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
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 an internal load-balancer in aws and I am able to access it successfully from my office network.
I want to put this behind a generic dns so using Route 53, I created a private hosted zone "domain.com"
and then created A record "project.domain.com" pointing to the lb dns mentioned below:
DNS of internal load balancer -> internal-lb-99999999999999.us-east-1.elb.amazonaws.com/
But now from my office network I tried to access "project.domain.com" and it did not work. AM I missing something?
For the setup i have used in the past we do not have the http:// part in the value of the A record in DNS just the load balancer DNS.
Also have you validated that your VPC has DNS resolution enabled?
I have multiple EC2 instances connected to a load balancer and the traffic is routed to load balancer using Route53.
Suddenly, I can longer access my website if I type my domain name "www.domain.com". I tried to debug the problem by directly typing the load balancer DNS in the browser and it worked.
To investigate the problem further, I created a single instance and directed the traffic using route53 to the current public IP of the instance. If I use the domain name "www.domain.com" in the browser, I get an error stating that the site can't be reached. If I use the public IP of the instance I can reach the page. I think that means that Route 53 is not directing the traffic to instance.
How can I check that because I have been in this problem for almost two days. Is there is a way to check whether Route 53 routes traffic or not? I am sure my security group of allows traffic For HTTP, HTTPS, SSH and the port numbers are correct.
I have just set up my first "Application Load Balancer" and I chose the SSL option to connect allowing AWS to generate the certificate for me based on my domain (www.example.com).
I have set the target to my EC2 instance and now I want to connect to the Load Balancer but not sure how. If I just connect to the DNS name of the load balancer I get an invalid certificate error.
I have read that I need to set a record for my domain but because the IP of an application load balancer may change, not sure if that is a good idea.
The documentation mentions the following:
Clients can use the Server Name Identification (SNI) protocol
extension to specify the hostname they are trying to reach.
But I couldn't figure out how to do that. I'm very new to Load Balancers and not quite sure how to proceed.
The following problem is easy to solve with AWS Route 53:
Create a hosted zone in Route 53
Choose the name of the hosted zone that has the domain name that you want to use to route traffic to your load balancer
Choose Create Record Set.
Specify the following values:
Name:
Type the domain name that you want to use to route traffic to your ELB load balancer. The default value is the name of the hosted zone.
For example, if the name of the hosted zone is example.com and you want to use acme.example.com to route traffic to your load balancer, type acme.
Type:
Choose A – IPv4 address.
Alias:
Choose Yes.
Alias Target
Find the applicable category in the list (ELB Application Load Balancers, ELB Classic Load Balancers, or ELB Network Load Balancers), and then choose the name that you assigned to the load balancer when you created it.
Routing Policy:
Accept the default value of Simple.
Evaluate Target Health:
If you want Route 53 to route traffic based on the health of your resources, choose Yes
Choose Create.
Also If you don't want to use Route 53 and if it's not at the apex, you use a CNAME to the ELB.
Refer to this Guide
Something like :
my.web.thingy.org CNAME my-loadbalancer-1234567890.us-west-2.elb.amazonaws.com.
And yes you are correct the IP of ELB Changes Frequently and thus it is not recommended to use A Record in DNS.
Hope this Helps
At work we're trying to set up our load balancer with amazon aws. We have two instances, one instance is made from an ami from the first instance.
We only have time to use the AWS GUI right now.
We also currently have one instance associated with the route 53 DNS. What was happening was once that instance started failing, the load was not rolling over to the new instance.
We then tried using the A address of the load balancer for the Route 53 DNS, but that was not distributing the load either.
Are we doing this completely wrong? Do the Route 53 an ELB need to work in conjunction?
I really appreciate any help with this.
**NOTE at low traffic our health checks work fine and our instances are "In Service"
You need to have the route53 domain direct traffic to the ELB. If you have example.com and are trying to route that to the load balancer you need to associate the apex with the load balancer.
To do this, go to the route53 tab. Click your hosted zone and go to record sets. then create a new zone and click yes for alias You then need to associate the hosted zone with your ELB.
Now to get the traffic to fail over correctly you need to be running both instances behind the load balancer (preferably in multiple availability zones) and the ELB will take care of the failover.
To do this, go to the elb section of ec2. Click your load balancer and add instances to it.