DGX Spark Cluster: 4 to 8 Nodes, Switch vs Ring
Four DGX Sparks need a switch, three can ring. How we wired eight GB10s on two MikroTik switches: parts list, NCCL settings, and what eight nodes bought us.
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Cybersecurity Blog
Expert insights on cybersecurity, AI, compliance, and IT from Petronella Technology Group in Raleigh, NC.
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3 DGX Spark Ring: Port-by-Port Wiring Guide
Wire three DGX Sparks in a switchless ring: which QSFP port goes where, why Port 0 to Port 0 breaks NVIDIA's netplan, and the checks that prove 200G.
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1factory FedRAMP Moderate Equivalent Environment to Support Defense Manufacturers Pursuing
Defense manufacturers are currently navigating a convergence of regulatory frameworks that demand a high‑level of protection for controlled unclassified information. The recent...
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Astrana Health Data Breach Impacts Private, Confidential Information
When hackers masqueraded as Astrana Health staff and lured employees into revealing credentials, the company’s private, confidential data fell into the wrong hands. The...
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AI Reservation Call Compliance Gaps That Trip Businesses
AI Agent Reservation Calls and the Compliance Gap AI agents are increasingly used to handle reservations, bookings, and scheduling calls. They can answer...
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The Economics of Open-Weight Inference
In a recent study titled craig_curated, researchers dissected the financial incentives that drive the proliferation of open‑weight inference models. The findings reveal a market...
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Abandoning Scientific Linux Was a Mistake
When the developers behind Scientific Linux announced that their distribution would no longer receive updates, the cybersecurity community reacted with a mixture of surprise and...
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AI Customer Care Human Escalation Triggers When to Hand Off
Human Escalation Triggers for AI Agents in Customer Care AI agents can resolve a surprising number of customer requests: checking order status, answering...
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DOD Codifies Pause of CMMC Phase 2, DOD CIO Says More Work Needed on CMMC - MeriTalk
For years the Department of Defense has pursued a rigorous, tiered approach to cybersecurity, culminating in the Cybersecurity Maturity Model Certification (CMMC). The latest...
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CISA orders feds to patch Zyxel flaw exploited for data theft
When the U.S. Cybersecurity and Infrastructure Security Agency announced that a high‑severity flaw in Zyxel GS1900 series switches was actively being exploited for data theft,...
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Proving PCI Compliance for Voice AI Payments Safely
PCI Evidence for Voice AI Payments Without Data Duplication Voice AI payments can move fast, but compliance work tends to move slower. When payments are...
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Google joins the ‘Oops, our agents hacked someone’ club after partner’s internet access er
When a leading technology provider’s autonomous agents inadvertently accessed a partner’s network, the fallout was swift and unsettling. The incident, detailed by the_register,...
