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

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10 views

Amazon EC2 responds very slow sometimes

I have setup a PHP application on Amazon EC2. Webserver is Apache and Database is MySQL. The setup runs fine on the staging (dedicated server). But, the response for the same code base on EC2 is very ...
0
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1answer
21 views

How to manually drain ELB connections for a EC2 instance?

I have connection draining enabled for a ELB. According to the documentation at http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/TerminologyandKeyConcepts.html#conn-drain, a ...
1
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1answer
79 views

Is AWS ELB a viable replacement of RDGW

tl;dr Is Amazon Web Services Elastic Load Balancer a viable replacement for Remote Desktop Gateway? short enough; did read My client currently uses a remote desktop gateway with roughly 10 remote ...
0
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0answers
29 views

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 ...
1
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0answers
34 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
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1answer
44 views

Solution for PHP / MySQL website loading fast in multiple regions [closed]

I host am ExpressionEngine based website on a single Amazon EC2 instance in the US East (Virginia) region. I use Ubuntu. The website allows members to post their content, and displays it for other ...
3
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3answers
904 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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2answers
44 views

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. ...
0
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1answer
23 views

Setup SaaS test environment with EC2 and Nginx

I need help to setup a test environment under Nginx that is able to target a specific EC2 instance. I am using Amazon's Elastic Load Balancer and auto scaling to manage my EC2 production instances. ...
1
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0answers
126 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. ...
0
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0answers
25 views

AWS ELB Monitoring - instance state “Unknown”

We have a nagios script (python) which monitors our AWS ELBs and alerts if there are unhealthy instances. It has been working fine for some months. Over the last week or so, we've started receiving ...
0
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1answer
64 views

ELB Health Checks incorrectly failing / being unhealthy

Over the weekend, our instances have started being marked as unhealthy, and not being enabled within the load balancer. When going to the public DNS of the instance, followed by the healthcheck.html ...
0
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1answer
41 views

How to add HTTPS to Elastic Load Balancer?

I'm using boto to create an Apache http server that "hides" behind an AWS Elastic Load Balancer (ELB). However, the ELB DNS address is functional only when I specify port 80 (http) in its security ...
0
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1answer
68 views

Apache config for heartbeat and proxy pass through to ELB

I am running Apache 2.2.15 on Linux in AWS using ELBs. My goal is to provide two functions: 1) Heartbeat page for my ELB to check to see if Apache is running (/healthcheck.html) 2) For all other ...
0
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2answers
35 views

AWStats LogFormat for AWS Elastic Load Balancer

Hoping someone can point out what is wrong with the LogFormat I'm attempting to use with the access logs generated by Amazon ELB. Multi-line for ServerFault readability: %time5 %elb %host %host_port ...
6
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2answers
1k views

How can I setup SPDY with Jetty behind Amazon's ELB?

I want to deploy SPDY, but I'm using Amazon's ELB TCP routing. The ELB also handles the secure connections for us. How can this be configured on the jetty side?
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0answers
22 views

Force https redirection behind aws ELB [duplicate]

I am trying to do force https redirection behind aws ELB. ie: http://example.comhttp://www.example.com should be redirected to https://www.example.com . Is this possible using route53 Apex Records. If ...
0
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0answers
29 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 ...
1
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1answer
77 views

Why is my instance failing ELB health checks when adding it to the load balancer via Ansible?

I am trying to add an EC2 instance to an Elasitic Load Balancer using an Ansible playbook, with the ec2_elb module. This is the task that should do this: - name: "Add host to load balancer {{ ...
1
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1answer
38 views

Elastic Load Balancer and Varnish on Each Node

We want to install Varnish on our nodes that are handled by an Auto-Scaling Group and ELB. These servers currently grow and contract based on load from 2-10 nodes. We do not want to have another ...
0
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2answers
75 views

Customize log entry for AWS ELB for real user IP

I would like to change the logging format for AWS ELB, in order to log the real user IP. My current server setup contains multiple layers of proxies as followed: CloudFlare -> AWS ELB -> Nginx (EC2) ...
1
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2answers
178 views

Amazon CloudFormation: How to get an ELB's private IP for a specific subnet?

TL;DR - Is it possible for a CloudFormation template to insert the subnet-specific internal IP address of a specific ELB into the UserData of an instance within that subnet? We have a fleet of EC2 ...
4
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2answers
3k views

Force HTTPS with AWS Elastic load balancer

I need to redirect all incoming HTTP traffic to HTTPS on my elastic load balancer. I tired using Apache mod_rewrite: RewriteEngine On RewriteCond %{HTTP:X-Forwarded-Proto} !https RewriteRule ...
5
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2answers
2k views

What algorithm does Amazon ELB use to balance load?

I found this in the official ELB documentation By default, a load balancer routes each request independently to the application instance with the smallest load. but an article on Newvem says ...
0
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1answer
169 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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1answer
105 views

AWS ELB with SSL to non SSL backend and jenkins - tomcat configuration

I'm setting up Jenkins with Tomcat on AWS behind an ELB. I want ELB to terminate SSL connections and make a non-SSL connections to the backend jenkins on 8080. My connection looks like -- Incoming ...
0
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1answer
33 views

Amazon ELB in Australia does not work reliably

I have a user in Australia who cannot access our site. Our site sits behind an AWS ELB which seems to work fine. While troubleshooting his machine remotely I can see that ELB issues two IP addresses ...
2
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3answers
81 views

Application access via AWS Load Balancer with autoscaling

I am configuring a test AWS architecture for a web application that I plan to migrate from a dedicated hosting service to AWS. What I have now is as follows : One MySql RDS, where my application ...
0
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2answers
59 views

How to set inbound rule for Amazon ELB based on path

I have a set of EC2 instances and a load balancer in front of them. I set up a security group for the ELB and set an inbound rule to allow HTTP traffic from anybody. However I would like to restrict ...
2
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1answer
203 views

What is best practice for upgrades with AWS autoscaling and database migrations?

I would like to use a combination of an ELB and AutoScaling for a web application. For upgrades to the web application that don't involve changing the database, I can simply rotate all the instances ...
0
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0answers
20 views

How can I use ELB load balancing metrics in autoscaling group policy?

How do I configure an auto-scaling policy to work off the latency cloud watch metric of an associated ELB. I have looked at all the example cloud formation scripts and they only work upon metrics from ...
0
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3answers
922 views

CloudFront Dynamic Content & Apache using Multiple Virtual Hosts

I've tried to setup CloudFront to point to an Elastic Load Balancer. I can see the requests are reaching the web server (which as multiple Virtual hosts configured) however the requests always end up ...
0
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0answers
78 views

Load balanced EC2 instances for high performance hosting?

I have a fairly hefty Dell machine with dual quad-core cpus and 32GB memory. On that machine I host a pretty busy forum, but the one machine does everything; web, cache, db, sphinx, etc. I also have ...
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0answers
32 views

In Route53, balance traffic between ELB and other IP v4 addresses

Using Route53, is there a way to round-robin to a combination of ELB's and IP v4 addresses? I have three load balancers, two are external to AWS and one is an AWS ELB. I want all three load balancers ...
3
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3answers
201 views

Is AWS's Elastic Load Balancer a single point of failure?

I am looking at moving our application up to Amazon Web Services. The plan is to have all of the EC2 instances mirrored across two availability zones. Due to data transfer costs, we will be staying in ...
0
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1answer
84 views

How do I troubleshoot latency issues with elastic load balancer (ELB) in Amazon AWS?

We have a web app and API hosted at Amazon AWS, with three environments - development (dev), testing/staging (uat), and live. Each environment has a load balancer, two EC2 instances and an RDS ...
0
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0answers
55 views

AWS ELB health check potentially remove all instances

So, when using AWS ELB, there's a health check url we use to ping db server / check out bound connection, etc. If there are unhealthy instances, they are removed. But if the db server is down, our ...
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4answers
1k views

Using ELB Across Multiple Regions

Let say I have the website domain http://myawesomesite.com, and to start I have a ELB setup on the US-EAST Region with 2 instances running my application. As the site becomes more awesome and I ...
2
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2answers
96 views

Why can't I create an Alias Resource Record Set for an EC2 instance [closed]

I have been working with AWS for over a year, setting up EC2 instances, domains, ELBs, etc. When I want to assign a subdomain to an EC2 instance, I have to create an elastic IP (that I pay for), ...
0
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1answer
289 views

Instances slow when connected to AWS load balancer

I have setup 5 t1.micro EC2's behind an AWS load balancer. All the instances slow down once they are connected to the LB. Eight out of 10 requests takes more than 30s even when I do the requests ...
0
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1answer
168 views

AWS ELB stops showing instance as healthy and access logs show no entries

I have a load balancer configured in a public vpc subnet to route traffic from HTTPS (443) to an instance in a private vpc subnet over HTTP (8080). The setup worked fine for about 24 hours, until the ...
11
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3answers
597 views

How can I use https with AWS Cloudfront without paying $600 to upload my cert?

I can host a dynamic website through Amazon CloudFront because they have CNAME Wildcard Support. However, some pages of my Site use HTTPS. Amazon have some documentation about how to associate your ...
0
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0answers
41 views

No longer can get nginx.conf to respect my redirect rules

I want to redirect all sites and subdomains to one https domain name. I'll use https://my-site.com as an example. Previously I had all the redirection working with the following code: server { ...
1
vote
2answers
1k views

Reverse Proxy Server Cloud Architecture (AWS + nginx)

Currently I cache responses using nginx + fastcgi. I'm in the process of moving my app to AWS. I'm architecting a horizontally scaled approach, but trying to determine where best to put nginx + ...
1
vote
2answers
556 views

How do I rotate an SSL Certificate as requested by AWS

Amazon AWS sent an email today that users using Elasic Load Balancing (ELB) service with SSL certificates should "Rotate" them for precaution (Heartbleed bug). How exactly do I rotate an ssl ...
19
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1answer
4k views

Does Heartbleed affect AWS Elastic Load Balancer?

The Heartbleed OpenSSL vulnerability (http://heartbleed.com/) affects OpenSSL 1.0.1 through 1.0.1f (inclusive) I use Amazon Elastic Load Balancer to terminate my SSL connections. Is ELB vulnerable?
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3answers
241 views

Get AWS ELB name from an attached instance

I created one ELB and attached a few instances to this ELB. So when I login into one of these attached instance, I would like to type a command or run a nodejs script that can return me the its ELB ...
0
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2answers
47 views

How do I configure AWS to host my apex domain?

I have several apex domains that all point to the same website. I am migrating it to AWS, and I need to figure out how to route requests to my ELB. I know I can't create a CNAME, but what are my other ...
1
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1answer
304 views

How can I determine what caused a sudden increase of traffic to my AWS servers?

I recently set up a cloud system on Amazon AWS for a big website. I usually use Elastic Beanstalk to deploy the application (written in Java Spring) and it's currently running on 4 micro instances. ...
0
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1answer
91 views

Should I stick with ELB? How bad is a DDoS attack of 2 million packets per second?

I have an Elastic Load Balancer (ELB) on Amazon Web Services under DDoS attack (specifically a SYN flood) that Amazon has said occasionally hit over 2.4 million packets per second. While it hasn't ...