November 2022

sudo command not working

How to Repair a Corrupted sudoers File on an AWS EC2 Instance (Without Detaching the Root Volume)

A corrupted sudoers file can prevent users from running any sudo command on an Amazon EC2 instance. This usually happens after an incorrect modification to /etc/sudoers or a file under /etc/sudoers.d/. When the configuration becomes invalid, administrative access through sudo stops working, making server management difficult. Most recovery guides recommend detaching the root EBS volume […]

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