May 2, 2024
Learn how to use the systemctl command, which helps you manage your systemd service in the modern Linux operating system.
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Learn how to use the systemctl command, which helps you manage your systemd service in the modern Linux operating system.
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Learn how to start, stop, enable, disable, and mask a system service with the systemctl command.
How to use systemctl to manage Linux services
Suppose you're making configuration changes to a Linux server. Perhaps you just fired up Vim and made edits to the /etc/ssh/sshd_config file, and it's time to test your new settings. Now what?
Services such as SSH pull their settings from configuration files during the startup process. To let the service know about changes to the file, you need to restart the service so that it rereads the file. You can use the systemctl command to manage services and control when they start.
The systemctl mask and systemctl disable are both crucial commands for Linux administrators, and you must know their differences to decide w
The systemctl command interacts with systemd to manage services, also known as units, in your system by providing options like starting, sto
Configurar Servicios Del Servidor Apache Tomcat para arrancar desde los ...
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Creating A Linux Service
This tutorial is for creating a custom Linux service that will automatically run on system startup.
This service will automatically run python server on system boot. To be used in development services. Please take note that this method is not suitable for production as it uses Python’s simple http server.
STEP 1: In your computer, create a file with a .service extension. Please be sure to hide the .service file. In my case, I saved the .service extension at etc/systemd/system
ex. sample.service
The content of the sample.service file looks like this
[Unit]
Description=Sample Service description goes here
After=network.target
[Service]
Type=simple
User=root
ExecStart= -/usr/bin/bash -c ‘cd /home/Documents/pythonproject; source env/bin/activate; python manage.py runserver’
TimeoutStart=0
[Install]
WantedBy=default.target
NOTES:
-/usr/bin/bash
this access the terminal
-c
shortcut for command
‘cd /home/Documents/pythonproject; source env/bin/activate; python manage.py runserver’
The sample command in running python project in terminal
;
equivalent to ‘Enter’ key in terminal
STEP 2: Enable the systemctl service unit
In your terminal type the following
systemctl daemon-reload
systemctl enable sample.service
systemctl start sample.service
systemctl reboot -i
The last command will reboot your computer
NOTES:
sample.service
denotes the name of the service file that we created in step1
STEP 3: Check the status of the created service
To check if the created script was running as expected. type the following in your terminal
systemctl status sample.service
A message will show if the service was properly loaded and will show errors as well
NOTE: Check your firewall
Check if the port you are hosting is available on firewall
firewall-cmd --zone=public --add-port=8000/tcp --permanent
Then remember to reload the firewall for changes to take effect.
firewall-cmd --reload
Increasingly, Linux distributions are adopting or planning to adopt the systemd init system. This powerful suite of software can manage many aspects of your server, from services to mounted devices and system states. In systemd, a unit refers to any r
Systemd is an init system and system manager that is widely becoming the new standard for Linux machines. While there is considerable controversy as to whether systemd is an improvement over the init systems it is replacing, the majority of distributi