I am using AWS Linux AMI2, I added ec2-user ALL=(ALL) ALL and saved the file.
Now when I run any command with sudo it displays [sudo] password for ec2-user:
How to reset this file?
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1Does this help, over on ServerFault - serverfault.com/q/144988/267016– Chris DaviesCommented Jun 29, 2019 at 10:45
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1Can you boot with some other OS image and mount the drive/volume from your VM? Been a long time since I played with EC2, but Linode, DigitalOcean, etc provide for this with their vms....– ivanivanCommented Jun 29, 2019 at 15:07
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2 Answers
Just remove that line.
If the problem is that you don't know the password for ec2-user, then you must find some other way to get root access.
The line ec2-user ALL=(ALL) ALL means that sudo will ask for a password, because you didn't specify NOPASSWD.
answered Jun 29, 2019 at 9:20
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True, but the question is how do I do this, if sudo is not working? Commented Jul 8, 2019 at 8:48
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@ctrl-alt-delor If you are locked out, you are locked out, nothing you can do. Otherwise, find a way to get access. Boot a rescue system, mount the image to another instance, or download the disk image, modify and upload. Commented Jul 11, 2019 at 17:40
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@Yes than is the type of answer they are looking for. How to get un-locked out. Commented Jul 11, 2019 at 18:58
By default, sudo requires that a user authenticate him or herself before running a command.
This behavior can be modified via the NOPASSWD tag.
For a single user, try
USERNAME ALL=(ALL:ALL) NOPASSWD:ALL
We can also modify the syntax to allow specific commands like
USERNAME ALL= NOPASSWD: /bin/kill, /bin/ls
Suoders manual has more details covering this topic
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All very true, but how does this answer the question? Commented Jul 8, 2019 at 8:46
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