How does the TOR propagation of nodes work?

1. How does Tor nodes work?
2. How are Tor nodes chosen?
3. How does Tor relays work?
4. How often do Tor nodes change?

How does Tor nodes work?

Using Tor, your computer never communicates with the server directly. Tor creates a twisted path through 3 Tor nodes, and sends the data via that circuit. The core principle of Tor is onion routing which is a technique for anonymous & secure communication over a public network.

How are Tor nodes chosen?

Unlike the other nodes, the Tor client will randomly select an entry node and stick with it for two to three months to protect you from certain attacks.

How does Tor relays work?

Tor relays are also referred to as "routers" or "nodes." They receive traffic on the Tor network and pass it along. Check out the Tor website for a more detailed explanation of how Tor works. There are three kinds of relays that you can run in order to help the Tor network: middle relays, exit relays, and bridges.

How often do Tor nodes change?

The list of guard nodes is available in the public list of TOR nodes and are updated almost every minute.