Tag: aws

  • EBS Volumes – deleteOnTermination ?

    When using EC2 instances with EBS backed storage, whether or not your instances are setup to delete their EBS volumes on termination can be a big deal — especially if you burn AMIs and provision instances over and over. You could find yourself with many EBS volumes that are unused and pay for lots of […]

  • AWS VPC DB Security Group

    The other day I was working with a client and creating a CloudFormation template that used RDS instances within a VPC. I found that while creating the DB security group object that I was getting an error like the following: STACK_EVENT CloudFormationName DBSecurityGroupName AWS::RDS::DBSecurityGroup 2012-12-17T22:30:20Z CREATE_FAILED Please see the documentation for authorizing DBSecurityGroup ingress. For […]

  • TLS Issue with Amazon OpenLDAP 2.4.23-15

    Today I had an issue getting a good TLS connection from an OpenLDAP client to an OpenLDAP server on an EC2 instance using the packages supplied by Amazon. The problem packages were: openldap-2.4.23-15.13.amzn1.x86_64 openldap-clients-2.4.23-15.13.amzn1.x86_64 The problem was resolved through updating to version 2.4.23-20 via: yum -y update openldap-clients The problem was produced via the following […]

  • AWS Elastic Load Balancing in a Private Subnet

    I recently learned a valuable lesson when setting up load balancing using an Elastic Load Balancer within a Virtual Private Cloud using public and private subnets and a NAT host. When creating the ELB, be sure to create it within the public subnets and not the private subnets where the instances that will be attached […]