PicoCTF-speeds-and-feeds

Description:

There is something on my shop network running at nc mercury.picoctf.net 16524, but I can't tell what it is. Can you?

link: https://play.picoctf.org/practice/challenge/116?category=3&page=1

Solution:

Just open the code. It shows a password check method. That method contains the password.

type on terminal
```
nc mercury.picoctf.net 16524
```
It shows something like code.
check for hint
```
What language does a CNC machine use?
```
google for answer and answer is G-code
Let's search for G-code simulator. One of them, https://ncviewer.com/
Copy code from terminal and paste there and run.
It's shows a graphics look-alike picoCTF{num3r1cal_c0ntr0l_1395ffad}

Flag: picoCTF{num3r1cal_c0ntr0l_1395ffad}