You are troubleshooting a custom web application that runs as myapp.service under systemd. You want to temporarily halt the service so that no new worker processes are spawned during this boot session, but you still want the service to start normally the next time the server is rebooted. Which single command accomplishes this requirement?
The systemctl stop sub-command immediately tells systemd to terminate the running unit and leaves it in the inactive state for the remainder of the current boot. Because it does not modify any enablement symlinks, the unit's startup policy is unchanged, so it will start again at the next reboot.
The other choices change different aspects of the unit:
disable removes the boot-time symlinks, so the service will not auto-start on future boots but continues to run until the next reboot.
mask links the unit file to /dev/null, preventing any manual or automatic start until it is unmasked.
kill sends a signal to the unit's processes but does not tell systemd to transition the unit to the inactive state and may be followed by an automatic restart if Restart= is set.
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What is the difference between 'stop' and 'disable' in systemctl commands?
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What happens if you use 'mask' on a systemd service?
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When would you use the 'kill' command instead of 'stop' for a systemd service?
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CompTIA Linux+ XK0-006 (V8)
Services and User Management
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