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1. #ALLOW USER TO SUDO WITHOUT PASSWORD HOW TO#
2. #ALLOW USER TO SUDO WITHOUT PASSWORD INSTALL#
3. #ALLOW USER TO SUDO WITHOUT PASSWORD UPDATE#
4. #ALLOW USER TO SUDO WITHOUT PASSWORD SOFTWARE#
5. #ALLOW USER TO SUDO WITHOUT PASSWORD PASSWORD#

#ALLOW USER TO SUDO WITHOUT PASSWORD INSTALL#

Hence using the default that most docker images have, programs would not install in the correct locations or not install correctly at all.

#ALLOW USER TO SUDO WITHOUT PASSWORD PASSWORD#

I don't have root privileges and when I need to install something, I do sudo apt-get install and enter my password to give me su access.įor my project, I'm trying to test install scripts as a regular user and thus these scripts use sudo and variables such as $HOME a lot ( $HOME for root is /root). For example, on my machine, I am the USER=emmanuel. Well if you're using docker in CI and need to test certain commands being run as a regular user then this is the way. Now you may be asking, why would someone want to do this? NB: You can add & echo 'pa55w0rd' | chpasswd right after the useradd to set a password.įor my use case, I need the password disabled and I need to NOT be prompted for a password when using sudo command. This will create a newuser without root privileges to run commands in the container. This can be changed by creating a new user in a Dockerfile by:Įnter fullscreen mode Exit fullscreen mode

By default, most docker images, including ubuntu:latest have USER set to root. This is trivial and actually quite common in Dockerfiles. But to appropriately test my program, I would need to be a non-root user inside the docker container. This is fine for most intent and purposes. Most docker images use user root to execute commands. I want to release this program as an open source tool and for that reason it needs testing and CI. This is to allow me to reproduce my dev environment as fast as possible on a new Ubuntu installation.

#ALLOW USER TO SUDO WITHOUT PASSWORD SOFTWARE#

Recently I wrote a pure bash menu program that has install scripts for various Ubuntu software I use. I have a particular use case that justifies this usage. Any questions or suggestions are always welcome.WARNING: This is generally considered NOT SECURE and thus do not use the methods in this article in a production container. I hope you like this quick little tutorial about using sudo without password.

#ALLOW USER TO SUDO WITHOUT PASSWORD UPDATE#

You can configure sudo in a way that only commands of your choice can be run without password.įor example, if you want the apt update and apt upgrade to be run without entering the password for sudo in Ubuntu, here’s what you need to do.Īnd then add a line like this: user_name ALL=(ALL) NOPASSWD:/usr/bin/apt update, /usr/bin/apt upgrade Run only specific sudo commands without password Thankfully, there is a solution for that as well. It provides you some options to deals with the changes.īut it’s not a good practice to run all the sudo commands without password. (Q)uit and save changes to sudoers file (DANGER!) > /etc/sudoers: syntax error near line 3 <<<Į(x)it without saving changes to sudoers file When you try to save your changes, it performs a check and notifies if there is any syntax error. The visudo tool creates a new temp file where you can edit the sudoer file using the default text editor. This is why you a dedicated tool called visudo is used for editing sudo configuration file. If you make a syntax error while editing this file, the consequences can be fatal. Now, you may edit /etc/sudoers file manually in a text editor like Vim, however, that is not advised. Of course, you have to replace the user_name in the above command with your user name.Įxit the shell and enter again and you should see the changes reflected. All you have to do is to add a line like this in this file: user_name ALL=(ALL) NOPASSWD:ALL This will open the default text editor (Nano in Ubuntu) for editing this file.

Use the following command to edit the /etc/sudoers file: sudo visudo

#ALLOW USER TO SUDO WITHOUT PASSWORD HOW TO#

Let’s see how to use sudo with no password.īut first, back up the sudoer file as a precautionary measure: sudo cp /etc/sudoers ~/sudoers.bak Execute all sudo commands without password Maybe, you should disable SSH access with password first. If you are on a server, you should be extra careful specially if you have SSH enabled. In Linux, you can change sudo configuration to run some or all command with sudo but without entering password. This is specially if you are the only user on the system or if you think some commands are okay to run without password. Some users may find it cumbersome to enter the password all the time. Which means that you’ll have to enter the password again if you run a command with sudo after fifteen minutes. The default timeout for the password is 15 minutes (in Ubuntu Linux). When you run a command with sudo, it asks for your account’s password. Most Linux distributions like Ubuntu, Debian, Fedora use the sudo mechanism to allow admin users to run commands with root privileges. Learn how to run some or all sudo commands without entering the password on Ubuntu or any other Linux distribution.