How to Manage Ubuntu Linux System Services with Systemctl?


In technology, services are programs that run in the background, outside of the control and interface user / computer. They are also known as demons and are responsible for helping the rest of the system’s programs. Learn to manage Ubuntu Linux system services with Systemctl.

Services provide more security and they are crucial to the functioning of the entire operating system. These start when the computer starts up, and can respond to requests over the network or watch over the execution of system processes.

If you have a computer that has two operating systems, you can change the Grub boot order in Ubuntu Linux.

Systemd and Systemctl

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He is the administrator of all Linux services, and Systemctl it is a special command of it. This will be in charge of starting all those elements that must be loaded once the system has started. It is a set of daemons and tools designed for configuration and interaction with the Linux kernel.

Systemd is like the parent of processes, since its primary objective is to unite all distributions and basic configurations. It was created to replace the previous SysV system, going beyond just startup tasks.

In addition to the Systemctl program manager, to make your programs work faster it is recommended that you free up space on your hard drive to have more capacity.

Systemd Features

  • It has greatly improved its speed at the start time of the program. Also, activate the services through «Sockets» what is an application programming interface (API)
  • You can make registrations through «Cgroups» of all those services and programs that have been started. Systemd comes with prebuilt packages, so you can run and manage multiple daemons in parallel.

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Systemd is used in most of the programs offered Linux by default. From Fedora, Red Hat and Debian to Arch. And, with the Systemctl command in addition to providing information about the status of Systemd and handling executions, you can manage Ubuntu Linux system services with Systemctl.

Manage Ubuntu Linux system services with Systemctl

With Systemctl you can start and stop a program, reload, activate and deactivate services, among other things. To start managing Ubuntu Linux system services with Systemctl you must make sure you have it on your system.

From the internet you can search and download all the programs you need for your computer.

To do this, open the window «Terminal» and execute the command «Systemd – versionWith this you can know the version number installed on your Linux system.

Daemons or Systemctl services

  • Systemd – analyze, allows you to see the course of the system startup. In addition to its qualities like, the time it took to start, and what processes added time to this startup. To see each process individually, use the command «Systemd – analyze fault”.
  • «Systemctl list- unit- files”Is a command used to view the sections of files or units. This is done because Systemd makes use of services, mount points, and devices. Thus, with this command you can see each one and how they have worked.
  • «Systemctl list- unit- files – type = service”Is used to find out which services or daemons have been and are enabled and which others have not. It is quite similar to the previous command, but in this one the option to only show the list of services is added.

Systemd white letters

Other commands can be, «Systemctl is – active» is used to know what service is currently being executed. «Systemctl is – enable» is for the daemons that are enabled or those that start automatically with the system.

  • With «Systemctl is – failed”You will be able to know if a problem occurred at the beginning of the running of a service. If the service in fact does not work, you will receive a message on the screen with the word «Failed». In case of unknown reasons, the message will be «Unknown» or «Inactive.»

With this you already know that Systemd has a large number of commands, even others that fulfill more complex functions. You can even reboot, hibernate the system and even monitor the flow of energy consumed. This is a great start for you to manage system services Ubuntu Linux with Systemctl.

Just as the Systemctl program allows you to start and stop a program, you can also program your Linux operating system to schedule power on and off.

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