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Deprogit Blog

Insights, updates, and practical guides from our engineering team.

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Solutions • October 31, 2026 • 5 min read

DNS Cache Flushing: Architecture, Mechanics, and OS Implementations

A technical guide to DNS resolver caching: cache poisoning defenses, Negative Caching (RFC 2308), TTL expiry, and OS cache flushing commands.

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Solutions • October 31, 2026 • 5 min read

Diagnosing Slow Internet: A Step-by-Step Technical Troubleshooting Guide

A methodical engineering guide to diagnosing slow internet speeds: isolating physical layers, Wi-Fi vs Ethernet testing, gateway metrics, and MTU issues.

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October 31, 2026 • 5 min read

How to Read a Traceroute: Analyzing Hops, Latency, and Packet Loss

A masterclass in interpreting traceroute diagnostics: identifying asymmetric routing, MPLS tunnels, ICMP rate-limiting, and peering bottlenecks.

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October 31, 2026 • 5 min read

Core Command-Line Network Tools: iPerf3, MTR, tcpdump, and cURL

A hands-on guide to essential network engineering CLI tools: iPerf3 bandwidth benchmarking, MTR path profiling, tcpdump packet analysis, and cURL metrics.

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Cloud & Data Centers • October 31, 2026 • 5 min read

Cloud Deployment Models: Public, Private, Hybrid, and Direct Interconnects

A technical engineering guide comparing cloud deployment models: public multi-tenant clouds, private OpenStack/VMware, hybrid architectures, and direct interconnects.

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