../source3/param/loadparm.修改源，和DNS

sudo pam-auth-update

解決：

no talloc stackframe at ../source3/param/loadparm.c:4864, leaking memor

源:

/etc/apt/sources.list

/etc/network/interfaces

添加dns-nameservers 8.8.8.8

這個方法比修改/etc/resolv.conf，更好，重啓後不會變回來