Enhancing Security on Indonesian E-health Cloud

The cloud computing adoption in e-health has improved health services and research. An e-health cloud deployment model for Indonesia have been proposed. In this work, we simulated the e-health cloud model and implemented virtual firewalls to enhance its security. We examined the performance of the firewalls under a distributed denial of service (DDoS) attacks. The virtualization environment for the cloud utilized Proxmox VE, and the firewalls applied a modified ConfigServer & Firewall (CSF). DDoS-blocking scripts are modified to block IPs from attackers. First, we investigated the cloud without virtual firewalls. The average time a server could survive a DDoS attack is examined. Second, the virtual firewall capability is verified. The result shows that the average time of a server surviving a DDoS attack is 197.26 seconds, with a standard deviation is 52.99 seconds. The virtual firewall managed to block the attacker's IP address, and the server could cope a DDoS attack.