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[homepage.git] / blog / archive / 2019 / 06 / 06.rss

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                 <link>http://people.skolelinux.org/pere/blog/</link>
 
        
+       <item>
+               <title>Jami/Ring, finally functioning peer to peer communication client</title>
+               <link>http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html</link>        
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html</guid>
+                <pubDate>Wed, 19 Jun 2019 08:50:00 +0200</pubDate>
+               <description>&lt;p&gt;Some years ago, in 2016, I
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/Experience_and_updated_recipe_for_using_the_Signal_app_without_a_mobile_phone.html&quot;&gt;wrote
+for the first time about&lt;/a&gt; the Ring peer to peer messaging system.
+It would provide messaging without any central server coordinating the
+system and without requiring all users to register a phone number or
+own a mobile phone.  Back then, I could not get it to work, and put it
+aside until it had seen more development.  A few days ago I decided to
+give it another try, and am happy to report that this time I am able
+to not only send and receive messages, but also place audio and video
+calls.  But only if UDP is not blocked into your network.&lt;/p&gt;
+
+&lt;p&gt;The Ring system changed name earlier this year to
+&lt;a href=&quot;https://en.wikipedia.org/wiki/Jami_(software)&quot;&gt;Jami&lt;/a&gt;.  I
+tried doing web search for &#39;ring&#39; when I discovered it for the first
+time, and can only applaud this change as it is impossible to find
+something called Ring among the noise of other uses of that word.  Now
+you can search for &#39;jami&#39; and this client and
+&lt;a href=&quot;https://jami.net/&quot;&gt;the Jami system&lt;/a&gt; is the first hit at
+least on duckduckgo.&lt;/p&gt;
+
+&lt;p&gt;Jami will by default encrypt messages as well as audio and video
+calls, and try to send them directly between the communicating parties
+if possible.  If this proves impossible (for example if both ends are
+behind NAT), it will use a central SIP TURN server maintained by the
+Jami project.  Jami can also be a normal SIP client.  If the SIP
+server is unencrypted, the audio and video calls will also be
+unencrypted.  This is as far as I know the only case where Jami will
+do anything without encryption.&lt;/p&gt;
+
+&lt;p&gt;Jami is available for several platforms: Linux, Windows, MacOSX,
+Android, iOS, and Android TV.  It is included in Debian already.  Jami
+also work for those using F-Droid without any Google connections,
+while Signal do not.
+&lt;a href=&quot;https://git.jami.net/savoirfairelinux/ring-project/wikis/technical/Protocol&quot;&gt;The
+protocol&lt;/a&gt; is described in the Ring project wiki.  The system uses a
+distributed hash table (DHT) system (similar to BitTorrent) running
+over UDP.  On one of the networks I use, I discovered Jami failed to
+work.  I tracked this down to the fact that incoming UDP packages
+going to ports 1-49999 were blocked, and the DHT would pick a random
+port and end up in the low range most of the time.  After talking to
+the developers, I solved this by enabling the dhtproxy in the
+settings, thus using TCP to talk to a central DHT proxy instead of
+
+peering directly with others.  I&#39;ve been told the developers are
+working on allowing DHT to use TCP to avoid this problem.  I also ran
+into a problem when trying to talk to the version of Ring included in
+Debian Stable (Stretch).  Apparently the protocol changed between
+beta2 and the current version, making these clients incompatible.
+Hopefully the protocol will not be made incompatible in the
+future.&lt;/p&gt;
+
+&lt;p&gt;It is worth noting that while looking at Jami and its features, I
+came across another communication platform I have not tested yet.  The
+&lt;a href=&quot;https://en.wikipedia.org/wiki/Tox_(protocol)&quot;&gt;Tox protocol&lt;/a&gt;
+and &lt;a href=&quot;https://tox.chat/&quot;&gt;family of Tox clients&lt;/a&gt;.  It might
+become the topic of a future blog post.&lt;/p&gt;
+
+&lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+&lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
+</description>
+       </item>
+       
        <item>
                <title>More sales number for my Free Culture paper editions (2019-edition)</title>
                <link>http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</link>