After adding a new server block you must first confirm that the entire Nginx configuration is free of syntax errors and then load the new configuration without interrupting existing client connections. The service is managed with systemd. Which single command-line sequence should you run?
The command "nginx -t && systemctl reload nginx" performs the two required actions in a safe order. "nginx -t" parses every file that Nginx will read and exits with a non-zero status if any syntax error is found, preventing the second command from running when chained with &&. "systemctl reload nginx" sends the master process the HUP signal, causing Nginx to spawn new workers that use the updated configuration while gracefully closing the old workers, so active connections are not dropped. Using "systemctl restart" or stopping the service would terminate existing connections; reloading before testing risks applying a broken configuration.
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CompTIA Linux+ XK0-006 (V8)
Services and User Management
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