net.ipv6.conf.all.disable_ipv6 = 1 sysctl -p /etc/sysctl.d/01-disable-ipv6.conf stefan@stefan-nb ~ % nmap 192.168.56.210 Nmap scan report for 192.168.56.210 Host is up (0.00056s latency). Not shown: 999 closed ports PORT STATE SERVICE 22/tcp open ssh [libdefaults] default_realm = EXAMPLE.NET dns_lookup_realm = false dns_lookup_kdc = true root@fs01:~# net ads join -U administrator [...] root@fs01:~# net ads testjoin Join is OK passwd: compat winbind group: compat winbind root@fs01:~# smbclient -L fs01.example.net Enter root's password: protocol negotiation failed: NT_STATUS_INVALID_PARAMETER_MIX [admin] path = /data browsable = no read only = no [Departments] path = /data/Departments browseable = No hide unreadable = Yes read only = No net conf import /etc/samba/smb.conf [global] config backend = registry