Journey of an IT Architect
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DICOM data encoding
ReadDICOM is a standard for medical imaging exchanges, originally in radiology, but later expanded into other departments where mass imaging data are acquired, such as…
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Linux Admin Basics 3 of 3 – text processing, regex, sed & awk
ReadMost of the text processing can be processed by awk and sed. Sed is non-interactive stream editor that allows you to specify all editing instructions…
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cron and anacron in RedHat Linux (How logrotate works)
ReadCron and anacron We all know cron is a job scheduler. Many admin uses crontab to manage scheduled task. It is also important to know…
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Basics Terms in Linux OS
ReadThese are the things quite confusing or abstract while I was at school but now makes lots of sense after many years working with different…
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CentOS – Remove Swap safely
ReadIf the default installation has swap on, you will see it from block device list: Many installations require swap to be off for performance reasons…
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Cassandra Architecture
ReadExcerpts from Cassandra The Definitive Guide Gossip and Failure Detection Cassandra uses a gossip protocol that allows each node to keep track of state information…