4. Annex: The Ouinet client front-end

The Ouinet client (as run by e.g. the CENO Browser) offers a front-end page with some information and actions which may be useful for debugging the client. Some of those may not be available from the CENO Extension.

The front-end is accessible using any plain Web browser running on the same device (you can use CENO too). Its default address is http://127.0.0.1:8078/. If you open it, you will see something like the figure below.

Figure: The client front-end

The items shown in the page include:

• A link to enable the client as a certificate authority (CA) at your browser, since the client needs to intercept HTTPS traffic.

  You only need this to use a plain browser for testing the Ouinet client, in which case you will also have to configure its HTTP/HTTPS proxies to 127.0.0.1:8077, and manually enable the CENO Extension for injection to work. We very strongly recommend using a separate, specific browser profile for this purpose.

  Please note that none of this needs to be done for the CENO Browser, since it is already configured like that.

• Buttons to enable or disable the different mechanisms used by the client to access content. They are equivalent to the check boxes in the CENO Settings page.

• Selectors to choose different log levels, like the default INFO (informational messages, warnings and errors) or DEBUG (verbose output useful for reporting errors).

• The public key used to verify signatures from injectors, and the configured way to reach them. The default bep5 method looks up Internet addresses in a BitTorrent injector swarm, as explained here.

• Information on your local cache like the maximum accepted age of cached content, the approximate size of the cache, and a button to purge it completely.