Chapter 8. Process Management
This chapter covers key concepts of processes on Linux and how to manage those processes. In this chapter, we demonstrate case examples using SSH remote login. If you haven't done SSH remote login setup yet, check the following topic pages.
- SSH Remote Login (1) – Use Key Pair Generated by Server
(you can choose one approach) - SSH Remote Login (2) – Use Key Pair Generated by Client (you can choose one approach)
- SSH Config File
- SSH Remote Login with Visual Studio Code
Once you confirm the above settings are performed, connect with the server using your terminal or VS Code.
To connect to the remote server using the terminal:
Run the command below.
ssh ssh_test
To connect to the remote server using VS Code:
Use GUI (Graphic User Interface). Open the Remote SSH extension and select the SSH host connected with the Lightsail instance.
Once the SSH remote login is established, the terminal will look like shown below.
The following topics are covered in this chapter.
- Process and Job
- Foreground and Background Jobs
- jobs and ps (Display Jobs and Processes)
- Signals
- Create, Stop and Switch Jobs
- Daemon Processes
- What Is Service on Linux?
- Systemd
- Unit File
- Systemctl Sub-Commands
- Create Custom Unit and Start at Boot
- Firewall
- UFW (Uncomplicated Firewall)
- Web Server
- Launch Apache Web Server
This chapter covers key concepts of processes on Linux and how to manage those processes. In this chapter, we demonstrate case examples using SSH remote login. If you haven't done SSH remote login setup yet, check the following topic pages.
- SSH Remote Login (1) – Use Key Pair Generated by Server (you can choose one approach)
- SSH Remote Login (2) – Use Key Pair Generated by Client (you can choose one approach)
- SSH Config File
- SSH Remote Login with Visual Studio Code
Once you confirm the above settings are performed, connect with the server using your terminal or VS Code.
To connect to the remote server using the terminal:
Run the command below.
ssh ssh_test
To connect to the remote server using VS Code:
Use GUI (Graphic User Interface). Open the Remote SSH extension and select the SSH host connected with the Lightsail instance.
Once the SSH remote login is established, the terminal will look like shown below.
The following topics are covered in this chapter.
- Process and Job
- Foreground and Background Jobs
- jobs and ps (Display Jobs and Processes)
- Signals
- Create, Stop and Switch Jobs
- Daemon Processes
- What Is Service on Linux?
- Systemd
- Unit File
- Systemctl Sub-Commands
- Create Custom Unit and Start at Boot
- Firewall
- UFW (Uncomplicated Firewall)
- Web Server
- Launch Apache Web Server
