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Security
This chapter describes several ways to provide security to the Dell EMC Networking system.
For details about all the commands described in this chapter, refer to the Security chapter in the Dell EMC Networking OS
Command Reference Guide.
Topics:
• Role-Based Access Control
• AAA Accounting
• AAA Authentication
• Obscuring Passwords and Keys
• AAA Authorization
• RADIUS
• TACACS+
• Protection from TCP Tiny and Overlapping Fragment Attacks
• Enabling SCP and SSH
• Telnet
• VTY Line and Access-Class Configuration
• Two Factor Authentication (2FA)
• Configuring the System to Drop Certain ICMP Reply Messages
• Dell EMC Networking OS Security Hardening
Role-Based Access Control
With Role-Based Access Control (RBAC), access and authorization is controlled based on a user’s role. Users are granted
permissions based on their user roles, not on their individual user ID. User roles are created for job functions and through those
roles they acquire the permissions to perform their associated job function.
This chapter consists of the following sections:
● Overview
● Privilege-or-Role Mode Versus Role-only Mode
● Configuring Role-based Only AAA Authorization
● System-Defined RBAC User Roles
● Creating a New User Role
● Modifying Command Permissions for Roles
● Adding and Deleting Users from a Role
● Role Accounting
● Configuring AAA Authentication for Roles
● Configuring AAA Authorization for Roles
● Configuring an Accounting for Roles
● Applying an Accounting Method to a Role
● Displaying Active Accounting Sessions for Roles
● Configuring TACACS+ and RADIUS VSA Attributes for RBAC
● Displaying User Roles
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