During a disaster recovery switchover, which network services may need modifications as part of a multisite failover?

During a disaster recovery switchover, modifications to network services are often essential to ensure continuity and functionality in the new environment. When considering RADIUS and FTP, both play critical roles in network management and data transfer that can be impacted during a failover.

RADIUS (Remote Authentication Dial-In User Service) is crucial for managing user authentication, particularly in a multi-site setup. During a switchover, the RADIUS servers may need to be reconfigured to point to the new site, ensuring that authentication requests are successfully processed at the backup site. This might involve updating IP addresses, shared secrets, and configurations related to user access policies.

FTP (File Transfer Protocol) is used for transferring files between systems. If the primary FTP server is located at the primary site, adjustments will be necessary to redirect file transfers to the server or endpoint at the failover site. This can include updating DNS entries, configuring firewall rules, and ensuring that the necessary storage resources are accessible.

Therefore, both RADIUS and FTP may require modifications during a multisite failover to maintain secure access and effective data transfer across the network, making the response that all of the mentioned services may need changes a valid and comprehensive answer.