AzureDevOps Server 2020 with Azure Application Proxy

HeikeHofmann To set up external access, you need to configure your network and firewall to allow incoming connections to the Azure DevOps Server, and then configure the Azure DevOps Server to accept connections from external clients. The exact steps to configure external access vary depending on the specific network and firewall configurations, but typically involve opening specific ports, creating firewall rules, and configuring a URL for external access.

It's important to keep in mind that setting up external access for an on-premise Azure DevOps Server can introduce security risks, so it's important to follow best practices for securing the server and data. This may include using SSL certificates, using secure authentication methods, and monitoring network traffic for suspicious activity.