My aim is to create a resilient hosting platform for my projects while keeping costs low. Currently, I have purchased a dedicated server from Hetzner and VDS from DigitalOcean. On the Hetzner server, DNS Manager and VM Manager are up and running with the first DNS server launched in DNS Manager and multiple virtual machines launched in VM Manager. The second DNS server is running on the VDS at DigitalOcean.

The challenge lies in ensuring that even if the web server fails, the system continues to function without any interference, or at the very least, essential services such as file storage and email continue to work. However, I would like to achieve this without having to rely on third-party services for DNS servers, mail or hosting. Any ideas on how to accomplish this with minimal financial burden?

Essentially, the ideal approach to achieving full fault tolerance is through geographical dispersal of web sites where everything is duplicated at least twice. Servers should be well-balanced with hot and cold backup and several independent backups should be stored far away from data centers in case of severe circumstances.

For simpler services like mail and DNS, standards dictate that two servers are necessary, but for other services such as storage or DBMS, it may be feasible to use cloud threading such as Amazon or Azure, depending on the requirements and initial configuration.

Our newest Unbreakable clusters are now available and can be utilized to establish a high availability infrastructure that will guarantee the continuity of business processes. By leveraging these autonomous clusters, virtual machines can be smoothly restored to a healthy server in the event of a physical server failure, with minimal downtime.

In order to create this next-gen product, we thoroughly analyzed the performance and best practices of our previous version, VMmanager Cloud, as well as studied our competitors like Proxmox, OpenStack, VMware and more.

One approach to achieving resiliency and cost-efficiency in your hosting platform is through implementing a load balancing and failover mechanism. Here's a potential solution:

1. Load Balancer: Set up a load balancer that distributes incoming traffic across multiple web servers. This ensures that even if one web server fails, the others can handle the traffic seamlessly. This can be achieved using various open-source software like HAProxy or Nginx.

2. High Availability Database: Configure a high availability database cluster, such as MySQL or PostgreSQL, to replicate data across multiple database servers. This way, if one database server goes down, the others will continue serving requests without interruption. Tools like Galera Cluster or PostgreSQL's built-in replication can help achieve this.

3. Storage Redundancy: Utilize distributed or replicated file systems for storage to ensure redundancy. You can use technologies like GlusterFS or Ceph to provide distributed and fault-tolerant storage across multiple servers.

4. Self-hosted DNS and Mail Servers: Instead of relying on third-party services, set up your own DNS and mail servers on the Hetzner and DigitalOcean servers. You can use software like BIND or PowerDNS for DNS, and Postfix or Exim for mail. Ensure proper configuration and synchronization between the DNS servers.

5. Monitoring and Automatic Failover: Implement a monitoring system that regularly checks the health of your web servers, database servers, DNS servers, and other critical services. If a failure is detected, the monitoring system can automatically trigger failover mechanisms to switch to healthy servers.


Here are a few more suggestions to further enhance the resilience and cost-effectiveness of your hosting platform:

1. Geographic Redundancy: Consider setting up your servers in different geographical locations to increase redundancy. This can help mitigate issues like power outages, natural disasters, or network failures affecting a single location.

2. Backup Solutions: Implement a robust backup strategy to ensure data integrity and availability. Regularly back up your critical data and configurations to off-site storage or cloud-based solutions. Tools like rsync, Bacula, or even cloud storage providers can be used for this purpose.

3. Containerization and Orchestration: Containerization technologies like Docker can provide isolation and easy replication of services across multiple servers. Use container orchestration tools like Kubernetes or Docker Swarm to manage and scale your containers, ensuring resilience and efficient resource utilization.

4. Auto Scaling: Implement auto scaling mechanisms to dynamically adjust resources based on workload demands. This way, you can handle traffic spikes without manually scaling up or down, minimizing costs during periods of low activity.

5. Monitoring and Alerting: Set up comprehensive monitoring and alerting systems to proactively identify and address any issues. Use tools like Prometheus, Grafana, or Nagios to monitor server metrics, application performance, and service availability. This helps you detect problems early and take corrective actions before they impact your users.

6. Regular Security Audits: Conduct regular security audits and updates to protect your infrastructure from vulnerabilities. Stay up to date with security patches, use secure protocols, and follow best practices for server hardening.

Remember to balance the potential financial burden of implementing these solutions with the benefits they provide. Prioritize the critical services that must remain available and allocate resources accordingly. Regularly review and refine your setup as your requirements evolve over time.

Fault-tolerant webhosting platform helps to continue webhosting services in case of any one or more components leads to failure.