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- [Narrator] Hi and
welcome back to the class.

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In this video we're going to be setting up

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our DNS settings using Cloudflare.

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Cloudflare is a Content Delivery Network.

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Commonly known as a CDN and what it does

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is it sits in front of our server.

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So whenever anybody accesses our domain,

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they will, actually, be
accessing Cloudflare.

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Because it sits in front,

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it lets us do things like store our site

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on their servers so it's faster.

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Or it gives us security and it lets us

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prevent any denial-of-service attacks

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and a bunch more stuff.

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It's, really, a nice
product and it's also free

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if you have low amounts of traffic.

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So we're gonna learn how
to us it in this video.

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The first thing we'll
want to do is sign up

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and that's fairly simple.

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Just an email and a password.

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And as I said, you don't
have to pay at all.

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Once you've signed up,

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you will be received and
logged in, of course.

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You will be received through
the website like this one.

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And here is where you
can add your website.

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If you don't see this page, specifically,

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just go to the Add Site button.

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What we're gonna do here

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and what Cloudflare wants to know

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is what our domain name is.

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We've bought our domain name

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and we can just enter it here.

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It is rest-api-course-trial.com

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And then we're gonna begin this scanning.

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What it's doing now is it's finding

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that we are, actually,
the owners of this domain.

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Or rather, this domain has
been registered by somebody.

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Now that it has scanned,
we can continue the setup

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and that's what we're gonna do.

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Here we can see that there are

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a bunch of things going on on the screen.

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We don't, really, know what's happening.

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Let's find out, exactly, what's going on.

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It's asking us to verify that all

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our DNS records are listed.

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So what is a DNS record?

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I mentioned in the last video

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that the Domain Name System is what allows

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a browser to enter a
string on the address bar

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and then goes to a particular IP address.

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As we can see, we've got
a row on this table here

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that says rest-api-course-trial.com

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which is our domain name,

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points to 192.64.119.216.

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So this is our IP address
and that's our domain name.

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And indeed, what'll happen because

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of this DNS setting is that when we put

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rest-api-course-trial.com on our browser,

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really our browser is going
to be going to 192.64.119.216.

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So that's what this first record means.

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And, evidently, that's not
the IP address of our server.

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That is an IP address that Namecheap owns

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and that they serve for
us until we set our own.

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Then we've got a C name record.

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And the C name says www and this says

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that this is an alias of
parkingpage.namecheap.com.

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So we'll investigate,
exactly, what this means

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in a few minutes when we set up our own.

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But, essentially, all that's doing

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is that when we access
www.rest-api-course-trial.com,

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really what we're accessing
is parkingpage.namecheap.com.

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So, essentially, it's like
a redirection sort of thing.

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And then we've got a bunch of MX records

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and these are for email exchange

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and these are in case we want to set up

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our email clients to use
our domain name, really.

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We're not gonna be using
that in this course.

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And finally, we've got a TXT record.

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A TXT record, all that that is is just

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a piece of text stored against our domain.

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So in this case, we've got a string

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that says v=spf1 include:
blah, blah, blah, blah, blah.

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And that's just this piece of text

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that is stored against our domain name.

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The browser doesn't use it,

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it's only used by a domain
name system servers.

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Now we've got all this stuff here

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and, evidently, this is not
our IP address, for example.

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We don't own this alias either

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and we don't, really,
own these mail handlers.

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But we're gonna except this for now

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just because they are the default settings

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and we're gonna change them in a minute.

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So let's press Continue.

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Then it asks us to select a plan.

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We're gonna go for Free Website.

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And what this says is
Basic Security Protection

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which isn't much but it is something.

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It allows us to improve
the performance of our site

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because it caches the
contents of the site.

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It stores the contents
in Cloudflare servers

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so the access to them is faster.

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It gives us a SSL certificate

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which is something we're interested in

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and that, essentially,
allows us to encrypt

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communication between browser and servers.

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We're gonna look at,
exactly, how that works

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in the coming videos.

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And finally, it also give us the

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Always Online which is a protection

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against being down and
our server going offline.

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The other plans, of course,
give you more things.

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For example, the Pro gives you more

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extra protection in all the browsers

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as opposed to only the main browsers.

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And it gives you a bunch
of more stuff and so on.

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But, evidently, they get a bit expensive

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so we're gonna stick
to the free one for now

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and we can always go to
the next one if we need it.

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Finally, we're gonna update name servers.

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This is important and we're gonna look

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at why this matters in
the very next video.

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But what it's saying is that we have

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to change the DNS servers,

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the main name servers.

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The way we do this is we take a copy

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of the name servers that are asking

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us to change to.

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So beth.ns.cloudflare.com
and Justin.ns.cloudflare.com.

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And then we go to Namecheap
and in our dashboard,

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just make sure to log in to your account.

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And go to your dashboard.

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We're going to go into the
domain that we've bought.

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Here we're going to go to Manage.

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And finally, we're going to change

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the name servers section.

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So instead of Namecheap BasicDNS,

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we're gonna go for custom DNS

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and we're gonna add Beth and Justin here.

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And then press the tick.

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That is now changed.

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And we are now using Cloudflare.

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Let's go back to the Cloudflare
site and press Continue.

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And that's us and done.

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We can press Recheck Name Servers here

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and make sure that Cloudflare knows

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that we have changed the name servers

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but name server changes can take awhile.

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Here is says up to 24 hours,

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other sites say 48 hours.

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It can take awhile to propagate across

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the domain name system.

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So give it a wee while until
that is all cleared out.

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In the next video we're going to look

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at, exactly, how DNS works and why

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changing these servers is important.

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So I'll see you in the very next video.