Samba cannot connect to an Exchange server when both Kerberos (GSSAPI) authentication and secure ocnnection (seal) is used. it fails with this error when I've debugging on:
> gensec_gssapi_seal_packet: GSS Wrap failed: A required input parameter
> could not be read: Unknown error
and then waits forever.
Can you please share a bit more context on this ?
Which part of Samba fails (client, server, etc.), and what is your configuration (testparm output is sufficient).
Please paste the debugging output ("log level = 10" in smb.conf) of the command or daemon you run here.
Also: what are the steps to reproduce ?
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