Inspired by a thread on Reddit, I decided to have some fun with sudo. This could also be known as “potentially scaring the crap out of a co-worker”.
This screenshot should be self-explanatory to those of you familiar with Linux:
What the above shows is that I made a modification to the /etc/sudoers file on a server. I told sudo to, instead of using its default password prompt, use an alternative prompt when requesting the user’s password.
At 10:20pm Wednesday night, I receive a PGP encrypted e-mail from my co-worker Ralph (name changed to protect the innocent). At 10:21pm my phone rings.
It seems that he noticed the new password prompt. Here’s what his e-mail decrypted to:
Is this a joke, or did we get hacked? him@server:~$ sudo apt-get update ENTER NUCLEAR LAUNCH CODE:
I reassured him that I had changed the prompt and pointed him to the git log. =)