Linux is an operating system that has grown in popularity over the years. It is free, open-source, and widely used worldwide. One of the benefits of the Linux operating system is its flexibility and the range of tools it offers to help you manage your system. The Linux command line is particularly powerful and provides quick access to system services.
In this article, we will walk through the list of Linux services and how to manage them with examples.
What are services in Linux?
Services in Linux are software components that run in the background and perform specific tasks on the system. They are also called daemons or background processes. These services can be system services that start at boot time and run as long as the system is running, or user services that start when the user logs in and stop when the user logs out. Services can be started, stopped, or restarted using a command-line interface.
List of Services in Linux
- Systemd Service
Systemd is a system and service manager for Linux. It is used to manage system services and daemons. It is the default service manager in most Linux distributions. Systemd is responsible for starting and stopping services on the system, setting up logging and handling system initialization.
Examples:
To start a service:
systemctl start service_name
To stop a service:
systemctl stop service_name
To restart a service:
systemctl restart service_name
- Apache Web Server
Apache is a popular web server that is used to serve web pages over the Internet. It is a free, open-source server that is easy to configure and customize. Apache can run on various platforms including Linux, Windows, and macOS.
Examples:
To start the Apache service:
systemctl start httpd
To stop the Apache service:
systemctl stop httpd
To restart the Apache service:
systemctl restart httpd
- MySQL Database Server
MySQL is a popular open-source relational database management system. It is used to store data and retrieve it when needed. MySQL is one of the most widely used databases on the Internet and is commonly used in web applications.
Examples:
To start the MySQL service:
systemctl start mysqld
To stop the MySQL service:
systemctl stop mysqld
To restart the MySQL service:
systemctl restart mysqld
- Samba
Samba is a free, open-source software that provides file and print services to Microsoft Windows and UNIX systems. Samba allows Linux to act as a Windows file and print server, providing complete interoperability between Linux and Windows environments. Samba can be used to share files, printers, and resources between Linux and Windows systems.
Examples:
To start the Samba service:
systemctl start smb
To stop the Samba service:
systemctl stop smb
To restart the Samba service:
systemctl restart smb
- SSH Server
SSH (Secure Shell) is a secure network protocol used to connect to Linux servers over the Internet. SSH is used to remotely access Linux systems and execute commands on them. The SSH service runs on the Linux server and listens for incoming connections.
Examples:
To start the SSH service:
systemctl start sshd
To stop the SSH service:
systemctl stop sshd
To restart the SSH service:
systemctl restart sshd
Conclusion
Linux is an operating system that provides a wide range of tools for managing services and daemons. The command line interface provides quick access to system services, making it easy to start, stop, or restart services. In this article, we have looked at some of the most common Linux services and provided examples of how to manage them. With these examples, you can easily manage the services on your Linux system and keep it running smoothly.
Systemd Service:
Systemd is not only a system and service manager for Linux, but it's also responsible for system and service configuration and management. In addition to starting and stopping services, it can also be used to monitor and control systems. It also provides utilities for system administration, such as journaling, managing system resources, and more.
To view the service status:
systemctl status service_name
To enable the service to start at boot time:
systemctl enable service_name
To disable the service from starting at boot time:
systemctl disable service_name
Apache Web Server:
Apache web server is one of the most popular web servers available. It's open-source, widely supported, and easy to use and configure. It can be used to serve static and dynamic content and support various programming languages like PHP, Python, Perl, and Ruby.
To view the version of Apache installed:
httpd -v
To view the Apache service status:
systemctl status httpd
To view active connections to the Apache server:
apachectl status
MySQL Database Server:
MySQL is a popular open-source relational database management system. It's widely used for web applications, and it's known for its performance, scalability, and ease of use.
To view the version of MySQL installed:
mysql –version
To view the MySQL service status:
systemctl status mysqld
To log in to MySQL shell:
mysql -u username -p
Samba:
Samba allows Linux to act as a Windows file and print server, providing complete interoperability between Linux and Windows environments. It's easy to configure and use, and it can be used to share files and printers between Linux and Windows systems.
To view the Samba service status:
systemctl status smb
To create a new Samba user:
smbpasswd -a username
To create a new Samba share:
[share_name]
comment = Share Comment
path = /path/to/share
browseable = yes
writable = yes
create mask = 0644
directory mask = 0755
valid users = @smbgroup
SSH Server:
SSH (Secure Shell) is a secure network protocol used to connect to Linux servers over the Internet. It's widely used by system administrators for remote access to servers.
To view the version of SSH installed:
ssh -V
To view the SSH service status:
systemctl status sshd
To configure SSH to listen on a non-default port:
Edit /etc/ssh/sshd_config and change the "Port" value to a desired value. Then restart the SSH service with the "systemctl restart sshd" command.
Conclusion:
Linux offers a variety of services that can be used to manage and control your system. By using the command line interface, you can easily manage and monitor system services, and you can automate these tasks through scripts.
Knowing how to use these services is essential for any system administrator who wants to manage Linux servers efficiently. With these tools and examples, you can easily manage services on your Linux system and keep it running smoothly.
Popular questions
-
What are services in Linux?
Services in Linux are software components that run in the background and perform specific tasks on the system. They are also called daemons or background processes and can be started, stopped, or restarted using a command-line interface. -
What is Systemd Service?
Systemd is a system and service manager for Linux. It is used to manage system services and daemons, and it's responsible for starting and stopping services on the system, setting up logging and handling system initialization. -
What is the Apache Web Server used for?
Apache is a popular web server that is used to serve web pages over the Internet. It is a free, open-source server that is easy to configure and customize. Apache can run on various platforms including Linux, Windows, and macOS. -
What is Samba used for?
Samba is a free, open-source software that provides file and print services to Microsoft Windows and UNIX systems. Samba allows Linux to act as a Windows file and print server, providing complete interoperability between Linux and Windows environments. Samba can be used to share files, printers, and resources between Linux and Windows systems. -
How can you start, stop or restart a service using the Linux command line?
To start a service, use the command "systemctl start service_name". To stop a service, use "systemctl stop service_name". To restart a service, use "systemctl restart service_name".
Tag
Lisux
