# Roaming Firewall Shield (RFS) ## Overview Erebrus Roaming Firewall Shield provides an additional layer of security by allowing users to configure and implement their own personal DNS firewall. This acts as a roaming profile firewall that functions even when connected to various nodes in different regions. ## **Functional Overview** * Customizable DNS Settings: Users can configure their preferred DNS servers, potentially enhancing privacy and security by avoiding default DNS providers. * **Firewall Rules:** Users can define firewall rules to block specific domains or categories of websites, offering additional control over their online activity. * **Regional Independence:** The configured DNS Firewall and rules remain persistent and apply regardless of the user's connected node location. ## **Benefits** * **Enhanced Privacy:** Users can avoid potential privacy concerns associated with default DNS providers. * **Increased Security:** Customizable firewall rules allow users to block malicious or unwanted websites. * **Control Over Online Activity:** Users have greater control over the websites they browser, ads and spyware they would like to block and improve browsing speeds. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.netsepio.com/latest/erebrus/roaming-firewall-shield-rfs.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.