Reading smb.conf manpage, enabling "client ntlmv2 auth" will disable NTLMv1, client lanman auth and client plaintext auth authentication. It also disables share-level authentication.
Servers can be configured to accept NTLMv1 and NTLMv2, or just NTLMv2. Clients can be configured as well to send NTLMv1 or NTLMv2.
Changing the default will break existing working connections to servers and clients, and will break share-level authentication (used in XP). The idea is to follow samba upstream defaults where we can, and here I think we should.
Reading smb.conf manpage, enabling "client ntlmv2 auth" will disable NTLMv1, client lanman auth and client plaintext auth authentication. It also disables share-level authentication.
Servers can be configured to accept NTLMv1 and NTLMv2, or just NTLMv2. Clients can be configured as well to send NTLMv1 or NTLMv2.
Changing the default will break existing working connections to servers and clients, and will break share-level authentication (used in XP). The idea is to follow samba upstream defaults where we can, and here I think we should.