When the Jami android app uses a "DHT proxy" host-name different than the default one it does not connect.
Android mobile setup:
- Ring version: 20190706-01
- Device model:
- Android version: 7.0
- What build you are using: Play Store
Steps to reproduce
Can you reproduce the bug: yes at will.
The Jami app default/preset proxy server connection string is "dhtproxy.jami.net:[80-100]", with [80-100] being a range of possible service ports .
1. The current IP address of of dhtproxy.jami.net resolved with nslookup is 18.104.22.168 .
2. Enabling the use of "dhtproxy.jami.net:[80-100]" the jami account goes online correctly.
3. Making a traceroute --resolve-hostnames dhtproxy.jami.net, on a Linux host, I get at the end of the trace list a name alias of the same ip (22.214.171.124) "ns3102173.ip-54-36-178.eu". I can make the same using an app ("Ping & Net") directly on the mobile and I obtain the same results.
4. Using nslookup I verify that the two host names dhtproxy.jami.net and ns3102173.ip-54-36-178.eu resolve to the same ip : 126.96.36.199 . Also on the Android mobile I obtain the same results using the app "Ping & Net".
5. If on the android mobile I point Firefox to the url http://dhtproxy.jami.net or to http://ns3102173.ip-54-36-178.eu I get the same dhtproxy report JSON text: this means that the two host names can be used to open at least the same port 80 `web page`.
6. In the Jami application I substituted the dafault/preset host namedhtproxy.jami.net with it's alias ns3102173.ip-54-36-178.eu, I obtain the connection string "ns3102173.ip-54-36-178.eu:[80-100]"; doing so the Jami account no more connects. It seems quite that "the application" is not resolving the IP address for the new host name or it cuts out any other server name to use/resolve different than dhtproxy.jami.net.
7. Using directly the ip address in the connection string makes Jami to connect : "188.8.131.52:[80-100]" .
Actual result: the Jami Android OS app does not connect to a "DHT proxy" string that has a literal hostname different than "dhtproxy.jami.net". It does connect if the "DHT proxy" is identified using its IP address .
Expected result: the the Jami Android OS app should connect with any "DHT proxy" using in the connection string its DNS name to be resolved.
I encountered this bug verifying the connection to an OpenDHT (dhtnode) instance I setup; using this setup the Jami app connects to the "DHT proxy" from the Internet only when using the the IP host number in the connection string.
OpenDHT instance, compiled from source baseline version 1.10.0 (https://github.com/savoirfairelinux/opendht.git), running on Linux OS.