[Samba] samba 4.13.17 ubuntu 20.04

[Frank Rochlitzer]

We have the same issue with Samba 4.13.17.

For Ubuntu 20.04 with Samba 4.13.17 there seems to be only a workaround to solve the login problem:
Modifying the Local Security Policy -> Local Policies -> Security Options -> Network security:
"Configure encryption types allowed for Kerberos" Check only DES_CBC_CRC, DES_CBC_MD5 and RC4_HMAC_MD5.
 
This worked for us to login again.
 
You can find some more informations here:
https://stackoverflow.com/questions/75235829/samba-4-13-17-breaks-domain-login-with-kerberos-errors/75249164#75249164
 
Best regards
Frank