- continue to see some impact as we work towards full recovery. aws - How to run sudo command with no password? - Ask Ubuntu Enable password authentication for the Ubuntu Server in AWS From reading that file it seemed like the default ubuntu user was getting it's passwordless sudo from being a member of the admin group. I need to re-think why creating, New! It is not the same as my sudo as it doesn't work when I try it. My password contains $, but putting \ in front of the $ doesn't work. Learn more about Stack Overflow the company, and our products. Why I'm getting "Sorry, try again" then "sudo: no password was provided" whit the above method? PasswordAuthentication yes. You might want to use that if you have the password in a $VARIABLE (that you could have provision with sops for instance). To do so use: Firstly you will be asked for your current user password and after this you will be asked for the new password twice (new and retype password) as your new root password. How do I change my root password in Ubuntu? Lost My Key Pair or root Password on Ubuntu AWS Difference is that I tend make use of variables, something like: In that way I can easily use mine variable instead of sudo. 1 Answer Sorted by: 9 I have edited my sudoers file as follows: ubuntu ALL= (ALL:ALL) ALL There's no need to edit sudoers on Ubuntu EC2 instances. Back to square 1. This is pretty dangerous advice copy and paste this wrong and you'll lock yourself out of your own server. This guide has been officially tested on Ubuntu 22.04 and 20.04 LTS editions, however the steps given below are same for other Ubuntu versions and derivatives. The problem is resolved. is there a limit of speed cops can go on a high speed pursuit? Although you can set an account password policy for IAM users, that policy does not apply to your AWS account root user. My sink is not clogged but water does not drain, Schopenhauer and the 'ability to make decisions' as a metric for free will, "Pure Copyleft" Software Licenses? awsudo uses the same code as aws to find and resolve credentials and so works identically.. "Pure Copyleft" Software Licenses? 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Preview of Search and Question-Asking Powered by GenAI, Change root password of instance in Amazon EC 2 & Webmin, Unable to get password for the instance created from AMI, How do you create root credential in ~/.aws/credential file, How to reset root password when denied access to user in ubuntu ec2 instance. sudo passwd ubuntu Changing password for user ubuntu. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. They cannot do that safely from their own user account. Has these Umbrian words been really found written in Umbrian epichoric alphabet? Before you use the serial console, grant access to the console at the account level. The second colon-delimited field is the password. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What do multiple contact ratings on a relay represent? Of course, the best option is to pipe the password from a secure file. I would create my own file under /etc/sudoers.d/ directory - the file created by Amazon Cloud might be overwritten in case of any update. subtra3t 2 yr. ago IDE And what is a Turbosupercharger? There was a problem preparing your codespace, please try again. When i change the user to root as "sudo -s", it prompted [sudo] password for ubuntu. Get/Reset root password on a Linux EC2 instance | AWS re:Post Add. 4 Answers Sorted by: 11 I fixed this by doing using "sudo" for a Ubuntu AWS EC2 SSH Login: $ sudo passwd ubuntu Instead of prompting me for: " (current) UNIX password:" It prompts now for: "Enter new UNIX password:" I hope this fixes some problems with ec2 ubuntu users! I am using default ubuntu 20.04 AMI in AWS: ami-08edbb0e85d6a0a07. Please, New! To learn more, see our tips on writing great answers. Find centralized, trusted content and collaborate around the technologies you use most. Users are supposed to use the sudo command as ec2-user to obtain elevated privileges. Look in file /etc/sudoers. works identically. presto, root is unlocked and you can now su/login with root - r3wt Jun 7, 2014 at 17:03 You can read a little here. Verify that the home directory was created before continuing. Is it normal for relative humidity to increase when the attic fan turns on? 0. practices. Does anyone with w(write) permission also have the r(read) permission? How can I change elements in a matrix to a combination of other elements? Just add that to the configuration and By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I was installing brew, but it would keep asking for a password. Login. Are modern compilers passing parameters in registers instead of on the stack? Choose the Edit account name, email, and password button to change your password. Where is the password for newly created EC2 user? Are arguments that Reason is circular themselves circular and/or self refuting? You can even choose which commands a user is allowed to perform using sudo and which commands are forbidden for that user. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Is there a program to mount all of my drives automatically? 594), Stack Overflow at WeAreDevelopers World Congress in Berlin. "extremely unlikely you need to set a root password": I do not agree. Eliminative materialism eliminates itself - a familiar idea? I fixed this by doing using "sudo" for a Ubuntu AWS EC2 SSH Login: I hope this fixes some problems with ec2 ubuntu users! By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Browse other questions tagged. Support Automation Workflow (SAW) Runbook: Upload EC2 Rescue log bundle from the target instance to the specified Amazon S3 bucket, "/usr/bin/sudo must be owned by uid 0 and have the setuid bit set", The error "sudo: /etc/sudoers is world writable", Red Hat-based distributions such as, SUSE, CentOS, Amazon Linux 1, Amazon Linux 2, and RHEL, Debian-based distributions such as, Ubuntu. The majority of AWS services have also recovered, but services which host endpoints within the customer's VPCs - such as single-AZ RDS databases, ElasticCache, Redshift, etc. Just as a small note on making things not available in the history, run your command with a single space at the front of it. We are constantly facing the error: sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set however, when I do ls -l anywhere from inside /usr or /usr/bin - the entire ownership of all the file remains with ubuntu:ubuntu or other combinations that we have tried. Connect and share knowledge within a single location that is structured and easy to search. For example: derek$ sudo ls /var/log/secret [sudo] password for derek: <type derek's login password> audit.log audit.log.1 audit.log.2. After I stop NetworkManager and restart it, I still don't connect to wi-fi? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Also, every instance that uses the serial console must include at least one password-based user. Many more configurations are possible. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. It may seem the line is commented out but it's not; the directive is #includedir with leading #. Eliminative materialism eliminates itself - a familiar idea? is there a limit of speed cops can go on a high speed pursuit? In a default Ubuntu install the person who installed the OS is given "sudo" permission by default. Eliminative materialism eliminates itself - a familiar idea? Modify SSH Server Configuration. It only takes a minute to sign up. Would you publish a deeply personal essay about mental illness during PhD? Note Linux system users should not be confused with IAM users. The user account created during Ubuntu installation is associated with all sudo capabilities. 594), Stack Overflow at WeAreDevelopers World Congress in Berlin. Ubuntu and the circle of friends logo are trade marks of Canonical Limited and are used under licence. What is Mathematica's equivalent to Maple's collect with distributed option? Whereas, when I try only su, it prompts for one: How to implement security or set a password for sudo su? So I added my new user to that. 2,798 9 49 91 Add a comment 2 Answers Sorted by: 2 Most of the AMI's do not use passwords on their root user that I've noticed. If you put your password into a command-line parameter, then it will be visible to all in the output of, I figured out no need to declare aliases. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. # vim /etc/ssh/sshd_config. OverflowAI: Where Community & AI Come Together, Set sudo password differently from login one, Behind the scenes with the folks building OverflowAI (Ep. They must do that from some, Bodhi.zazen has by far the best answer; boot to recovery mode (. You will see the above usage of sudo pretty much anywhere you read a tutorial about Ubuntu on the web. Your best bet would be to detach your EBS file system and mount it on another instance so that you can go in and fix the authorized_keys files or /etc/sudoers or whatever is appropriate to resolve your problem. This command should tell you which file (s) you need to inspect: sudo grep -r NOPASSWD /etc/sudoers.d/. Unpacking "If they have a question for the lawyers, they've got to go outside and the grand jurors can ask questions." rev2023.7.27.43548. 1. is there a limit of speed cops can go on a high speed pursuit? Nowhere was I asked to set password for root. The /usr/bin/sudo file must have root:root as the owner. By default, the root account is accessed by sudo. -k means to ignore cached credentials to force sudo awsudo will prompt you for your MFA code when necessary. How do I gain admin access without a root password and no sudoers? It is very easy to recover forgotten sudo user password in Ubuntu from the "rescue" or "single user" mode. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Not having a root password makes brute force attacks on the root account impossible: this is relevant if you allow login over SSH. When in doubt, invoke passwd and set a brand new password for your regular user. Connect and share knowledge within a single location that is structured and easy to search. How to handle repondents mistakes in skip questions? If you want newuser to be allowed to sudo, then you'll have to also edit /etc/sudoers to add a line such as: To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Step 3: Find the line containing " PasswordAuthentication" parameter and change its value from "no" to "yes". It's a good security principle not to stay as a superuser for longer than necessary, just to lessen the possibility of accidentally causing some damage to the system (without it, you can only damage files your user owns). Login AWS EC2 Instance (Ubuntu 18.04). Thanks for contributing an answer to Stack Overflow! So how could I run sudo with password in one command line, or is there any other method to do this? Is it normal for relative humidity to increase when the attic fan turns on? I found that the most straight forward thing to do, in order to easily replicate this behavior across multiple servers, was the following: then for every user that needs sudo access WITH a password: and for every user that needs sudo access WITH NO password: (on older versions of ubuntu, you may need to): Edit: You may have to add the admin group as I don't think it exists by default. How to set up passwordless SSH access for root user, Default sudo settings did not require password, User in admin group still being prompted for password to sudo, Editing sudoers.d to allow www-data run a specific file, How to give passwordless sudo through automated script. Share Follow answered Feb 8, 2019 at 5:16 essxiv 431 1 4 15 WW1 soldier in WW2 : how would he get caught? rev2023.7.27.43548. To correct these errors, use the EC2 serial console or a user data script. Why do I receive errors when I run Zypper commands on my EC2 SLES instance? Were all of the "good" terminators played by Arnold Schwarzenegger completely separate machines? I guess I am the sysadmin. To edit this file you must run sudo visudo and add: Connect and share knowledge within a single location that is structured and easy to search. Note to self: It's a convention to move less restrictive permissions lower in the stack. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. This is for consistent behavior. From there, you'll do the usual ssh [email protected] -i path/to/your_key.pem. referenced by source_profile. So I tried the following : After changing password when I try to sudo su, it doesnt asks for password. Were all of the "good" terminators played by Arnold Schwarzenegger completely separate machines? This is remembered for a few minutes so if you have a few tasks to do with sudo it will only ask you for your password on the first. Short answer without using any editor (tested on bash, very risky to execute on remote hosts). To see all available qualifiers, see our documentation. Also, sudo has to be configured to use the target user's password instead of the user who's running the command's password. If you don't have root password, then use a live distro to do what is described above. is there a limit of speed cops can go on a high speed pursuit? You might want to include a warning about that in your answer. New! Why is the expansion ratio of the nozzle of the 2nd stage larger than the expansion ratio of the nozzle of the 1st stage of a rocket? Choose Actions, Instance State, Stop. Reset Sudo Password in Ubuntu 22.04 / 20.04 LTS This is an important security best practise. How do I fix this? amazon-ec2; sudo. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Asking for help, clarification, or responding to other answers. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Which has the expected contents. 1 podoxi3819 2 yr. ago The user password for the IDE, not my login to the IDE but the actual password for the user "Ubuntu", I am trying to get sudo privileges, I've done it before I just forget how. Your best bet would be to detach your EBS file system and mount it on another instance so that you can go in and fix the authorized_keys files or /etc/sudoers or whatever is appropriate to resolve your problem. You could also configure sudo with visudo to allow you user to use make as sudo without password. How to execute 'su(switch user)' command without prompting for a password? I mainly make use of these for personal computers of others, that I have to maintain. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The best answers are voted up and rise to the top, Not the answer you're looking for? 5. How does sudo remember you already entered root's password? sudo-like utility to manage AWS credentials. OverflowAI: Where Community & AI Come Together. Type in your current password and hit Enter. This command should tell you which file(s) you need to inspect: Comment it out (# ubuntu ALL=). this lameass website won't let me answer, but the correct answer is: sudo usermod root -p password; sudo passwd root; then enter the new password. That is what SSH is for. I ran your command $ sudo passwd root and it worked perfectly. When you make an install or some other operation, it still asks the password but you know it now. What mathematical topics are important for succeeding in an undergrad PDE course? Hi @chrisputnam9 yeah you can replicate it. An alternative is to switch to the root user and then run the passwd command to change the root password. Connect and share knowledge within a single location that is structured and easy to search. Asking for help, clarification, or responding to other answers. What do multiple contact ratings on a relay represent? Which also didn't work. Super User is a question and answer site for computer enthusiasts and power users. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Logout. I tried my login password (lets say it is "hello") and some incorrect passwords. passwd command varies from system to system. Learn more about Stack Overflow the company, and our products. It is usually your personal login password. Plumbing inspection passed but pressure drops to zero overnight. Switch to the root user with the command: sudo -i. Can you have ChatGPT 4 "explain" how it generated an answer? Is it unusual for a host country to inform a foreign politician about sensitive topics to be avoid in their speech? What's the current SU password on version 15.04? Behind the scenes with the folks building OverflowAI (Ep. You can allow password authentication and root login for your instance. The Journey of an Electromagnetic Wave Exiting a Router. For example, the below will safely pipe your password to the sudo command, without retaining a history of your password. I resolved the issue by one of the two alternatives: Try sudo passwd ubuntu to set a new password. You should edit this file using visudo. Were all of the "good" terminators played by Arnold Schwarzenegger completely separate machines? Not the answer you're looking for? How to help my stubborn colleague learn new ways of coding? Connect via ssh. Disable NOPASSWD sudo access for ubuntu user on an EC2 instance and keep it permanent. That is the history in memory or "~/.bash_history" file. I've sometimes done things like this, expecting the command to run for a long time, but something goes wrong and it terminates immediately; the sleep lets me kill the command before the system shuts down. ~/.bashrc" or logoff then login. The best answers are voted up and rise to the top, Not the answer you're looking for? WW1 soldier in WW2 : how would he get caught? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Not the answer you're looking for? Before you change something, make sure your regular user has a valid nonempty password. Making statements based on opinion; back them up with references or personal experience. Have an EC2 instance. It won't ask the old password, just type and retype the new one. For more information, see IAM users in the IAM User Guide. Step 2: Open the sshd_config file. I have an ubuntu instance on AWS. If you want to run commands from your terminal interactively as root do it as follows: If just want to run a single command do it as: You will not be prompted for password in any of these scenario. need to add that to $PATH: Configure aws if you haven't already, substituting your own credentials and How to run sudo command with no password? sudo - one user does not need to type password. This helps security. You might a section like this to ~/.aws/config The best answers are voted up and rise to the top, Not the answer you're looking for? Making statements based on opinion; back them up with references or personal experience. Note: If you receive a syntax error, see I edited the sudoers file on my EC2 instance and now I'm receiving syntax errors when trying to run sudo commands. The procedure given in the article you linked does not have you set a password, so there is no password. This change won't make the password prompt appear again. And what is a Turbosupercharger? Also it is my personal laptop. $ sudo adduser new_user. For some reason this causes history to ignore it. All rights reserved. You could use sudo for commands that require root privileges in Ubuntu terminal. For example, the below will safely pipe your password to the sudo command, without Making statements based on opinion; back them up with references or personal experience. Note, I've found that method doesn't work on an older version of sudo, specifically "Sudo version 1.6.7p5": Where as this method does work on older and new versions sudo: If you want to take more care, you could make a script, change the permissions of the file so only root can read and edit and then just run it. New! Can navigate through directories. After getting ssh login, I was able to change to root password with sudo su command. Looks like you're going to gitmo! However, I'm thinking using this for scripting purposes, so I'll keep it at the top of all my scripts for best security practices. If I allow permissions to an application using UAC in Windows, can it hack my personal files or data? However you can enable the root account and set a password for it. When I try my login password I get:hello is not in the sudoers file. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. amazon ec2 - Disable NOPASSWD sudo access for ubuntu user on an EC2 The mfa_serial option should correspond to an MFA device in the account referenced by source_profile.. sign in Better to save the password to a file and use < to redirect from the file into sudo. Attach the same instance to the temporary instance on /dev/xvdf1 . OverflowAI: Where Community & AI Come Together, RootSudo - Community Ubuntu Documentation, Behind the scenes with the folks building OverflowAI (Ep. rev2023.7.27.43548. i want to build a project and failed because it requires root permission. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. When I try incorrect passwords I get:Sorry, try again. Amazon EC2 is asking for root password in SSH - Server Fault Any chance you set one - maybe via some process you ran? Single Predicate Check Constraint Gives Constant Scan but Two Predicate Constraint does not. What is the use of explicitly specifying if a function is recursive or not? Many more configurations are possible. After I stop NetworkManager and restart it, I still don't connect to wi-fi? On what basis do some translations render hypostasis in Hebrews 1:3 as "substance? sudo aws ubuntu 20.04 ami requires password Ask Question Asked 1 year, 7 months ago Modified 8 months ago Viewed 2k times Part of AWS Collective 0 I am using default ubuntu 20.04 AMI in AWS: ami-08edbb0e85d6a0a07 When I type sudo it requires a password. Get/Reset root password on a Linux EC2 instance. Learn more about Stack Overflow the company, and our products. 2023, Amazon Web Services, Inc. or its affiliates. Join two objects with perfect edge-flow at any stage of modelling? After creating your file in /etc/sudoers.d, add this entry. What is the default root password? - Ask Ubuntu The --user option asks pip to install to your home directory, so you might Sorry, I made a mistake. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. This allows the owner and group to read the file, and it forbids anyone from writing to the file. Learn more about Stack Overflow the company, and our products. for each account, substituting your own account number and role name: Now you can use the -u PROFILE_NAME option to have awsudo assume that role, Work fast with our official CLI. Note: If you add the new_user to an Ubuntu instance, then include the --disabled-password option to avoid adding a password to the new account: $ sudo adduser new_user --disabled . What is it? That configured on /etc/cloud/cloud.cfg . rev2023.7.27.43548. Amazon EC2 prompt password when sudo - Super User 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Set password for root on virtualbox ubuntu, Undocumented default values for sudoers' env_keep variable, Adding group permissions with sudoers with NOPASSWD still prompting for password, sudo sending annoying alerts: issue with defaults entries, /etc/sudoers set user to have general sudo use, with no password prompt for only one commands, Visudo rule not working for service restart, Trying to understand the security of a default Mint installation, "Sibi quisque nunc nominet eos quibus scit et vinum male credi et sermonem bene". In the end I just hit return without inserting anything and it worked. How to escape password in plink sudo command? How common is it for US universities to ask a postdoc to bring their own laptop computer etc.? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To learn more, see our tips on writing great answers. There is no need for them to remember a root password, as they use their own password. New! A minor simplification: Your answer could be improved with additional supporting information. Do the 2.5th and 97.5th percentile of the theoretical sampling distribution of a statistic always contain the true population parameter. @Darren DeHaven : Could you please explain how this become answer for the question asked here? Behind the scenes with the folks building OverflowAI (Ep. Why is an arrow pointing through a glass of water only flipped vertically but not horizontally? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How do I create a user and add an SSH key on an EC2 instance? Okay, I have discovered the answer so may as well put it here for completeness. See this answer for info how to get access to your filesystem to fix things: Check /etc/passwd. I don't remember ever having one or setting one. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Or maybe you were doing a presentation and accidentally flashed your What CarlF said sounds better, but if one command fails, the computer will still be running with superuser privileges. As ec2 doesn't offer ubuntu password, it login with pem file. For example: This can be altered by policy files such as /etc/sudoers. Instead you are given the ability to perform tasks with superuser privileges using sudo. "Sibi quisque nunc nominet eos quibus scit et vinum male credi et sermonem bene". While you can create a password for the root account allowing you to log in as root with su, there are some distinct benefits to using sudo. 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