About Greenlight Human Capital
- Rapidly expanding with strong growth predictions
- Sites and staff are geographically spread
- Head office in Newcastle
- Requirement for new offices
- Application not scalable over WAN

This case study was presented at the Intro to the AWS Cloud event held in Newcastle on the 12th of November 2015.
The Challenge
- Anywhere access
- Platform independent (BYOD)
- Secure and controlled
- Legislative data retention requirements
- Rapid scalability
Why Amazon Web Services
- Needed to deliver a scalable hosted desktop solution
- Solution needed to be redundant, fault tolerant, scalable and cost effective.
- Enable long term backup and archival of data.
- Proven and secure platform
The Solution
- Built in AWS’s Sydney Region, leveraging Citrix’s XenApp and Google Apps technologies.
The Benefits
- Scalability
- Redundancy
- Elastic cost
- Elimination of Capital Expenditure (CAPEX)
- Mobility
Migration
- Rebuild and migrate
- Incremental backup to S3 during migration
- No “Lift and Shift”
Security
- SSL tunnel from client to server
- Bastion host access
- Strict lockout and password policies
- All access is controlled via Active Directory
- Automated management and auditing of log files
- Restricted access via IAM (MFA)
Provisioning
- Create a session host AMI
- Utilise Group Policy
- Build session Hosts in Worker-Groups
- Leverage AWS SDK’s and API’s
- Best practice guides and whitepapers
Next Step
- Integrate with onsite services
- Integrate with Amazon Workspaces
- As a shared service model