A firewall is a software or hardware-based network security system that controls the incoming and outgoing network traffic by analyzing the data packets and determining whether they should be allowed through or not, based on a rule set. A firewall establishes a barrier between a trusted, secure internal network and another network (e.g., the Internet) that is not assumed to be secure and trusted.
Secure Sockets Layer (SSL), is a cryptographic protocols that provide communication security over the Internet.
A web application firewall limits administrative access to a web application and helps prevent common malicious attacks like SQL injections and cross-site scripting.
University of Nebraska ITS Security requires application developers and server administrators to use two-factor authentication for root-level access. Duo Security is scalable and can integrate with almost every IT service on campus.
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