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Questions tagged [amazon-elastic-ip]

AWS Elastic IP addresses (EIP) allow the assignment of public static IPv4 addresses to resources, generally EC2 instances. An EIP can be remapped quickly, which allows the user to mask the failure of instances or software.

An Elastic IP Address (EIP) is a public static IPv4 address, which is reachable from the Internet. You can associate an Elastic IP address with your EC2 instance to enable communication with the Internet; for example, to connect to your instance from your local computer.

Elastic IPs provide resource mobility within a single VPC within a single AWS region, assisting with architecting fault tolerant applications. An unallocated EIP incurs charges.

Questions specifically dealing with AWS' Elastic IP should use this tag.

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How could I use single elastic IP for multiple instances (AWS)?

What would be best way to achieve such thing: I have limited amount of elastic ips, and I have bunch on EC2 instances to launch small apps. I have an idea to have load-balancer or an EC2 instance that could route traffic to any other EC2…
LuckyLuke
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Custom domain pointed at elastic IP does not have correct SSL certificate

So i have this problem that is bothering me for some time. Now i created SSL certificate with LetsEncrypt and its for my custom domain. Lets say example.com. Now i have set this certificate for load balancer in EB and for listener in EC2. When i…
Axeror
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Move an Elastic IP from a VPC to Classic EC2

I know it is possible to "Move to VPC Scope", but is it also possible to move back from VPC to Classic EC2?
Mark Hansen
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Assign elastic ip address to ec2 fleet instances

I am creating multiple EC2 instances using EC2 Fleet service in cloudformation, I want to assign elastic IP addresses to newly created instances from EC2 Fleet, below is my template, can anyone help with this, thank you in advance. …
Darshan Palsamkar
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disassociate EIP and then convert to vps eip

I have an eip that I want to convert from scope EC2-classic to VPC. Can I disassociate, convert to VPC eip, and then just re-associate with the same ec2 instance? I'm not sure if I will be able to reattach it to an instance, not in the VPC.
thevoipman
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How do i modify route tables in EC2 instance to send traffic via eth1?

I have an ec2 AmazonLinux2 instance. It has a primary nic on eth0. I went ahead and attached another eni (with an associated public ip) eth1. I would like to make sure that I can send traffic via the eth1 as well but unable to. curl --interface eth0…
Karthik Balasubramanian
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AWS ALB Shows Target Group unhealthy, even though port 80 is open to Internet

I've built an AWS ALB & Target group via Terraform and everything looks correct but the Target Group is reporting unhealthy for HTTP, HTTPS, and TCP. The instance is a t3.nano in us-east-2 and has Nginx installed and running. I've verified the…
John Heyer
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Do you need separate IP addresses for each nameserver for an EC2 webserver?

Do you need separate elastic IP addresses for each nameserver - say NS1, NS2 - for an EC2 webserver?
inac
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What latency is incurred by using an AWS Elastic IP?

I have an EC2 instance that runs an application which connects and listens to a third party WebSocket server (also deployed on AWS, using EC2 instances and Elastic Load Balancing to the best of my knowledge). My EC2 instance also runs a separate…
galpo
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Public IPv4 addressing behavior with AWS spot instances

I'm deploying a very resource intensive web scraper, to optimize costs I opted to use AWS Spot Instances knowing the default behavior of IP addresses when dealing with EC2 instances the 1st question that came up to mind was if it's possible to…
LordGoats
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AWS Elastic IP becomes detached after instance reboot

I have Elastic IP, I have EC2 instance. If I reboot the instance elastic IP becomes detached. How can I make it persistent?
freento
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My AWS EC2 VM is not receiving HTTP from an external browser to the elastic IP of my EC2 instance

Problem Can't browse my web app on my new AWS EC2 VM. Wireshark on VM, shows a little HTTP activity, but nothing when I browse my URL or its elastic IP from an external browser (at my home office). My Setup My ASP.NET Web app is running on my AWS…
Doug Null
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With cloud servers who don't offer reassignable public IP addresses, how can I instantly have a domain name switch to a different instance?

AWS offers Elastic IP Addresses, which are great for switching website domains to a new instance/stack without having to wait for DNS changes to propagate. Some cloud service providers (e.g., Rackspace) do not offer such reassigning to their public…
Dolan Antenucci
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Unable to access Public DNS and elastic IP in browser

I am unable to access my public DNS and elastic IP using browser. My security group is quick-start which allows: ICMP, HTTP, RDP, DNS while i am getting response from pinging my elastic IP. Please help me, as i am new to Amazon EC2.
Harshit
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Does it cost anything just to allocate an elastic IP?

The title is pretty much self explanatory. When I click the "Allocate New Address" button in the EC2 console does it cost me anything?
Matthew 'mandatory' Bryant
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