I have an issue that current registrar allow only ANAME reference, so I have a an Elastic ip for all my web settings. I would like to assign it to the load balancer and then load balancer will decide who is going to handle it.
I cannot find a way to create it with Route 53. I cannot add my route 53 domains to my registrar and would appreciate any advice.
Thank you.
Change your ANAME record to an A record that has the EIP of your Load Balancer. You can set a high TTL, because "your" EIP won't change. You don't even need your web servers in DNS. Your Load Balancer should just have a list of their IPs.
It will look like this:
1) Client does a DNS lookup for foo.com
2) Client gets A record that has (E)IP of LB
3) Send request to LB's IP
4) LB distributes traffic to web servers
If your LB dies, spin up a new one and move the EIP to it.
You should have your registrar use Route 53 as its Nameserver. In Route 53 create a hosted zone and use an A record of type Alias and choose the Elastic Load Balancer Endpoint.
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
Is it possible to assign a static IP to an AWS load balancer without the need to move your NS records to Route 53?
I basically just want to create an A record from my domain to point to the ELB.
Elastic Load Balancer is a distributed system. It does not have a single public IP address. Instead, when you create an ELB, you are given a DNS name such as ExampleDomainELB-67854125.us-east-1.elb.amazonaws.com.
Amazon gives a facility to set up a DNS CNAME entry pointing for e.g. www.exampledomain.com to the ELB-supplied DNS name.
Also, ELB is directing to one of your instances. Hence, creating a static IP address for ELB will not be feasible.
So as a solution if you need to set your 'A' record from your domain pointing to your ELB in Route53 :
Select 'Yes' for Alias.
Set Alias target as your Load Balancer DNS.
Second way is similar by selecting the CNAME in Route53 and pointing the Alias Target to your ELB.
This should help.
AWS Load Balancer is a very generic term.
You currently have three options for load balancing in AWS:
Application Load Balancers (ALB)
Network Load Balancers (NLB)
Classic/Elastic Load Balancers (ELB)
Of those three only one, the Network Load Balancer can have a static IP address. It's listed in the reference below.
Support for static IP addresses for the load balancer. You can also assign one Elastic IP address per subnet enabled for the load balancer.
It is also possible to "glue" an NLB and ALB together to provide a static IP address and application load balancer functionality. In general you allow a lambda to populate an NLB Target group with your ALB info. It's outside the scope of this answer but the link is below.
If you're using Route53 you can create an A record Alias for your Load Balancer.
If you're not, you can use a CNAME.
References
https://docs.aws.amazon.com/elasticloadbalancing/latest/network/introduction.html
https://aws.amazon.com/blogs/networking-and-content-delivery/using-static-ip-addresses-for-application-load-balancers/
ELB manage the IP for you, it just gives you the DNS name. So you can't control the IP behind it.
If you need an A record than you need to use A record alias from Route53.
Without using Route 53, you can use CNAME instead of A record.
So there is my load balancer with allocated dns name and group policy - the question how my customer could link it with his hosted zone's record?
and how I could open inbound connection for that domain name?
For now as a workaround I've created hosted zone record in my acc linked to this load balancer ... and created hosted zone record in his route53 to ip (which atm points to my record) ... BUT I think it doesn't actually point to load balancer, but only to it's node ... and I have this problem since obviously ssl certs don't match
NET::ERR_CERT_COMMON_NAME_INVALID
Could somebody point to right solution of this problem ... ?
Your customer provisions a Route 53 Alias record in the normal way, but instead of selecting the balancer from the list of targets (since it isn't shown), your customer will need to paste the DNS Name of the balancer in the box.
If you used different accounts to create your Route 53 hosted zone and your load balancer – Enter the value that you got in the procedure Getting the DNS Name for an ELB Load Balancer.
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resource-record-sets-values-alias.html
I've setup an internal load balancer for my SQL read servers in EC2, but I can't figure out how to point DNS at it. I have a private hosted zone in Route 53. When I attempt to setup an ALIAS record to the LB, the internal load balancer does not appear in the dropdown, though all the public LBs do, which leads me to believe I'm going about this the wrong way. None of my Googling has led me to any information specific to private load balancers, so maybe it's just not possible and I have to use the long AWS domain name?
My experience : I was trying to create single HTTPS contact point for my application, so I tried setting up internal load-balancer hoping when I point it to A Record in Route 53 it would work with just A Record url.
To answer your question :
Internal Load Balancers do list in Load Balancer listing for Route 53.
You can not use A Record url to publicly point to internal load-balancer unless you are actually connected to VPC
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: