As a result of the WannaCrypt ransomware threat, we disabled the SMB1 protocol in our Windows Active-Directory environment. After the change, users were not able to login to Linux-Systems using their Windows AD account.
Also joining new systems into the Active-Directory domain does not work anymore and fails with the error
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Samba-3.x with Winbind enrolled into a Windows AD domain
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