In the tutorial you should install mariadb-server in place of mysql-server. sudo apt purge mysql* sudo apt purge mariadb* sudo apt autoremove sudo apt autoclean Check if still something in the system : dpkg -l | grep -e mysql -e mariadb if the list is empty then install mariadb server : sudo apt install mariadb-server Now try to check status on stop and start the database : Status after install : sudo systemctl status mysql.service ● mariadb.service - MariaDB database server Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled) Active: active (running) since Wed 2018-03-21 16:08:49 CET; 2min 1s ago Main PID: 15699 (mysqld) Status: "Taking your SQL requests now..." CGroup: /system.slice/mariadb.service └─15699 /usr/sbin/mysqld .../.. Check the PID : sudo more /var/run/mysqld/mysqld.pid 15699 Stop the database : su...
When building or consuming RESTful APIs, understanding HTTP response status codes is essential. These codes tell the client whether a request was successful, failed, or needs additional action. In this guide, we break down the most commonly used status codes in REST APIs with simple explanations and real-world usage examples. ⭐ What Are HTTP Status Codes? HTTP status codes are standardized responses sent by a server when processing an API request. They are grouped into five categories: 1xx – Informational 2xx – Successful 3xx – Redirection 4xx – Client Errors 5xx – Server Errors For REST APIs, the 2xx , 4xx , and 5xx groups are most important. ✅ 1. Success Status Codes (2xx) These indicate that the request was successfully received and processed. 200 OK The most common success response. Used when a request is successful and returns data. Example: Returning a list of products from /api/products . 201 Created Used when a new resource is created suc...
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