'Password for ec2-user on AWS Cloud9

I am trying to run $ sudo su in the terminal of AWS Cloud9. I get prompted for the password for the ec2-user. Any ideas what this might be?

Might be worth noting that prior to coming up against this issue, when trying to yum install a package, I got 'packages excluded due to repository priority protections' so I ran yum erase yum-plugin-priorities as per https://serverfault.com/questions/312472/what-does-that-mean-packages-excluded-due-to-repository-priority-protections (I'm fairly sure I had to do that with sudo but wasn't prompted for the password).



Solution 1:[1]

First you need to set your password using command

$ sudo passwd ec2-user

Then you can use the new password where ever its required

Solution 2:[2]

I ran into the same problem which trying to install homebrew on my ec2@Cloud9 Env.

When requested for password, I didn't place any let the program wait for a while after which I could see the package homebrew got installed.

Solution 3:[3]

In the cloud9 (terminal) you have to change the users password with:

$ sudo passwd ec2-user
Changing password for user ec2-user.
New password: 
Retype new password: 
passwd: all authentication tokens updated successfully.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 yogesh cl
Solution 2 Ravikumar Swaminathan
Solution 3 Felix