Learning Active directory exploiting

Hi i’m quite a noob in AD .
Getting the user on Active was very easy but after that i don’t know how to get the admin account . Can anyone tell like how to start from zero to advanced in learning of AD concepts and exploiting and all the tools like impacket, crackmapexec ,etc ?
Also does such types of AD machines come in OSCP ?

what does AD stand for ?

@peek said:
what does AD stand for ?

Active Directory


@mochan I checked the site thanks

I may also suggest this Explain like I’m 5: Kerberos – roguelynn