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Databases & Data · Security · High Availability & Reliability

Install and secure MongoDB with authentication, TLS and backups

Deploy a three-member MongoDB Community Server 8.2 replica set on Ubuntu 24.04 with TLS/X.509 member identity, SCRAM least privilege, majority-aware clients and a full mongodump/oplog isolated restore drill.
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danger300 minadvanced11 stepsMongoDB Community Server

Databases & Data · Security

Install and configure PostgreSQL on Ubuntu

Install PostgreSQL, create a least-privilege role and database, optionally enable restricted TLS network access, validate authentication order, and prove recovery readiness.
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caution45 minintermediate13 stepsUbuntu Server