Introduction to Route53
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Video Transcription
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>> Hey everybody and welcome back to Lesson 1 of Module 8,
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where we're going to be talking about
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an introduction to Route 53.
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Ideally, what is this Route 53?
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That's going to be the learning objectives here.
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We're going to be describing that out for you.
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By the end of this lecture,
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you'll be able to understand and
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describe what Route 53 is.
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Amazon Route 53.
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This is the DNS service that is provided by AWS.
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You do not have to use it,
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but it is an offering that you can use.
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It allows you to register domains.
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Yes, it is a domain registrar.
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You can associate the domain names that you
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purchase or that you transfer over
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to any of the AWS services that
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are applicable like EC2 instances or something like that.
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Even S3 buckets you can associate with as well.
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This is a highly available DNS service,
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is provided by Amazon,
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managed by Amazon, and you can
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leverage it for all of your domain names.
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This also allows you to
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check the health of AWS resources.
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What does that mean? Well, there's a health meter,
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meaning that there's an availability meter.
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The health check is to ensure that
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the endpoint is accessible to whatever degree.
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If you're trying to access over the Internet,
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a good health meter or good health reporting
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will show that the resource is accessible.
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You are able to ping it,
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you are able to surf to it, etc.
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A bad health would show
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a 404 error or something like that or a 504 error.
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Basically say, this is not
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accessible for whatever the reason is.
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That is what a health check is. So there you go.
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Route 53's SLA is a 100 percent availability and it
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is available across the globe so you can access them.
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Route 53 DNS settings
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are rather setting your DNS records.
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This is something that you can do.
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Essentially, you purchase a domain or you transfer
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a domain name and you want to set up the DNS records.
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Well, what are DNS records?
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These are your A records,
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your CNAME records, your MX records, things like that.
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These are all the things that we use to
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configure a associated domain name such as
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domain.com or cybrary.com to
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whatever IP address or whatever we want to do with it.
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IP addresses are used by servers,
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hosting servers, to host a website.
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We'll say cybrary.com has
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a IP address associated with it.
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But we don't remember the IP address.
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We remember cybrary.com.
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We typed this cybrary.com and it does
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a translation between what we know,
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which is the domain name and the IP address,
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which we typically do not know.
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It'd be strange if you did.
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But if you do happen to know it good on you,
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[LAUGHTER] but for those of you that don't,
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ie me, I can recall cybrary.com because that's
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easy to remember instead of a four-part IP address.
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That's what part of this whole DNS record thing is.
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We can set up an alias or an A for cybrary
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to the public IP address of cybrary.com.
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That is an example of a record type.
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Another record type is an MX record.
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Let's say cybrary uses,
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I don't know, let's say they use Microsoft Exchange.
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That's what they use as their email provider.
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Well, there email provider is going to want
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the MX record or rather other way round.
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You're going to have to connect the MX record from
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the mail exchange server
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to the associated domain name
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that you're going to be using.
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This is how you can have
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your own corporate email account.
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It could be info@your name.
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For example, mine,
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I have one, it is info@nicholasmoy.com.
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I can use that and
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I'm sure the cybrary has something that's very similar.
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You can use these types of records to set up
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your own personalized piece
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of your email or your business or whatever,
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some business email, something like that.
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You can leverage MX records in that sense.
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If you do not know what these record types are,
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I encourage you to go online and
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do a little bit of searching around.
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There's a lot of great YouTube videos
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out there that help you understand
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what DNS record types
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are. Some other things you could do.
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You can answer your value for your IP address.
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You can insert routing policies and your time to live and
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all that good stuff. That is that.
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Hosted zones, this is
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another piece of Route 53 that you need to know.
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These are containers for records that
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define how a route traffic
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is or how to route traffic to a specific domain.
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What I mean by that as well,
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you have a public-hosted zone.
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This is something that specifies
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how the route traffic on the Internet.
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Then you can have a private hosted zone which
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specifies how to route traffic within your VPCs.
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Private hosted zone is something
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that's like an internal DNS.
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You can route between
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your different VPCs, different resources internally.
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This can span to your On-premise network if you are
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using a site-to-site VPN or
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a direct connection over fiber.
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You can do it that way as well.
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But yeah, that's what that is.
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To quickly summarize, Route 53 is
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the Amazon domain name service
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that is hosted and that's managed for us a 100 percent.
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No worries about downtime with this service.
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It leverages hosted zones for you to do any type
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of public DNS or
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private DNS for your internal environment.
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It can manage DNS records and all of that good stuff,
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which we talked about as well.
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If you need some better understanding
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of the service because you've never done this before,
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we're going to have a lab a little
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later on in this module.
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But if you can't wait for that,
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you want to start getting some better understanding,
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feel free to review the documentation.
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If you've never messed with DNS,
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if you've never messed with
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GoDaddy or any of
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those other providers that deals with DNS records,
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then I encourage you to go on YouTube and watch
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some videos to help you
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wrap your head around this concept.
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I recognize that not everyone has done this before,
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but if you've built websites before,
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chances are you have messed with DNS to some extent.
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I'm going to go ahead and wrap up this lesson.
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I'll see you guys in the next one where we're
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going to talk about Time to Live. See you there.
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