Overview Credential stuffing replays leaked username/password pairs across thousands of subscriber accounts, one or two tries each. Per-account lockout never trips, so the attack looks like background noise until the takeovers start. On a broadband network the login surfaces are RADIUS-backed PPPoE and hotspot authentication, carrier Wi-Fi portals, and self-care accounts. All of them terminate […]
Summary “24/7 support” only guarantees that a vendor will accept your ticket at any hour. It says nothing about response speed, escalation, expertise, or restoration. Demand response time tiers by severity, with two targets per tier: time to a qualified human (automated acknowledgments do not count) and time to workaround or restoration. You define the […]
Every operations team knows failover should be tested, including the AAA (authentication, authorization, and accounting) layer, where the stakes are highest. Knowing how to run an AAA failover drill safely is not the hard part; far fewer teams actually run one, and the reason is rarely laziness. It’s fear. The AAA server sits in the […]
These ten TACACS+ security best practices start with attribution (mentioned below): one credential per human, least privilege per command, a second factor on privileged roles. Classic TACACS+ on TCP port 49 obfuscates rather than encrypts, so confine it to a hardened management network and treat shared secrets as cryptographic keys. RFC 9887 (published 9 December […]
Reducing AAA (authentication, authorization, and accounting) server deployment risk means addressing six recurring failure modes session-state loss, undersized capacity, protocol misconfiguration, incomplete rollback plans, NAS onboarding gaps, and accounting data mismatches each with a specific, testable mitigation applied before cutover. The risk register table below turns those six into a working project artifact you can […]
Community and municipal broadband operators face a real tension: budgets say start minimal, growth plans say don’t buy anything you’ll outgrow. The way through is a community broadband lean systems stack, core Authentication, Authorization, and Accounting (AAA) and billing only at launch, chosen on scale-ready architecture rather than feature count. Prioritize subscriber authentication, usage accounting, […]
AAA server rollout strategies fall into three models, big-bang (fast, higher risk), phased by subscriber segment (slower, lower risk), and parallel-run (old and new authentication, authorization, and accounting platforms live simultaneously, lowest risk) chosen based on operator scale, network complexity, and risk tolerance. Most large operators combine models, sequencing them differently per network type. Most […]
An AAA (authentication, authorization, and accounting) server installation checklist covers four categories of prerequisites that decide whether install week runs clean: network (verified port paths, DNS, NTP), security (unique shared secrets per NAS, scoped firewall rules, certificates), data (a cleaned subscriber extract mapped to the new schema), and monitoring (dashboards and alerting live before the […]
The hardest part of modernizing AAA (Authentication, Authorization, and Accounting) infrastructure is rarely the engineering. It is the meeting where finance asks why the company should spend real money on a system that, as far as anyone in the room can tell, works. “Our RADIUS server is old” is a true statement and a losing […]
To compare AAA server architectures, score six structural choices: redundancy model, protocol convergence, session and data model, scaling approach, deployment flexibility, and operational tooling. These decide how an AAA (Authentication, Authorization, and Accounting) platform behaves under load and during failure. The vendor diagram does not. Redundancy model and data model dominate the outcome. Active-active sites […]
