# Address Book #### The Basics In order to browse @I2P sites or services with @Kovri, you'll need an address book. An address book will allow you to translate @I2P websites/services that use the `.i2p` [top-level domain](https://en.wikipedia.org/wiki/Top_level_domain) into an address that @I2P network will understand. Without an address book, you would be stuck using a @base32-address every time you visit an @I2P website/service - and that's not fun! #### In-depth information Since [DNS](https://en.wikipedia.org/wiki/DNS) does not exist on the @I2P network, @Kovri also does **not** use DNS or any sort of @canonically-unique-host resolution. Instead, Kovri pairs a @locally-unique-host to a @base64-address @destination in a @subscription. Once your address book is filled with a @subscription, you can resolve your favorite `.i2p` domain site into a usable @I2P destination. #### Creating an Address Book By default, your installation will come with a default public @subscription called `hosts.txt` in your @data-directory. When @Kovri starts, it loads this subscription and fetches any other subscriptions you've specified. Once loaded, your address book will be appropriately filled. For details on how to manage subscriptions, see @subscription. #### Updating the Address Book Currently, there are several ways to update your address book: 1. Use a @jump-service to insert I2P addresses into your address book 2. Use a @jump-service to copy/paste an address into your private @subscription 3. Manually add or subtract from a private @subscription **Note: Kovri is in heavy development. In the future there *****will***** be easier ways to update the address book** #### Address Book / Naming specification For specification details and more, visit the [Address Book and Naming Specification](https://geti2p.net/en/docs/naming) --- # 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://wiki.havenprotocol.org/overview/address-book.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.