NS and SOA records that Amazon Route 53 creates for a public hosted zone. For each public hosted zone that you create, Amazon Route 53 automatically creates a name server (NS) record and a start of authority (SOA) record. You rarely need to change these records.

What is AWS Route 53 used for?

Amazon Route 53 effectively connects user requests to infrastructure running in AWS – such as Amazon EC2 instances, Elastic Load Balancing load balancers, or Amazon S3 buckets – and can also be used to route users to infrastructure outside of AWS.

What is SOA record used for?

The DNS ‘start of authority’ (SOA) record stores important information about a domain or zone such as the email address of the administrator, when the domain was last updated, and how long the server should wait between refreshes.

What is SOA Amazon?

The abbreviation stands for Selling on Amazon. Sell on Amazon. General Selling on Amazon Questions.

What are the three main functions of Route 53?

Amazon Route 53 features

  • Traffic flow. …
  • Latency based routing. …
  • IP-based routing. …
  • Geo DNS. …
  • Private DNS for Amazon VPC. …
  • DNS Failover. …
  • Health Checks and Monitoring. …
  • Domain Registration.

Is Route 53 a load balancer?

Route 53 is a Domain Name System (DNS) service that performs global server load balancing by routing each request to the AWS region closest to the requester’s location.

Why is it called Route 53?

AWS Route 53 takes its name with reference to Port 53, which handles DNS for both the TCP and UDP traffic requests; the term Route may signify the routing, or perhaps the popular highway naming convention.

Is SOA record necessary?

SOA records are mandatory. You have to stuff something in that AUTHORITY section where it is required by RFC if you expect the rest of the internet to play nicely with you. Obviously they aren’t really authoritative for co.uk , but this at least tells other nameservers what the negative TTL should be.

How do you read SOA?

First, you need to get the current serial number

  1. Open a command window.
  2. Type nslookup and press [Enter].
  3. Switch to querying SOA records by typing set type=soa and press [Enter].
  4. Type the name of the domain name in question and press [Enter].

What does an SOA record look like?

The SOA record includes the following details: The primary name server for the domain, which is ns1.dnsimple.com or the first name server in the vanity name server list. The responsible party for the domain: admin.dnsimple.com. A timestamp that changes whenever you update your domain.

Which port is DNS?

Default Port Numbers

Port IP Protocol
22 TCP SSH
25 TCP SMTP
53 TCP & UDP DNS
80 TCP HTTP

What is a Hosted Zone?

A hosted zone is analogous to a traditional DNS zone file; it represents a collection of records that can be managed together, belonging to a single parent domain name. All resource record sets within a hosted zone must have the hosted zone’s domain name as a suffix.

What is DNS in AWS?

DNS, or the Domain Name System, translates human readable domain names (for example, www.amazon.com) to machine readable IP addresses (for example, 192.0. 2.44).

What is DNS and DHCP?

Domain Name System (DNS) is an Internet service that translates domain names (e.g., its.umich.edu) into IP addresses. Dynamic Host Configuration Protocol (DHCP) is a protocol for automatically assigning IP addresses and other configurations to devices when they connect to a network.

What is CloudFront in AWS?

Amazon CloudFront is a web service that speeds up distribution of your static and dynamic web content, such as . html, . css, . js, and image files, to your users. CloudFront delivers your content through a worldwide network of data centers called edge locations.

What are subnets in VPC?

A subnet is a range of IP addresses in your VPC. You can launch AWS resources, such as EC2 instances, into a specific subnet. When you create a subnet, you specify the IPv4 CIDR block for the subnet, which is a subset of the VPC CIDR block.

What is a CIDR block?

CIDR blocks are groups of addresses that share the same prefix and contain the same number of bits. The combination of multiple connecting CIDR blocks into a larger whole, sharing a common network prefix, is what constitutes supernetting. The size of CIDR blocks can be determined by the length of the prefix.

What is CIDR in AWS?

CIDR is an acronym that stands for Classless Inter-Domain Routing. In simpler terms, a CIDR block is an IP address range. A VPC can accommodate two CIDR blocks, one for IPv4 and another for IPv6, but for the sake of simplicity I am going to limit my discussion to IPv4.

What is NAT gateway in VPC?

NAT Gateway is a highly available AWS managed service that makes it easy to connect to the Internet from instances within a private subnet in an Amazon Virtual Private Cloud (Amazon VPC). Previously, you needed to launch a NAT instance to enable NAT for instances in a private subnet.

What is endpoint in AWS?

An endpoint is the URL of the entry point for an AWS web service. The AWS SDKs and the AWS Command Line Interface (AWS CLI) automatically use the default endpoint for each service in an AWS Region. But you can specify an alternate endpoint for your API requests.

What is elastic IP in AWS?

An Elastic IP address is a static public IPv4 address associated with your AWS account in a specific Region. Unlike an auto-assigned public IP address, an Elastic IP address is preserved after you stop and start your instance in a virtual private cloud (VPC).

What is difference between NAT gateway and NAT instance?

When a connection times out, a NAT gateway returns an RST packet to any resources behind the NAT gateway that attempt to continue the connection (it does not send a FIN packet). When a connection times out, a NAT instance sends a FIN packet to resources behind the NAT instance to close the connection.

What is elastic IP vs public IP?

Elastic IP is used when you are working on long time project and configuration of IP sometime consumes more time. Public IP is used when you are working on small projects and running 2-3 servers. Here in this situation you make use of IP for short time.

What is the difference between security group and nacl?

NACL can be understood as the firewall or protection for the subnet. Security group can be understood as a firewall to protect EC2 instances. These are stateless, meaning any change applied to an incoming rule isn’t automatically applied to an outgoing rule.

What is VPC endpoint?

A VPC endpoint is a virtual device which is horizontally scaled, redundant and highly available, that provides communication between EC2 instances within your Virtual Private Cloud and other supported AWS services without introducing availability risks or bandwidth constraints on your network traffic.

What is a gateway endpoint?

Gateway Load Balancer Endpoint. An elastic network interface with a private IP address that serves as an entry point for traffic destined to a supported AWS service, endpoint service, or AWS Marketplace service.

What is transit gateway?

A transit gateway is a network transit hub that you can use to interconnect your virtual private clouds (VPCs) and on-premises networks. As your cloud infrastructure expands globally, inter-Region peering connects transit gateways together using the AWS Global Infrastructure.