Chris Javier
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Learn More About SecureW2
Why SecureW2
Establish continuous trust with Dynamic PKI and Cloud RADIUS. Enforce access based on live identity, device posture, and risk context.
- Passwordless authentication that can't be phished
- Works with your IdP, MDM, and security stack
- Real-time policy engine for dynamic access control
Explore the Platform
Get the essentials on the products that power continuous enforcement.
Knowledge Base Articles
Explore practical guidance from engineers and admins deploying SecureW2.
- Setup and configuration tutorials
- Integration best practices with IdPs and MDMs
- Troubleshooting guides for PKI and RADIUS
Related Articles
A technical guide explaining how TACACS secures administrative access to network devices using centralized AAA and TCP port 49.
Network Authentication & AAA
March 10, 2026
What is TACACS and How Does it Work? TACACS vs. TACACS+
TACACS is a centralized AAA protocol used to secure administrative access to routers, switches, and firewalls. This guide explains how TACACS works, why it uses TCP port 49, how encryption...
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EAP-TTLS enables password-based Wi-Fi authentication inside a secure TLS tunnel for enterprise networks.
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What Is EAP-TTLS? | EAP-TLS vs EAP-TTLS/PAP
EAP-TTLS is an 802.1X authentication method that creates a secure TLS tunnel and then verifies user credentials using protocols such as PAP. This guide explains how EAP-TTLS works, how it...
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AES encryption secures modern data across TLS, Wi-Fi, VPNs, and storage systems.
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What Is AES Encryption? AES-128 vs AES-256 Explained
AES is a NIST-standardized symmetric block cipher used worldwide to protect sensitive data. This guide explains how AES works, compares key sizes, and outlines where it’s used in modern security...
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A technical guide explaining TACACS servers, TACACS+ protocol behavior, TCP port 49, and AAA separation.
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What Is a TACACS Server? TACACS+ Explained vs RADIUS Guide
TACACS+ is a centralized AAA protocol designed to secure administrative access to network devices. This guide explains how TACACS servers work, how TCP port 49 is used, key differences between...
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PKI authentication secures enterprise access using digital certificates instead of passwords.
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What is PKI Authentication? How PKI Authentication Works
PKI authentication verifies users and devices using digital certificates and asymmetric cryptography. This guide explains how PKI authentication works, its benefits for enterprise security, and how organizations use certificate-based authentication...
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A technical guide explaining how TACACS+ secures administrative access to network devices using centralized AAA and TCP port 49.
Network Authentication & AAA
February 26, 2026
TACACS+ Explained: Protocol, Authentication & When to Use
TACACS+ is a centralized AAA protocol used to secure administrative access to routers, switches, and firewalls. This guide explains how TACACS+ works, why it uses TCP port 49, how encryption...
By Vivek Raj
5 min read