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I was recently working on a Perl script that would SSH to another server and run a sudo command on the remote server that was failing. The error that was received is below.

Error: sudo: sorry, you must have a tty to run sudo

The reason for this is an update along the way with sudo locked it down further by adding the below line to /etc/sudoers configuration file.

Defaults requiretty

To allow a remote script to login and run a command via sudo simply comment out that line as shown below.

# Commented out so remote script can login and run a command without a tty
# Defaults requiretty

I would suggest making a comment in the sudoers file along with the actual script that is running just in case there is another systems administrator that is tasked with working on this server at a later date. Now when your script runs it will not throw that error and should be able to run the remote command that was initially required.

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21 Responses to “sudo: sorry, you must have a tty to run sudo”
  1. seo tools says:

    While I don’t have much else to add to this post, I am certainly grateful that the author took the time to talk about this. I agree with most of what was talked about, and look forward to learning some more from you. Thank you.

    [Reply]

    alex Reply:

    Hello SEO Tools,

    Thanks for taking the time to leave feedback relating to the sudo article.

    Thanks.
    alex

    [Reply]

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