Peter Loron's questions

I am trying to get Ubuntu Server 16.04 configured so I can authenticate via pam and LDAP to our Active Directory servers. I have this combination working in 14.04. Following the same configuration steps in 16.04 does not seem to work.

The setup I've used before is basically what is described in this article: How to configure Ubuntu as an LDAP client?

When I configure that on a 16.04 machine and try to SSH in, what I see in the auth.log is an LDAP bind failure. The user it is trying to bind as is the user I'm logging in as, not the user I defined in ldap.conf as the bind user.

Any pointers? Thanks.

I'm trying to install Xubuntu 14.10 (tried 15.04 beta1 as well) in a VirtualBox (4.3.24) VM. The VM boots from the ISO, and when I let it boot to the live mode or select "install", it tries to come up into the graphical installer and hangs with a resized window which is long and narrow.

Any ideas?

We have a set of Windows 2012R2 domain controllers which provide DNS and DHCP service for the network.

I have an Ubuntu 14.04 server which is getting addresses via DHCP. This works correctly. In the Windows DHCP server, I have converted the lease to a reservation. In the DHCP server interface, I can see that the hostname of the client is properly being displayed, so I know the client is properly sending the hostname back.

However, the DNS servers do not seem to be able to resolve the address. Probing the DNS servers via dig returns no records for the hostname.

Windows DHCP clients in the domain which have reservations properly update DNS.

Any pointers on how to resolve this?

I have a 12.04 X64 Desktop install on a machine where I previously had 10.10. Previously I've used both the built-in vino and tightvncserver to provide the VNC session. I connect to them using Chicken of the VNC on my Mac.

With the older version, VNC performance was pretty good. Now with 12.04, it is abysmal using vino. Updates are sluggish, menus flicker and vanish, lots of extra screen redraws, etc.

Any pointers on recovering some performance? Thanks.