VPS and Linux

Enable IPv6 on a VPS only after checking addressing, web listeners, firewall policy, AAAA records and independent end-to-end connectivity tests.

Evaluate VPS control panels through supported systems, resource overhead, licensing scope, backup portability and the maintenance tasks you still own.

Compare VPS snapshots and backups by recovery scope, data consistency, retention and restore testing rather than assuming either label guarantees protection.

Rebuild a VPS with a tested sequence for clean infrastructure, configuration, secrets, consistent data restoration and controlled return to public traffic.

Monitor a VPS with service checks, resource pressure, useful alerts and correlated timestamps so metrics explain customer problems and guide action.

Run Docker on a VPS with clear plans for persistent data, published ports, logging, image updates and recovery beyond simply starting containers.

Decide whether to keep a database on your VPS or separate it by weighing resource contention, latency, security, recovery and operational workload.

Compare vertical and horizontal VPS scaling through capacity limits, shared state, load balancing, deployment behavior and the real cost of extra nodes.

Understand VPS swap as a limited memory safety buffer, measure paging behavior and decide when application tuning or additional RAM is the better fix.

Diagnose a full VPS disk by separating filesystem blocks, inodes and file growth, then reclaim space safely and prevent the same failure from returning.