# Ontology Nodes ## What is a whitelist in the context of the Ontology node network？ The official **seed nodes** of the node network are considered to be a part of the whitelist. So as to avoid synchronizing the data on a node with other nodes that may have been compromised, or are unsafe in any manner, a node can always choose to synchronize with the **official whitelisted seed nodes** of Ontology. This can be achieved by using the following command when synchronizing a node- ```bash ./ontology --reservedfile=./peers.rsv --reservedonly ``` Here, the `peers.rsv` file contains the whitelist details. --- # 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.ont.io/support/faq/nodes.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.