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Andrax Pentester operates as an autonomous cybersecurity laboratory under the SentinelReign research umbrella.

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Reconnaissance — Andrax Pentester

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Reconnaissance

Published work tagged Reconnaissance.

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SSL/TLS Certificates Explained: Chain, SAN & Expiry (2026)

A TLS certificate binds a domain name to a public key. Here is how I read one, trace its chain, fix common errors, and check CSRs and CAA records.

Syed Zada Abrar · 11 min