Managing AlmaLinux 9 Services: Guide for Listing, Enabling, Disabling, and Configuring Them
In a significant shift from older init systems like SysV and Upstart, AlmaLinux 9 now uses Systemd as its default system and service manager. This change simplifies the process of managing services on the Linux distribution, with all tasks handled through the systemctl command.
To start a service immediately in AlmaLinux 9, use the command `systemctl start
To ensure a service starts automatically on boot, use the command `systemctl enable
To check the status of a service, verify whether it is running or its current state with the command `systemctl status
To restart a running service (stop then start), use `systemctl restart
Systemd also allows setting resource limits for services using `systemctl set-property`, such as limiting memory or CPU usage for containers or services.
The table below provides a summary of the most common systemctl commands and their purposes:
| Command | Purpose | Example | |-----------------------------------|-------------------------------------------|----------------------------------| | `systemctl start
After making changes to a service's configuration, you need to reload or restart the service for the changes to take effect. To list all services and their states, use `systemctl list-units --type=service`. Disabling unnecessary services helps save resources and reduce potential security risks.
- Utilizing Systemd technology on AlmaLinux 9, information about the current state of cloud-init service can be accessed with the command .
- To enhance data-and-cloud-computing security in AlmaLinux 9, the debug-shell service can be disabled for compliance purposes by typing .
- System administrators can use within Systemd to set resource limits, such as memory or CPU usage for containers or services.
