[[!img tor.png link="no" class="svg" alt="A Tor connection goes through 3 relays with the last one establishing the actual connection to the final destination"]]
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You cannot access the Internet from Tails until you are connected to Tor. For example, *Tor Browser* displays the error message <span class="code">`Proxy server refusing connections</span>` until you are connected to Tor.
You cannot access the Internet from Tails until you are connected to Tor. For example, *Tor Browser* displays the error message `Proxy server refusing connections` until you are connected to Tor.
<p>Because Tor routes your Internet traffic through 3 relays before reaching its destination, the connection is slower than when you are not using Tor.</p>
Tails learns the current time by connecting to the captive portal detection service of [Fedora](https://getfedora.org/), which is used by most Linux distributions. This connection does not go through the Tor network and is an exception to our policy of only making Internet connections through the Tor network.
<p>You can learn more about our security assessment of this time synchronization in our [[design documentation about non-Tor traffic|contribute/design/Tor_enforcement#non-tor-traffic]].</p>
If Tails fails to synchronize the clock because you have to sign in to the network using a captive portal, an error screen is displayed that helps you do so.
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- [[SFor detailed instructions, see how to [[sign in to the network using a captive portal|unsafe_browser]]- Configure a local proxy.
<p>Tails uses the [[default <i>obfs4</i> bridges from <i>Tor Browser</i>|https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/blob/main/projects/tor-expert-bundle/pt_config.json?ref_type=heads]].</p>
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If public relays and default bridges don't work, Tails asks you to configure a **custom bridges**, if connecting using the default bridges fails.
<h1 id="hiding">Hiding to your local network that you are connecting to Tor</h1>
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When you choose this option, Tails will only connect to Tor after you configure a Tor bridges. Bridges are secret Tor relays that hide that you are connecting to Tor.
When you choose this option, Tails will only connect to Tor after you configure a Tor bridge. Bridges are secret Tor relays that hide that you are connecting to Tor.