The thesis covers the discussion of Cisco infrastructure, multi-factor authentication, and their comparison. We include routers, switches, next-generation
firewalls, ISEs, and DUOs in Cisco infrastructure. We have configured and
tested a network environment on which we have added some of the most effective security restrictions. When the user connects to the internal network,
whether via an external network via a secure channel or via an Internet cable, the user must enter security criteria to which only he has access. This
means that upon successful login to the network, the firewall directs him to
which authentication he must successfully complete. This depends on where
he logs in and in which user group he is. If the user is already known, he or she
logs in only with multi-factor authentication, and if the user is not yet known,
Cisco ISE checks the computer to the point that it must successfully complete
all login requests. A secure network helps keep user identity protected and
safer to use. We achieved this with multi-factor authentication and access
restrictions with Cisco DUO and Microsoft AZURE.
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