Ben Chuanlong Du's Blog

It is never too late to learn.

Manage systemd Services and Units

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. List all services names.

    service --status-all
    
  2. List all systemd units.

    systemctl
    
  3. Disable a service.

    systemctl disable service_name
    
  4. Check whether systemd is running as PID 1.

    ps --no-headers -o comm 1
    

A …

Linux Administrator Tools

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. BCC is a toolkit for creating efficient kernel tracing and manipulation programs leveraging extended Berkeley Packet Filters (eBPF).

  2. webmin, cloudmin, usermin

  3. id, adduser, gpasswd (recommended for adding/removing groups)

  4. uptime, top …

Reduce GRUB Timeout

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. Open the file /etc/default/grub with sudo permission.

    sudo vim /etc/default/grub
    
  2. Update the value assigned to GRUB_TIMEOUT to a smaller one (e.g., 3). Notice that the time …

Tips on the Redox Operating System

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Try Redox in a Virtual Machine

  1. Install VirtualBox on your machine.

  2. Download the ova file for redox using the link https://static.redox-os.org/releases/ .

  3. Double click the ova file to …