A firm grip on managing Linux Servers goes beyond just managing applications and databases. It requires being conversant with commands like apt to install applications, systemctl or service for lifecycle management, and commands such as ps, lsof, top for monitoring. This article gives a hands-on guide to monitoring and managing applications, examples include ssh, apache2, mongodb, jupyterlab, etc.
Key Concepts Explanation
Overview of Managing Softwares on Ubuntu
In Linux, package management is done through the apt command, which handles packages based on Debian (.deb). It’s used for installing, upgrading and removing software. You can install Apache Web Server and Mongodb on Ubuntu using the apt package management tool as shown below:
sudo apt update
sudo apt install apache2 mongodb
Managing Applications and Databases
With Linux, you can manage software services using the systemctl command. Systemctl is a systemd utility which is responsible for inspecting and controlling the systemd system and service manager. Here is an example of how to start Apache Web Server and Mongodb using systemctl.
sudo systemctl start apache2
sudo systemctl start mongodb
Hands-On Tasks
To put this knowledge to use, perform these tasks on your Linux machine.
- Install a software package using apt command. For instance, you can install nano editor on your Ubuntu machine. Run the following command in your terminal:
sudo apt install nano
- Manage a service through systemctl. Try stopping the Apache service using the following command:
sudo systemctl stop apache2
- Monitor your system performance using the top command. Just type the
topcommand in your terminal and it will show the real-time system information.
Conclusion
Monitoring and managing Linux servers require a good understanding of system commands. Having these skills will help you ensure optimal performance of your applications and databases. Consider engaging with the community, as it’s a good avenue to learn from others’ experiences and continually update your knowledge. Remember, practical interaction with the concepts just discussed will cement the knowledge acquired. So, ensure to practice!
Remember, practice is key to mastering Linux commands. Don’t hesitate to try out these commands and explore their options to deepen your understanding.
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