[Autogenerated] Now we're seeing the
important of D n A service. Let's have a
little chat about Global catalogue service
global catalogue service, often overlooked
in our active directory design and
troubleshooting. But they have several
vital roles when thinking about global car
locks. I must think Logan's on lookups
Global Colleague service had used during
the Logan process. In particular, lists of
universal groups were obtained from Global
Colleague Service. Also, whenever you do a
query against active directory, domain
service is, you're most likely clearing
the global catalogue service first,
particularly in a multiple demand
environment. So if the global catalogs
ever fails uses that use they use, a
principal name slogan might be prevented.
Universal Group memberships might not be
available. Logging on searches on
administration task performed against
active directory might fail. All provide
stale data, so global catalog servers need
to be available on highly available in
your domain. Let's take a look how we
create global Catholic service. Let's
leave Dennis manager on. Go back to you
Serving manager on my desktop. There are a
couple of tools we can use to enable
domain controllers as global Catholic
service. If I right click D. C on go to
active directories and computers.
Inactivity, actually using computers. We
want the demand controllers. Are you? We
can see the two. D C d c and D. C too. If
I right click even these on good
properties, we find NTS settings. If I
select anti death signs, he can see the
global colored tip box. If that tick boxes
selected, then this demand controller will
be a global catalog server. If it's on
ticked, disturbing controller will not be
a global Catholic service. So we could see
that D. C. Is a global cat. Looks over.
And if we do the same on D. C too. D C two
is also a global catalog server. We should
be providing high availability for our
global Catholic service. So you want at
least to global catalog serves in your
forest. If you only have one global
Catholic server, then make sure you take
the box to make your second d. C. A global
catalog server as well he cannot see from
this screen. Their son is that both demand
controls a global Catholic service. Now,
if we come out of active jets using
appears this time, I'm gonna right Click
one of our D. C's and go to active
directory sites. And service is after Dr
Sites and Service's shows the list of
sites in Active General Forrest. Here you
can see the first sight default First
Sight Nim. If we never get through there
and find out the main controllers on
sites, I need to be in control again. We
can see anti death things. If we might
like that. Gonna properties again. We see
the global cattle take books so we can use
even tool to make out demand controllers
Global Outlook Service onto the boxes to
demote him. Now the rule is that any
active directory site that contains domain
controller should also have a global cat.
Looks over. You might ask the question.
Why not make all demand controls global
Catholic service? Historically, the
problem's been about replication. By
making all your demand control of global
catalogue service, they all have to
replicate recover, to keep each other up.
Today, that's a lot of application. In
today's world, where one connections are
pretty fast, we're much more like let's
make call out the main controls Global
colic Sanders. In fact, most designs I come across the day do just that