Tech Docs
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Learn how to use Linux ethtool to inspect Ethernet speed, duplex, auto-negotiation, driver information, NIC statistics, and hardware-level link status.
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Armv8-M Architecture Fundamentals explains what is actually happening inside an Arm Cortex-M processor when software tells a microcontroller to perform a task. At the simplest level, Armv8-M is a set of architectural rules defining the processor’s registers, instruction set, memory system, operating modes, exceptions, interrupts and other behaviors that software can depend on. Processors such…
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An ASIC miner’s power supply unit (PSU) converts incoming electrical power into the regulated outputs its hashboards and controller need. When that conversion fails, the miner may shut down, reboot repeatedly or stop hashing. Heat is a common stressor. Blocked airflow, failed fans and high inlet temperatures can accelerate wear in capacitors, semiconductors and other…
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PPLNS means Pay Per Last N Shares. It is a Bitcoin mining-pool payout method that rewards miners based on qualifying work submitted during a recent share window when the pool finds a block. Unlike PPS mining, PPLNS does not guarantee a fixed payment for each accepted share. When the pool finds a block, the reward…
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Why industrial controllers, HMIs, PLCs and other OT devices should stay off the public internet—and how segmentation, VPNs and jump hosts reduce physical-world cyber risk.
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PPS means Pay Per Share. Instead of waiting for your mining pool to find a Bitcoin block, the pool pays you for the valid work your miner submits. A pool share is proof that your ASIC is hashing correctly at the difficulty requested by the pool. Think of PPS as turning expected mining revenue into…
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Learn reliable Python ProcessPoolExecutor logging with QueueHandler, QueueListener, manager queues, exception handling, and shutdown.
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Standard Chartered has launched institutional custody for Ripple USD, or RLUSD, on the XRP Ledger through its Dubai International Financial Centre branch, giving eligible institutional clients a bank-operated place to hold the dollar-pegged stablecoin. The bank said on October 12 that the custody service is now live through its DFSA-regulated DIFC branch. The announcement is…
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Learn IPv6 ACL syntax, prefix filtering, interface direction, ICMPv6 exceptions, dual-stack security, and verification.
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Learn Windows SMB file sharing, share versus NTFS permissions, UNC paths, PowerShell auditing, troubleshooting, and least-privilege access.
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Explore the earliest recorded debt crises, clay-tablet loans, grain and silver accounting, and royal debt forgiveness in ancient Mesopotamia.
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A neutral history lesson on inflation, money supply, CPI, purchasing power, nominal versus real wages, and the causes of rising prices.
