Why does the Neutron documentation recommend three interfaces?
The documentation for configuring Neutron recommends that a network controller has three physical interfaces:
Before you start, set up a machine to be a dedicated network node. Dedicated network nodes should have the following NICs: the management NIC (called MGMT_INTERFACE), the data NIC (called DATA_INTERFACE), and the external NIC (called …
Automatic hostname entries for libvirt domains
Have you ever wished that you could use
libvirt domain names as
hostnames? So that you could do something like this:
$ virt-install -n anewhost ... $ ssh clouduser@anewhost
Since this is something that would certainly make my life convenient, I put together a small script called virt-hosts that makes this possible …read more
Interrupts on the PiFace
I recently acquired both a Raspberry Pi and a PiFace IO board. I had a rough time finding examples of how to read the input ports via interrupts (rather than periodically polling for values), especially for the newer versions of the PiFace python libraries.
After a little research, here's some …read more
Generating a memberOf attribute for posixGroups
This showed up on #openstack earlier today:
2013-07-22T13:56:10 <m0zes> hello, all. I am looking to setup keystone with an ldap backend. I need to filter users based on group membership, in this case a non-rfc2307 posixGroup. This means that memberOf doesn't show up, and that the memberUid …