ELB is Amazon's managed Load Balancer service, used in conjunction with its EC2 virtual machine cloud hosting service.

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5
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2answers
2k views

Redirect all http requests behind Amazon ELB to https without using if

Currently I have an ELB serving both http://www.example.org and https://www.example.org. I would like to set it up so any request pointing to http://www.example.org is redirect to ...
1
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2answers
62 views

Can we launch website without AWS Load Balancer?

I've requirement that I want to publish a small web CMS in a CLOUD environment. Therefore I thought since I've a AWS account and go for it, but my client does not want bear any high cost. So I'm ...
1
vote
1answer
306 views

The site is using outdated security settings that may prevent future versions of Chrome from being able to safely access it

We're using an AWS ELB to do SSL termination and are having an issue where Chrome is displaying "https" in red with a strikethrough. It says "The site is using outdated security settings that may ...
1
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1answer
84 views

CloudFormation with an ELB and its public dns

I'm using Cloudformation to build a load balanced stack. My concern is that each time the stack is recreated, the ELB public url will change, which will require a change in the website's route 53 ...
0
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1answer
27 views

Configure a transparent Elastic Load Balancer

I want to create an Elastic Load Balancer in front of my SSL site which simply passes through ports 80 and 443. I do not want my Elastic Load Balancer to have an SSL certificate of its own, I just ...
0
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0answers
19 views

Sitecore and AWS Elastic Load Balancer

My organization is helping to move a sitecore installation from self-hosted to AWS. I'm just a humble system administrator (and one who joined the project half-way through) there is another guy ...
1
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2answers
2k views

Possible for HAProxy to perform a mix of SSL termination and passthrough?

I'm working on analyzing an intermittent load balancing failure in our application. Previously we had been using the AWS Elastic Load Balancer in the following configuration: HTTP 80 -> HTTP 80 ...
0
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1answer
17 views

Do I need “A record” for AWS ELB while I set up CNAME?

I register the domain through GoDaddy. And now i have a AWS EC2 server behind a ELB. I read the document from AWS about setting up the CNAME. which I did. www CNAME elb.aws.address while ...
0
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2answers
34 views

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. ...
0
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2answers
61 views

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 ...
8
votes
2answers
3k views

SSL redirect on EC2 instance behind SSL terminating load balancer

I'm trying to redirect all url's to https in a web application. I have an ec2 instance behind an elastic load balancer. SSL is terminated on the load balancer. Any attempts at redirection end up ...
0
votes
2answers
36 views

Limit ingress to an internet facing VPC-ELB to only another AWS account's instances

In EC2 classic you were about to reference another account's security group in your security group to limit ingress to an instance or ELB to members of that other account's security group. I'd like ...
0
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0answers
38 views

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 ...
3
votes
2answers
536 views

adding an ELB to an existing Auto Scaling group

I just created two new ELBs, and I'm trying to figure out how to add one of them to an existing autoscaling group; so far the only way that this seems to be possible is by recreating the already ...
0
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0answers
11 views

AWS ELB 400 BAD_REQUEST with space at the end of a URI

We're using AWS ELB for HTTP/S load balancing, and we've run into a pretty crazy issue with the ELB. $ curl -i "http://yourdomain.com/ " HTTP/1.1 400 BAD_REQUEST Content-Length: 0 Connection: Close ...
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0answers
28 views

Elastic Load Balancer connection draining causes a blank page for some web sessions

I'm running 3 EC2 instances behind an ELB with connection draining enabled (set to 300ms). When I remove an instance from it, I can see fewer and fewer web requests in the server log until eventually ...
4
votes
3answers
2k views

AWS ELB as backend for Varnish Accelerator

I am working on a large deployment on AWS that has high uptime requirements and variable loads throughout the day. Obviously, this is the perfect use case for ELB (Elastic Load Balancer) and ...
0
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1answer
541 views

Cloud formation - updating a stack behind an elb doesnt update the AMI

We are powering our AWS EC2 instances using cloud formation. We have 3 different stacks - testing, staging and production. Our workflow to update the images for any of the stacks is as follows: ...
0
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1answer
54 views

Disabling SSLv3 in ELB on Amzon linux ec2

Hi I have Elastic Load Balancer on which I've deployed my ssl certificates and when i check on the web it say site is vulnerable because of SSLv3 is enabled on the site. So my question is What ...
5
votes
3answers
6k views

Nginx set_real_ip_from AWS ELB load balancer address

I have a set of Nginx servers behind an Amazon ELB load balancer. I am using set_real_ip (from the HttpRealIpModule) so that I can access the originating client IP address on these servers (for ...
0
votes
2answers
136 views

Single AWS Elastic Load Balancer to multiple EC2 instance pools?

Does AWS Elastic Load Balancer support having a single load Balancer to multiple EC2 Instance Pools? I have three domains: www.example.com api.example.com stats.example.com And I'd like to serve ...
-1
votes
1answer
152 views

Whitelist Elastic Load Balancer based on IP [closed]

I'm serving HTTP traffic on port 80 through an ELB. Since a short time, a growing amount of clients are asking me what our IP addresses are (to harvest data). Apparently they can't whitelist the DNS ...
0
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0answers
21 views

How to target www.example.com\ in RedirectMatch rule?

Particular requests are coming into my site formed as: www.example.com\ The trailing backslash is causing a 503 response to come from the server, which is behind an ELB, ideally I'd send these back ...
0
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0answers
167 views

haproxy proxy protocol x-forwarded-for

I'm using haproxy instances behind AWS ELB. For HTTP Rest, i works like a charm. Now i want to dispatch websockets and have to switch my AWS ELB to TCP mode. I Want to get realip from by backend ...
2
votes
1answer
126 views

ELB - High latency when enabling cross-zone balancing

I'm working on improve our infrastructure reliability in AWS and one of my tasks is enabling cross-zone balancing on our ELBs. Our ELBs receives around 20K request by second on rush hours as well as ...
0
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1answer
76 views

No Data returned from IIS 8 behind Amazon ELB

We have a few Windows 2012 boxes running IIS 8 behind an AWS ELB. On a recent reboot, we lost the ability to hit those servers, via web browser, when connecting through the ELB. If we address the ...
1
vote
1answer
664 views

How to redirect all HTTP traffic to HTTPS for a Django 1.4 application running on an EC2 with nginx/uWSGI behind ELB with an SSL cert

I would like to know how to put my entire django site behind HTTPS. If anyone tries to come via HTTP I want that user to be redirected to HTTPS. Currently, firefox is giving me the error "Firefox has ...
0
votes
1answer
71 views

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, ...
0
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1answer
117 views

VPC public subnet internet access with ELB hooked up

I am attempting to set up a web server (nginx) that needs access to the internet while also being hooked up to an ELB but I am having trouble getting this solution working. Details: 3 public ...
2
votes
1answer
332 views

Amazon ELB HTTPS Not working

I'm trying to get HTTPS working with AWS ELB. I've been trying for about an hour, but no matter what i try, i just get connection timed out when connecting via HTTPS. HTTP works fine, but not HTTPS. ...
1
vote
2answers
1k views

Can't get Network Solutions Certificate chain working with EC2 Elastic Load Balancer

I have a certificate file provided to me which is a wildcard domain name. It comes as both a key and a crt file. No other files were provided. I'm having trouble getting it to work correctly with ...
2
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0answers
39 views

Incremental Subdomain Brute forcing?

Currently looking after a small varnish/nginx webserver group sitting behind an AWS ELB. Monitoring of the primary domain recently picked up a huge number of hits to non-existent sub-domain ...
0
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1answer
199 views

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 ...
1
vote
1answer
88 views

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 ...
0
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0answers
277 views

using nodejs https module with ssl certificate proxy with nginx without adding ssl certificate in nginx

I am using nodejs https module with nginx proxy. I have multiple ssl certificate and I want to run all https sites using node without adding all certificates in nginx ssl server. Is any way to proxy ...
3
votes
3answers
224 views

Block traffic behind AWS ELB

My web servers are behind ELB, I want to block traffic from some specific user agent which is a DDOS attack. Apache always see ip address of ELB as an end user so I tried below attempts: Blocking IP ...
4
votes
2answers
4k views

Setting Up ELB with SSL - What is Backend Authentication?

I started setting up Amazon's Elastic Load Balancing Service for my server pool and I need to setup HTTPS/SSL. I have all my SSL Certificates setup, but then I come to the step for backend ...
0
votes
1answer
102 views

Trouble installing SSL on AWS elb

I'm trying to set up a Gandi SSL certificate but can't get it right from firefox point of view. I installed it on my load balancer (ELB) by converting my certificated to the pem format using the ...
2
votes
1answer
435 views

Resque(Redis) On EC2 Micro Replciated to 3 availability zones

I'm going to build a failover setup for my resque jobs system wich uses Redis as a queue. The idea is to put 3 redises in different availability zones on micro instances and replicate them. Also would ...
0
votes
1answer
84 views

Elastic Load Balancer bandwith vs EC2 [duplicate]

How does pricing with AWS works. By exemple: 1024 Go of Data Transfer Out in their calculator (http://calculator.s3.amazonaws.com/index.html) cost about 120$. If you remove this 1024Go and move it ...
1
vote
1answer
353 views

SSL termination point for AWS EC2? ELB or NginX or..?

I have a number of stand alone java web applications that currently run on different ports and URLS. I would like to expose all these apps behind a single port(443) and map the different public URLs ...
0
votes
1answer
297 views

OpsWorks Auto Healing instances that fail ELB (load balancer) test

From the AWS documentation I understand that some kind of unresponsiveness from an instance will cause it to be terminated. There is nothing in the docs that would suggest that ELB health checks can ...
4
votes
3answers
553 views

AWS ELB poor performance

We're using ELB for SSL termination. Our applications run on EC2 instances behind ELB using HTTP. We're monitoring the application response times and performance hit when going through the ELB seems ...
0
votes
1answer
45 views

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 ...
0
votes
0answers
191 views

How to map multiple AWS LoadBalancer ports to a single instance port?

I have setup like this -- Two ports on my load balancer map to a single port on my instance (the instance checks the HTTP header and issues a HTTP redirect to the HTTPS site for any non HTTPS ...
0
votes
1answer
91 views

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 ...
0
votes
1answer
311 views

ELB and SSLInsecureRenegotiation

I currently have SSLInsecureRenegotiation set to off on my Apache 2.4 Amazon Linux server, but I am still failing over at SSLLabs (Secure Client-Initiated Renegotiation SUPPORTED). Do you know how ...
0
votes
1answer
509 views

Where to start? Multiple Websites, same IP and port, same SSL, on Apache 2.4, Ubuntu, EC2, behind AWS ELB?

Current Situation: My company runs a number of individual EC2 instances hosting unique websites using multiple subdomains off of a common top-level domain. (abc.foo.com, and def.foo.com, for example). ...
0
votes
1answer
443 views

Redirect to HTTPS from my Amazon Elastic Load Balancer

I have a rails app on 2 EC2 Instances running nginx behind an Amazon Elastic Load Balancer. I'd like to force HTTPS, which was working fine before I added in the Load Balancer. Now I can't quite ...
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0answers
90 views

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 ...