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How to “Sudo” without password In Ubuntu

Last updated on Sep 28,2024 |

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by A.H Ezam

Introduction

Entering your password every time you run a sudo command can be time-consuming, especially when you frequently perform administrative tasks. To improve your workflow, you can configure your server to disable the password prompt for sudo commands. This guide is intended for users who manage their own servers and want to bypass the password prompt for sudo operations. The solution is particularly useful for experienced users who perform regular server maintenance. However, it should be implemented with caution as it grants elevated privileges without authentication, which could pose security risks.

Prerequisites

A web server that you can access via SSH
A basic understanding of Linux command-line operations
Administrative (root) access to the server

Step-by-step guide

Step 1: Access and log in to your web server via SSH

Open your terminal.
Connect to your server using SSH by running the following command, replacing your_server_ip with your server’s IP address:

ssh root@your_server_ip

Step 2: Open the sudoers file using visudo

In the SSH terminal, run the following command to open the sudoers file:

sudo visudo

Important Note: Always use visudo to edit the sudoers file, as it includes syntax checking to prevent configuration errors.

Step 3: Modify the sudoers file

Scroll to the bottom of the sudoers file.
Add the following line, replacing “username” with your actual username:

username ALL=(ALL) NOPASSWD: ALL

Step 4: Save and exit

Once you’ve made the necessary changes, save the file.
If you’re using the nano editor (the default for visudo), press Ctrl+X, then Y, and finally Enter to save and exit.

Reference

For more detailed instructions on accessing your server via SSH or using text file editors in the command line, refer to the following guides:

Conclusion

By following these steps, you can configure your server to bypass the password prompt for sudo commands, making your administrative tasks more efficient. However, it’s crucial to use this configuration carefully, as it grants elevated privileges without requiring a password, which could be risky if your account is compromised. Ensure that your server is secure and accessible only to trusted users.

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