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

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740 views

Using htaccess with Elastic Load Balancer and Route 53 [closed]

I have transfered my DNS to Route 53 and currently use an alias record to point my www.domain.com and domain.com to my Elastic Load Balancer. Both work great but my problem is when I try to use an ...
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1answer
539 views

Do AWS ELB, HAProxy or nginx drop the connection if a backend servers is down?

I wonder which ones of the following load balancers is able to detect an unavailable backend machine, and redirect the connection to another server without dropping the request: nginx AWS Elastic ...
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1answer
2k views

Amazon ELB and multi domain on Nginx server

I have an EC2 instance running Nginx with several domains. My config starts like this: server { listen 80; #disable_symlinks off; server_name _; #allow few domains #Adding 'www.' to ...
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3answers
641 views

How to set Load Balancers onto EC2 (installed Apache with SSL)?

I am running several EC2 instances behind ELB load balancers. Can I insert my SSL certificate into Apache server without insert my cert into the load balancers? How should I set for the load ...
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1answer
3k views

ELB Instance Out of service

After implementing ELB and Autoscalling on Amazon AWS. There's a wierd issue happens and we don't know either the reason or the fix. We installed Auto Scalling configuration to add instance of AMI ...
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1answer
102 views

Control ELB by Traffic load

We recently used Amazon AWS. Now our application is on the cloud. And we configured ELB with Auto Scalling and it works fine. We need to modify the ELB and control how it works. I checked all the ...
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3answers
5k views

How to configure my Elastic Load Balancer to balance SSL traffic?

I'm totally lost so I apologize if I'm not making sense. I need to create a load balancer in EC2 for our application servers. I'm trying make the ELB balance traffic over SSL (8443). However, it's ...
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1answer
1k views

Is there a limit on the length of URLs when using Amazon ELBs? If so, is there a way to increase it?

We appear to be encountering an error due to Amazon ELBs truncating a long (over 1K characters) URL. I have searched through the usual suspects, but can't find any discussion of URL length limits for ...
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1answer
140 views

“Big picture” to use Amazon load balancer solution for blog

I have a client with a popular Wordpress blog that experiences occasional short-term traffic spikes (when the site is promoted on national TV). The blog is already hosted on an Amazon EC2 instance, ...
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2answers
6k views

How to ping / traceroute an AWS ELB

Amazon's load balancers have a network security policy which swallows ICMP packets for both ping and traceroute. It is listed as security group amazon-elb/amazon-elb-sg. Personally I find these ...
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1answer
491 views

Automatically remove instance from ELB on server stop

How to automatically remove an instance from its LoadBalance (ELB) when you stop the instance? I've tried to create a shutdown script and put it on chkconfig, but it is not working: #!/bin/bash # ...
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2answers
1k views

AWS Elasticache PHP Sessions with ELB and Web Servers at different Data Centres

I'm running an AWS Load Balancer with Web Servers at different Data Centres. I need to start using PHP Sessions on Elasticache to Centralize Session Management. I can create an a 2 node Elasticache ...
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1answer
1k 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 ...
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1answer
319 views

strange lines in nginx log

I'm running nginx 1.2.6 behind amazon elb. Periodically I see the following lines in nginx access.log: 10.28.135.252 - - [14/Jan/2013:14:20:07 +0000] "-" 400 0 "-" "-" "-" 10.28.135.252 - - [14/Jan/...
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1answer
1k views

How to install UCC GoDaddy SSL Certificate on Amazon EC2 ELB

I've read through this: Install SSL on Amazon Elastic Load Balancer with GoDaddy Wildcard Certificate but am still a bit unsure. I have a subdomain: platform.mysite.com that is pointed to an ELB in ...
0
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1answer
625 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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2answers
4k 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 + ...
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3answers
2k 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 ...
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1answer
1k views

How to setup nginx to redirect to https for certain host when behind an SSL termination load balancer

Hello I have a web server (running nginx) in EC2 behind an ELB (load balancer) which terminates SSL connections. If there is a request to www.domain.com it will go http to the ELB and be passed to ...
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1answer
121 views

AWS - point my zone apex (mydomain.com versus www.mydomain.com) to Elastic Load Balancer

I'm having trouble setting up an Route53 Apex Zone that point to an ELB and works on www and non-www domain names. The domain name is datingjapan.co In Route53 I have clicked new record set added ...
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1answer
505 views

Odd behavior of setting REMOTE_ADDR between Apache, Nginx, and AWS ELB

I have encountered a strange issue and am curious if others have encountered this as well. and if there is absolutely anything that can be done.. We have a set up where we have multiple AWS EC2 Linux ...
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1answer
375 views

Time between AWS Notifying of Scale Down and Terminating instance

Here is the scenario, there are multiple EC2 instances behind a load balancer. When traffic dies down, the SCALE_DOWN policy is triggered from a CloudWatch alarm. What I would like, is for the ...
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2answers
2k 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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1answer
203 views

Guaranteed HTTP forwarding frontend service (reliable cloud load balancer) [closed]

My situation is fairly simple and, I guess, it's encountered fairly often. I have several projects which all look pretty much the same - a single project consists of: Static content servers - there ...
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3answers
8k 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 !/...
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2answers
200 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 ...
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1answer
1k views

Autoscaling EC2 with NFS mounts

I'm trying to set up a shared filesystem on EC2 and I've read tutorials such as this: http://blog.ronaldmccollam.com/2012/07/configuring-nfs-on-ubuntu-in-amazon-ec2.html In step 2 it talks about ...
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3answers
1k 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 ...
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1answer
772 views

Load balancer with Varnish round robin

I'm looking at a setup of an existing application. This application makes use of Amazon's elastic load balancer and then it goes through varnish. Within varnish, we are making use of the round robin ...
0
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1answer
588 views

AWS ELB Not working as desired

Trying to load balance my app with the use of an AWS Elastic Load Balancer. The app is a custom TCP-based sender/receiver. In any case, ELB seems to send 100% of the traffic to one machine, ...
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1answer
176 views

Amazon ELB and use of address / server names across multiple servers

I am setting up Nginx servers behind the ELB. I set up so that api.app.com points to an ELB. I wonder which addresses I should use for remote connections, Nginx settings etc.. 1) For example, in ...
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1answer
198 views

When using a load balancer how do find out what ec2 instance you're accessing from the browser?

Is there a way to determine the ip address of the ec2 instance you're accessing from the browser?
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1answer
272 views

Cheapest High Available Web Server [closed]

I would like to create a high-available setup (e.g. a small cluster) for a webserver, i.e. it will run Apache, PHP and MySQL. There will be between 2-8 small websites running with only very little ...
2
votes
1answer
427 views

Application reports timeouts. However nginx has no record or log

We are serving Django via nginx/uwsgi. We use AWS ELB behind a VPC. This is a webservice to Mobile clients. We had reports of timeouts during development so we have added a concept of a request_id ...
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2answers
2k views

Providing a static IP for resources behind AWS Elastic Load Balancer (ELB)

I need a static IP address that handles SSL traffic from a known source (a partner). The reason the IP needs to be static is that the partner requires this in order to maintain the PCI compliance. ...
2
votes
1answer
491 views

AWS ELB + ejabberd server

I have two servers in AWS EC2 ejabberd. I'm trying to set up an ELB to manage traffic, but I can not connect when I put a ELB "front" of EC2 instances. DNS settings, I changed the A record for the ...
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1answer
490 views

ELB Setup for SSL is not working for apache redirect

I have configured ELB with SSL certificate. Listener configuration for ELB is shown below -- 443 (HTTPS, Certificate: www.xyz.com) forwarding to 80 (HTTP), 80 (HTTP) forwarding to 80 (HTTP) Domain ...
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1answer
296 views

Sync web directories over multiple servers on Ubuntu

Lets say I have 3 servers, One is a development server, prototype code goes here. When it's done I've been using scp to push that file to the live server but now I'm looking into multiple live server ...
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3answers
12k views

Install SSL on Amazon Elastic Load Balancer with GoDaddy Wildcard Certificate

I'm a bit stuck installing an SSL Cert on an AWS Elastic Load Balancer. I have a wildcard certificate from GoDaddy and need to point it at the ELB. I have run the command (I ran it on one of the ...
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4answers
4k views

AWS elastic load balancer basic issues

I have an array of EC2 t1.micro instances behind a load balancer and each node can manage ~100 concurrent users before it starts to get wonky. i would THINK if i have 2 such instances it would allow ...
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1answer
494 views

Amazon ELB page 'recieving' time very slow, running EC2 + spot

I have an Elastic Load Balancer paired to a set of instances one is persistant and the other is a variable number of spot instance. When i access the servers directly using their end points, the ...
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votes
1answer
4k views

How to block Nginx access log statements from specific user agents

I am looking to turn off logging in the Nginx access log file from specific requests from http user agents. Basically from the Amazon ELB Health Check and our external (Pingdom) monitoring. Since ...
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1answer
173 views

How to find out the location of Google IP number: e.g. 209.85.143.94

I am building DNS service and I need to find out location of DNS servers querying me. Apparently anyone who is using Google public DNS like 8.8.8.8 is coming from Google /17 network, and if I do geoip ...
3
votes
1answer
522 views

Amazon AWS: SSL in our testing environment

My company has a running business web service on AWS which uses a wildcard SSL certificate (works for *.example.com). Multiple partners have subdomains and need SSL (https://partner1.example.com, ...
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3answers
3k 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 ...
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2answers
1k views

Disable https for certain path in nginx results in instance behind ELB going into redirect loop

I am using elb terminated ssl. I want to force /product/performancesummaries/ to be HTTP only. Here is my current configuration that I am playing around with: user www-data; worker_processes 2; pid /...
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1answer
574 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. I'...
5
votes
1answer
853 views

Unicorn behind ELB, no nginx

If I understand Unicorn right (and in particular from their philosophy doc) it seems like Unicorn was really designed to operate behind a reverse proxy like nginx. My question is: can I drop nginx ...
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2answers
1k views

Amazon VPC ELB SSL port redirection

I have an Elastic load balancer with 2 ports open, 80 and 443. 443 has SSL on it. both 80 and 443 are being redirectedt to internal servers port 80. The issue is that i want to run my site only on ...
4
votes
2answers
5k views

Can Elastic Load Balancers correctly distribute traffic to different size instances

Just been looking into Elastic Load Balancers. As I understand it they just do round robin, evenly distributing connections to the servers behind them. So what happens if you have different size ...