I've set up my application on AWS Elastic Beanstalk. I added a load balancer and pointed a CNAME for 'www' to it. But now I need to get root pointed there too. I can't use Route53 and use AWS nameservers because the client wants to use theirs. How can I get root to my app? Can I redirect the traffic? The tech lead I'm working with suggested setting up a server to do the redirect?
Since AWS ELB's only offer DNS Record (Instead of IPs) you need to use a CNAME mapping. However with DNS, CNAMEs do not allow root domain to point to it. To overcome this AWS has provided Alias Records (Custom implementation to AWS) to point root domain to ELBs.
If your client want to use their nameservers still you can use, AWS Route53 in between to solve this with following steps.
First create a Public Hosted Zone in Route53 for your domain.
Then create a record set inside the Hosted Zone for the root domain to point to the ELB with Type = A - IPv4 Address, Alias = Yes with ELB CNAME as for the Alias value.
In the external domain management service, create a NS record to point the root domain to Route53 nameservers.
Then when the DNS resolution happens, the root DNS query will first go to external nameservers(Managed outside of Route53) and then it will be forwarded to route53 where it will resolve the ELBs IP address and sent back.
You can set up a machine with a single static IP address that does nothing but redirect requests to the www host. Then you can put an A record on the bare domain at the apex of the DNS zone pointing to that machine.
There is at least one service, http://wwwizer.com/naked-domain-redirect, that will do this for you. (I'm not affiliated with this service, but it appears to do what it claims and will serve your purpose. There are probably others like it.)
Ideally, though, you'd persuade your client to change the authoritative nameservers to point to a Route 53 hosted zone that you create for them. They are still the registrant and "owner" of their domain, and can take control back from you by simply changing the nameservers to something else.
I generally persuade clients with the explanation that our load balancer infrastructure is integrated with the DNS servers so that if a balancer node fails, or we need to add or scale up capacity, or experience a traffic surge or DDoS event, the load balancer system will automatically update the DNS records for their domain to try to mitigate the issue and keep the site up. To do otherwise is to do things in such a way that removes those layers of redundancy.
Ideally, you can set up a apache server with a static IP, and install a free SSL certificate on that web server at first.
Second you need to redirect your root domain name request to AWS ELB.
Then go to your DNS management and set up your apex point to the server you created.
It is now possible to setup a Network Load Balancer and allocate one or more Elastic IP Addresses to it (one per Availability Zone). The Network Load Balancer can have an Application Load Balancer as a target. The Application Load Balancer would target the Elastic Beanstalk. An A record can then be created in the external DNS for each Elastic IP Address of the Network Load Balancer.
If you don't need the functionality that the Application Load Balancer provides, you may be able to target Elastic Beanstalk or whatever application directly from the Network Load Balancer.
Since AWS ELB's only offer DNS Record (Instead of IPs) you need to use a CNAME mapping. However with DNS, CNAMEs do not allow root domain to point to it. To overcome this AWS has provided Alias Records (Custom implementation to AWS) to point root domain to ELBs.
If your client want to use their nameservers still you can use, AWS Route53 in between to solve this with following steps.
First create a Public Hosted Zone in Route53 for your domain.
Then create a record set inside the Hosted Zone for the root domain to point to the ELB with Type = A - IPv4 Address, Alias = Yes with ELB CNAME as for the Alias value.
Related
I have set ALB with fargate, currently I can access to ALB with dns name like this
myapp-LoadB-FDEWFSOAQXD4-f18c75dd4249a10d.elb.ap-northeast-1.amazonaws.com
However it is said this DNS could be changed.
So I want to give this the Elastic IP
I have experienced connection EC2 and Elastic IP.
In Elasitc IP panel I can choose instance.
However, there is not ALB is listed.
How can I set Elastic IP to ALB ? or am I wrong basically?
Two options here, depending on what kind of direction you are heading:
If you do not like the default DNS name
You can create a DNS record that will point to your load balancer. This means that people would be able to surf to your website by using www.whitebear.com instead of myapp-LoadB-FDEWFSOAQXD4-f18c75dd4249a10d.elb.ap-northeast-1.amazonaws.com
See: Routing traffic to an ELB load balancer - Amazon Route 53
If you really want to attach an ElasticIp to a loadbalancer
There are some use cases where it is really needed to be able to surf to a loadbalancer using a fixed IP. You can achieve this by setting up a Global Accelerator on AWS.
With Global Accelerator, you are provided two global static public IPs that act as a fixed entry point to your application, improving availability.
More information can be found on the AWS Global Accelerator page
If you wish to create a 'friendly' name for an Application Load Balancer, you can create a CNAME record in your Domain and point it to the DNS Name of the Load Balancer.
If you wish to point the Apex of your domain (eg example.com), you can use an Alias in Amazon Route 53 to point to the Application Load Balancer. (It is not normally possible to point a Domain apex to a CNAME record, so the Alias capability of Route 53 will do it for you.)
See: Routing traffic to an ELB load balancer - Amazon Route 53
I have a simple AWS setup of 2 VMs hosting a WebApp. An Application Load Balancer is in-front of these machines. I can access the DNS name of the Load Balancer and can reach to the WebApp.
Now, I want to connect to my app with a domain name hosted on Godaddy. I tried to simply create CNAME (as no Elastic IP on Application LB) with the LB's DNS name, but it didn't work.
What am I missing ? I tried with godaddy support but already wasted 7 days with not solution.
I want to put SSL certificate also on ALB. Should I be aware of anything specific in this setup?
The problem was, I was trying to CNAME for root level domain. Now, I created an alias in Route 53 and used AWS's nameservers on Godaddy to forward request there.
I am hosting content on AWS and want to configure my DNS settings so that both my # record and www record point at my Elastic Load Balancer.
example.com (# record)
www.example.com (www record)
AWS recommends setting up domains using CNAMEs as the IP addresses can change.
All the documentation I have seen on the CNAME is that they deal with subdomains but not the primary domain itself (http://example.com
). The primary domain requires an A record and therefore must require an IP address.
I do not want to use an A Record to point the traffic to my Elastic Load Balancer as the IP address may change.
Any idea how I can get around this issue?
I am using Linode to manage my DNS.
You can use a special record type in Route 53 called "Alias".
Q. Can I point my zone apex (example.com versus www.example.com) at my
Elastic Load Balancer?
Yes. Amazon Route 53 offers a special type of record called an ‘Alias’
record that lets you map your zone apex (example.com) DNS name to your
ELB DNS name (i.e. elb1234.elb.amazonaws.com). IP addresses associated
with Amazon Elastic Load Balancers can change at any time due to
scaling up, scaling down, or software updates. Route 53 responds to
each request for an Alias record with one or more IP addresses for the
load balancer. Queries to Alias records that are mapped to ELB load
balancers are free. These queries are listed as
“Intra-AWS-DNS-Queries” on the Amazon Route 53 usage report.
Source: https://aws.amazon.com/route53/faqs/
Just set the Alias to Yes and you will be able to choose your load balancer from the dropdown menu:
I have a domain name registered with tmdhosting.com. And I have created a WordPress multisite setup on AWS using bitnami WordPress multisite stack.
Now I would like to point my domain name from my registrar to my AWS instance. Where they are asking me to provide them with a NS. I am new to AWS and I am not sure as to how to go about doing this.
Also did a little bit of research where it said that I will need a Route 53 (which is not free) I would want to know if there is another way to do this.
Can I use CloudFront to do this as with my previous provider had given me a cloudflare name server.
Please let me know the steps as to how to go about doing this.
To point a Domain Name to an EC2 instance, you can either use Route 53 or your own DNS service. In both cases:
Assign an Elastic IP address to your EC2 instance
In Route 53 or your own DNS service, define a domain/subdomain that points to this IP address
The above assumes that you wish to point to a single EC2 instance. If you have multiple instances with a Load Balancer in front, you will require a CNAME record pointing to the DNS name of the Load Balancer. (If using Route 53, using the "ALIAS" button to point to a Load Balancer.)
Route 53 is not free, but it is very cheap. If correctly configured to point to AWS resources, it can cost only 50c/month per hosted zone.
CloudFront is a content distribution network that caches web content. It will not assist you in assigning a Domain Name to an EC2 instance. (Custom domain names can be used with CloudFront, but that doesn't appear to be your particular question.)
I'm using EC2 of Amazon to host a website built in JSP :
http://ec2-50-17-144-64.compute-1.amazonaws.com:8080/p2p
And I bought this domain:
www.p2pbrasil.com
How can I redirect www.p2pbrasil.com to my website in Amazon EC2 ?
When someone type www.p2pbrasil.com it redirects to http://ec2-50-17-144-64.compute-1.amazonaws.com:8080/p2p ?
You need to do two things
In the Amazon Web Service admin panel, create an elastic IP in the same region as your instance and associate that IP with your that instance (IPs cost nothing while they are associated with an instance, but do cost if not).
Add a A record to the DNS record of your domain mapping the domain to the elastic IP address assigned in (1). Your domain provide should either give you some way to set the A record (the IP address), or it will give you a way to edit the nameservers of your domain.
If they do not allow you to set the A record directly, find a DNS management service like ZoneEdit, register your domain as a zone there and ZoneEdit will give you the nameservers to enter in the admin panel of your domain provider. You can then add the A record for the domain in ZoneEdit.
I only mention ZoneEdit because the basic service is free, you could also use Amazon route 53 or a similar pay-for service, if you preferred.
Create an Elastic IP on the AWS Panel, then associate it to your instance.
Then use a DNS management service to add your domain and Ip address (Elastic IP), then on the domain provider panel add the DNS provided from the DNS management service.
I recommend EntryDNS which is actually free.
As you have your server on AWS best option is to use Route53 hosted zone.By doing this you can manage all your DNS entries using AWS. In future if you plan to use ELB's for your application, you can various traffic routing options using Route53.
Create Hosted Zone and get the name servers.
Replace current name servers with AWS nameservers from your Domain registrars DNS entries.
Create an A record in AWS hosted zone and give your servers IP (Elastic IP) as value.
For detailed instruction, you can follow this blog post. Mapping Domain Name to EC2 Server
Assuming this is a hobby website and your domain registrar isn't AWS.
If your registrar (for example godaddy.com) provides a DNS manager you simply need to add a CNAME record for www that points to the aws public DNS record for your instance. For example ec2-50-17-144-64.compute-1.amazonaws.com
This will make http://www.p2pbrasil.com display the same content as http://ec2-50-17-144-64.compute-1.amazonaws.com
Doing it this way you don't have to pay for an elastic IP, which is a dedicated resource. Your IP on your ec2 instance shouldn't change but could if you restart your instance.
Put the public IP from your EC2 instance as an A name to your root domain in Route 53 hosted zone.
This change might take some time.