Samba and legacy Windows support

[Rowland penny]

On 08/10/2019 09:59, Andreas Schneider via samba-technical wrote:
> Samba with version 4.11 currently still support a lot of systems which are
> already out of support. We still get bugs to either fix support for Windows
> NT4 or OS/2. Also we know that Windows Server 2003 with Active Directory is
> still deployed.
>
> In order to remove support for those platforms which are very long EOL, we
> should try to make announcements when we plan to remove support.
>
> ## Steps planned
>
> With Samba 4.12 we plan to disable SMB1 by default and then remove support for
> it in Samba 4.13 or 4.14. This means end of 2020 or beginning of 2021.
>
> If we remove support for SMB1, we could also remove support for NTLMv1 and
> Kerberos support for DES, 3DES and maybe RC4. Already on Fedora 31 use of
> these encryption types is blocked by the default system-wide policy and is not
> available through MIT Kerberos. DES support is fully removed from MIT Kerberos
> 1.17.
>
> NTMLv2 is still widely used and it uses RC4. This means we can't remove
> support for it till there is a valid replacement for the pure file server
> case.
>
> ## Questions
>
> * Can we remove NTLMv1 and LM keys for Samba 4.12 (remove `libcli/auth/
> smbdes.c`)?
> * Can we remove DES and 3DES Kerberos support for Samba 4.12?
> * When can we remove RC4 support with Kerberos?
>
>
>
> 	Andreas
>
>
Just in case any one is interested, Univention will be releasing version 
5 of their product next year and they will be dropping support for 
NT4-style domains.

Rowland