Metadata:
- Operating System: CentOS 6
 
- Installation method: install.sh script
 
- AWS CLI Version: latest
 
We have a legacy dependency on CentOS 6, so to make this system work under v6, the following changes are required:
install_configure_selinux.sh script commented out (no NIS boolean in v6) 
sed -i'' 's/AuthorizedKeysCommandUser/AuthorizedKeysCommandRunAs/g' /etc/ssh/sshd_config 
Tested, OK. Happy to submit a PR if this is of interest to anyone.