Make sysctl Changes Persistent on Linux (/etc/sysctl.d)
Apply persistent kernel tuning on Linux: sysctl -w, /etc/sysctl.d/*.conf, sysctl --system, common net.ipv4 settings, and verify after reboot.
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PostgreSQL Install and Secure Setup on Linux (Roles, pg_hba.conf, TLS)
Install PostgreSQL on Linux and secure it: roles, listen addresses, pg_hba.conf rules, TLS, baseline tuning, and backup verification.
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ViciDial MySQL Performance Tuning: Buffer Pool, Connections and Slow Queries
Tune MySQL for ViciDial: measure first, size the InnoDB buffer pool, manage connections, use the slow query log,…
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