Kerberos
THEORY
CLOCK ERROR
[-] Got error while trying to request TGT: Kerberos SessionError: KRB_AP_ERR_SKEW(Clock skew too great)
It's very common (at least in HTB Boxes) error because of time zone difference timestamp header in authentication packets is getting to big. So the fix is time sync with server
Stop default automatic time sync
Sync time with server
Change time back
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