Hi, Since 2 week, I try to join my Ubuntu server to an Domain Controller 2003 with krb, samba and winbind but even I try, I fail. In fact, when I make a ticket with kerberos (kinit username at domain.lan), it's a right but after, when I do : net join administrateur at domain.lan, there is an error like : [2011/07/08 15:16:02.638124, 0] libads/sasl.c:821(ads_sasl_spnego_bind) kinit succeeded but ads_sasl_spnego_krb5_bind failed: Invalid credentials Failed to join domain: failed to connect to AD: Invalid credentials ADS join did not work, falling back to RPC... Can you help me please? Thx a lot, Nicolas