Use TCP for TLS connections

site-cookbooks/kosmos-ejabberd/recipes/coturn.rb

@@ -37,7 +37,7 @@ end
 
 firewall_rule 'ejabberd_stun_turn_tls' do
   port     node["ejabberd"]["stun_turn_port_tls"]
-  protocol :udp
+  protocol :tcp
   command  :allow
 end
 

site-cookbooks/kosmos-ejabberd/templates/ejabberd.yml.erb

@@ -242,7 +242,7 @@ modules:
         host: <%= @turn_domain %>
         port: <%= @stun_turn_port_tls %>
         type: stuns
-        transport: udp
+        transport: tcp
         restricted: false
       -
         host: <%= @turn_domain %>