Tag Archives: amazon

Amazon Load Balancer setting SSL with Certificate Chain

First of all, let’s assume you have the following files with you:

  • yourdomain.key Your domain’s private Key
  • yourdomain.crt Your domain’s public Key
  • sf_bundle.crt The Certificate Chain

Step 1 – Preparing the files

Create a PEM-encoded version of your private key

1
openssl rsa -in yourdomain.key -outform PEM -out yourdomain.pem

Step 2 – Setting the certificate on Amazon

On your Amazon account go to Load Balancers > Your Load Balencer > Listeners

Load Balencer Protocol: HTTPS
Load Balencer Port: 443
Instance Protocol: HTTP
Instance Port: 80
Cipher: ELBSample-OpenSSLDefaultCipherPolicy
Certificate Name: Yourdomain.com
Private Key: <past yourdomain.pem file here>
Public Key Certificate: <past yourdomain.crt file here>
Certificate Chain: <past sf_bundle.crt file here>

Note: This means every request to the Load Balancer will be made on HTTPS. The traffic from the Load Balancer to the destiny instance will be regular HTTP. This way you don’t have to setup any certificate on your instance’s Apache/Nginx web server.

Step 3 – Test

If everything went as expected you should be able to open https://yourdomain.com.

Now, use a SSL check tool to see if everything is OK: http://www.sslshopper.com/ssl-checker.html#hostname=https://yourdomain.com

You should see something like this:

2833574

 

Amazon RDS Tunnel (Access from your desktop)

If you need to access an Amazon RDS instance locally you can:

  1. Add your IP on the RDS Security Group
  2. Create a tunnel to the RDS

Best chances are you have a dynamic IP address, so you already know that option 1. is a real pain.

You can create a tunnel (2.) by performing the following command on a new terminal window:

1
ssh -l <username> -L 33060:<ec2_rfc_ip>:3306 -N <ext_hostname>

As long as you keep this window open, you’ll be able to access the RDS by connecting to localhost on port 33060: