Passwordless sudo

To set up passwordless sudo for a specific user, you need to modify the sudoers file. It is highly recommended to use the visudo command, as it checks for syntax errors before saving, preventing you from being locked out of administrative access.

Follow these steps:

1. Open the sudoers file for editing: Run the following command in your terminal: ```shell script sudo visudo

   2. **Add the passwordless rule:**
      Scroll to the end of the file and add the following line, replacing `username` with your actual Linux username:
   ```plain text
   username ALL=(ALL) NOPASSWD: ALL
   

2. Save and Exit:

3. If visudo opened Nano (the default for many systems): Press Ctrl + O, then Enter to save, and Ctrl + X to exit.
4. If visudo opened Vi/Vim: Type :wq and press Enter.

Alternative: Enable for a Group¶

If you want all users in the sudo group (common on Ubuntu/Debian) or the wheel group (common on CentOS/Fedora) to have passwordless access, find the line for that group and modify it:

• For Ubuntu/Debian: Change: ```plain text %sudo ALL=(ALL:ALL) ALL

    To:
  ```plain text
  %sudo   ALL=(ALL:ALL) NOPASSWD: ALL
  

• For CentOS/Fedora: Change: ```plain text %wheel ALL=(ALL) ALL

    To:
  ```plain text
  %wheel  ALL=(ALL)       NOPASSWD: ALL
  

Security Warning¶

Enabling passwordless sudo reduces the security of your system. Any process running under your user account will be able to execute commands with root privileges without verification. Ensure your account is protected by other means, such as SSH keys if accessing remotely.