It seems like "tubor vpn" might be a misspelling or a specific term that isn't widely recognized. If you're referring to a product, service, or concept, it could be a VPN (Virtual Private Network) with a "Tubor" component, such as a specialized VPN solution designed for particular use cases like corporate networks or remote access. To get more specific information, I recommend checking online for any context or context where "tubor" is used in relation to VPNs.