Hi I'm Nikunj Vasava

  To use and get comfortable with Linux, you need to learn Linux commands. Most of things in Linux is done by terminal. So you need to know some commands of Linux to work Linux terminal. Here in this blog I have find some commands that is very useful in DevOps area as per my perspective.  So here, In this blog I have figured out some Linux commands. This commands are very useful when you interact with Linux terminal to get your work done. In DevOps job, We need to deal with configuration, solving errors, maintenance etc.. .Therefor we have to know this useful Linux commands to automate process and get our work easier. ➤      Widely use Linux commands To find the description of each Linux commands in terminal                man command-name To add-user / add-group in system               sudo adduser user-name To change ownership of file       ...

In part one we have seen how to change .Pem file using session manager, Now in this part we are going to use Automation document to change the key-pair and get access to your AWS instance. This will replace the old key with new key-pair and you can connect to your instance. This is automation technique. So we don't need to do much things, all the things is done by AWS by automation document called Reset-Access . This is useful when your instance is ebs backed . This automation technique is also in the System Manager so you need to attach role to instance, So we can run Automation document on the instance whose key-pair is lost. If you haven't attach the System Manager role to AWS instance then this can be done using   how to connect AWS instance when you lost .Pem file. After attaching the IAM role to instance follow below steps and regain key-pair.Now follow below step to reset .Pem file. Step : - 1    Open System Manager and select the Automation under the Actio...