Will depend on a lot of thing....
You can do wifi pentest, like trying to brute force WPA, but it take time and you might not find the pass...
Social engineering would be more efficient in this case.
If wifi is deactivated and you want to hack the website then it's web pentesting. You have to search for vulnerability... If you have no idea of pentesting methodology or you don't know the common vulnerability then go learn all that. Learn how a website is construct, how it works, then what are the most common vulnerability (OWASP)... When you have the theory you can put that in practice, you can begin by training with tryhackme or root-me.org or hackthebox when you think you are ready go attack "real" website.
Hacking is not like in movie... You don't have one specific way of doing, you have to dig to find a way in, and hacking need some technical skill or you can do social engineering but even in this case you need a minimum of technical capability..
Your question made me think you don't have knowledge in hacking or in web or in system/network/development because if you have knowledge about those things then you know hacking is not an "plug and play" thing...
(November 22, 2022, 09:11 AM)RachelDare Wrote: Found this, hope this helps.
https://medium.com/@thetimeloops/how-to-hack-your-school-server-over-wifi-6a876c8606f4
That's a useless tutorial ! No explanation of anything... They just go through some step... And to do what they do you need to already be on the network, you need to know nmap, the server must be a windows and must be vulnerable to the exploit they choose, etc. But they doesn't explain anything....