As mentioned above, Hashtopolis works in two parts: server and agent. In the server, you can control the agents and their tasks. On the instances with powerful GPUs, you will install those agents to connect to Hashtopolis server.
For the Hashtopolis server, we have installed it on an instance on DigitalOcean. The agents, however, need to be installed on instances that have powerful GPUs to utilize Hashcat strength to the fullest.
Where to Rent Powerful GPUs?
There are public hosting services that provide you with machines with powerful GPUs, like Amazon and Vast.ai. In our case here, we will use Vast.ai as it is easier and cheaper.
As you can see below from Vast.ai, you can rent any machine based on the hardware you need (the more powerful the more expensive the rent):