ELB is Amazon's managed Load Balancer service, used in conjunction with its EC2 virtual machine cloud hosting service.
Questions tagged [amazon-elb]
552 questions
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Can't access AWS ec2 instance behind elastic load balancer
I've been following lynda.com's AWS essential training and I've successfully set up an EC2 instance but when I try to put it behind a load balancer I can not access it through the ELB's public DNS.
On the AWS Load Balancer console it says the status…

Holly
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certificate does not match name aws private ip
Using AWS ec2 with a load Balancer and elastic IP.
Im trying to add and SSL certificate but getting the following error.
Certificate does not match name shop.domain.com
Subject ip-172-31-19-115
Valid from 13/Jul/2015 to 12/Jul/2016
Issuer …

Chris Evans
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How do we check ELB **own** instance health/connectivity?
Please note that this question is about ELB itself, not EC2 instances behind ELB
Situation
We have experienced the following ELB issue recently:
50% of requests were did not reach our backend and it seems that ELB itself too
ELB monitoring via AWS…

Dmitry Mukhin
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AWS cloudfront with SNI + ELB with 443 to 80 redirection to EC2 issue
I have configured web server front ending with AWS ELB and CloudFront. I have deployed SSL certificate on load balancer (ELB) for HTTPS connection.
We have set up 2 listener protocols:
Source -> 80 -> ELB -> 80 -> EC2 web server
Source -> 443 ->…

Tejas Sheth
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1and1 domain redirected to Amazon ELB: 1and1 free email accs management
The web is behind an elastic load balancer in Amazon. I registered the domain with 1and1 which offers 10 free email accounts for the domain so I don't have to care about email servers for the moment.
The current problem is 1and1 can't redirect…

Mike Molus
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Redirect loop when forcing HTTPS
I am using the following to force HTTPS on my main website.
### Force SSL
RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
If you want to view the full htaccess file, I have placed it below:

Abs
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Amazon ELB + EC2 Header mismatch
Preamble:
I have an AWS Elastic Load Balancer in front of a Single Amazon EC2 instance.
I have 3 other EC2 instances sending requests via curl to the Load Balancer.
Direct requests to the EC2 ip has stable response times, and an acceptable…

EyeOfTheHawks
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What's the difference between a private and public subnet?
For the purposes of learning, I'm trying to setup a public/private VPC in AWS without using the wizard, and I'm trying to determine how AWS decides if a subnet is private/public.
For argument sake, let's say I have in my vpc 1 ig, 2 routing tables,…

Drew
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AWS Elastic Load Balancer : white list only my IP
My objective:
To make my AWS Elastic Load Balancer hittable by only traffic from my ip.
What I have tried:
created a security group in EC2 security groups
set an inbound rule that allows all traffic from my ip [all, all, all, /32]
assigned this…

mconlin
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Nginx : AWS Route 53 : ELB : naked redirect
Setup
I have two rails app instances running in Opsworks Layer.
I am using Route 53 and an ELB to route traffic to my Layer.
Objective
To redirect naked domain traffic to my www domain.
chicken.com -> www.chicken.com
What I tried
I Alter my nginx…

mconlin
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1 answer
Determine EC2 instance's load balancer automatically
Is there a way to automatically determine what the load balancer, if any, of a given EC2 instance is? I.e., have it ask "who is my LB and what is its service IP?". I was thinking of the instance metadata service but the LB "in front" of the instance…

Friedrich 'Fred' Clausen
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ELB and Backend Authentication with Apache 2.4
I tried looking at AWS guides, and other things but can't seem to figure this one out. When using ELB there is a backend authentication option. I want to enable it, but I am not sure what certificate to use. We currently have a key from GoDaddy…

David Eisen
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Allowing multiple IPs behind ELB in Apache configuration
I have multiple application servers running as EC2 instances. Only certain bare-metal servers running elsewhere are allowed to contact them and their IPs whitelisted explicitly in the httpd.conf @the application servers.
I want to move the…

silvester anfang
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Allow ELB healthcheck against nginx but block proxied connections
I have a daemon process that polls a page to monitor system status, as long as everything is happy magic_check.html will exist. As soon as something goes down the file is deleted.
I have the AWS ELB configured to check this URI and it works well,…

Ashex
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2 answers
Stagger automatic windows updates for ec2 instances
I have several Windows ec2 instances that are controlled by an ELB (Elastic Load Balancer). These instances are scheduled to install any new windows updates once per day during non-peak hours.
Automatically installing Windows updates often causes…

cseaton
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