Tag: technology
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Networking basics 2 of 3 – Layer 4 and common network configurations
ReadTransport Layer Transport Layer handles multiplexing & de-multiplexing through ports. Port is more or less a virtual concept. Source port is usually ephemeral. Two dominant…
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Storage Nitty-Gritty 5 of 5 – Replication
ReadReplication Terms PIT (point in time) replica – snapshot of the source at some specific timestamp;Continuous Replica – always in-sync with the production data;Recoverability –…
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Networking Basics 1 of 3 – Layer 1 through Layer 3
ReadWhat layer model works the best? Back in university my textbook was based on OSI 7-layer model. It is rigorously defined and often used in…
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Clean up Git repository
ReadA BitBucket repo has a hard limit of 2GB in size, and soft limit of 1GB. This is not expandable as per Bitbucket and contributors will start receiving…
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Storage Nitty-Gritty 4 of 5 – Backup and Archive Solutions
ReadBusiness Continuity Information Availability IA = MTBF/(MTBF+MTTR), where* MTBF (Mean Time Between Failure) – average time available for a system or component to perform its…
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Cryptography basics 2 of 2
ReadMy previous post outlines several core concepts around cryptography, such as asymmetric key encryption, digital certificate, the encoding formats and relevant file extensions. In this…