Verification To enable and configure Dell EMC Networking OS image hash verification, follow these steps: 1 Enable the OS image hash verification feature. CONFIGURATION mode 86 Management
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