systemd · easy · solved in-browser (no VM needed) · 3 tiered hints
Write the drop-in /etc/systemd/system/web.service.d/limits.conf that constrains web.service. Include a [Service] section setting CPUQuota=50%, MemoryMax=512M, and TasksMax=100. (Authored config, graded structurally — the engine isn't run here.)
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