Service-provider Layer 2 VPN terminology can make several technologies look interchangeable when they solve different problems. A point-to-point pseudowire, a BGP-signaled Layer 2 VPN, VPLS, […]
Certifications
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Juniper JN0-664: Junos MPLS L3VPN Troubleshooting
MPLS Layer 3 VPN failures are easiest to troubleshoot when the engineer follows the route instead of jumping between commands. A customer prefix has to […]
EC-Council 212-89: Incident Triage and Prioritization
Incident triage is the point where raw security evidence becomes an operational decision. A responder has to decide whether an event is real, how far […]
EC-Council 212-89: Forensic Readiness Before an Incident
Forensic readiness means preparing an organization to collect, preserve, and interpret useful evidence before an incident forces that work to happen under pressure. The current […]
EC-Council 312-38: Defense in Depth for Enterprise Networks
Defense in depth is the deliberate use of independent security layers so that one failed or bypassed control does not expose the entire enterprise. The […]
EC-Council 312-38: Network Attack Surface Management
Network attack surface management is the ongoing process of identifying the systems, services, identities, and trust paths that can be reached or abused, then reducing […]
EC-Council 312-39: How SOC Analysts Triage Alerts
A security alert is a request for analyst attention, not proof of compromise. SOC triage turns that request into a defensible decision: false positive, benign […]
EC-Council 312-39: Threat Intelligence in the SOC
Threat intelligence is useful in a SOC when it improves a decision: whether an alert is likely to matter, what related activity to search for, […]
EC-Council 312-50: Ethical Hacking Engagement Lifecycle
An ethical hacking engagement is authorized security testing with a defined scope, rules, evidence requirements, and reporting process. The distinction between ethical testing and unauthorized […]
EC-Council 312-50: Using AI in Ethical Hacking
EC-Council currently markets Certified Ethical Hacker as CEH AI while also stating that the program remains Version 13. The current CEH v13 / CEH AI […]
EC-Council 712-50: Security Metrics That Matter to CISOs
A security dashboard can contain hundreds of numbers and still fail the executive team. The problem is usually not a shortage of telemetry. It is […]
EC-Council 712-50: Cybersecurity Vendor Risk for CISOs
Modern organizations inherit risk through cloud providers, SaaS platforms, payment processors, managed security services, software suppliers, contractors, data processors, and dozens of less visible dependencies. […]
Splunk SPLK-1002: Writing Faster SPL Searches
Slow SPL is often blamed on the search language when the real problem is the amount of data a search asks Splunk to read, transform, […]
Splunk SPLK-1002: How Splunk Knowledge Objects Work
Splunk becomes more useful when users stop treating every search as a one-off expression and start building a shared semantic layer. Knowledge objects give names, […]
Splunk SPLK-1003: Indexing Pipeline Troubleshooting
When data is missing in Splunk, “the indexer is broken” is rarely a sufficient diagnosis. An event travels through a chain of collection, forwarding, parsing, […]