diff --git a/src/App/ZoneInterface.purs b/src/App/ZoneInterface.purs
index 24e10d7..0d2afbe 100644
--- a/src/App/ZoneInterface.purs
+++ b/src/App/ZoneInterface.purs
@@ -129,7 +129,10 @@ data Action
   -- Update an already active entry.
   | UpdateLocalForm RRId Update_Local_Form
 
-  | SyncRR RRId
+  | SyncSRR   RRId
+  | SyncMXRR  RRId
+  | SyncSRVRR RRId
+
   | RemoveRR RRId
 
   | TellSomethingWentWrong RRId String
@@ -423,13 +426,44 @@ handleAction = case _ of
         state <- H.get
         H.modify_ _ { _srvrr = (update_port rr_id val state._srvrr) }
 
-  -- TODO: network operations
-  SyncRR rr_id -> do
-    H.raise $ Log $ SimpleLog ("TODO: SyncRR: " <> show rr_id)
-    -- message <- H.liftEffect
-    --   $ DNSManager.serialize
-    --   $ DNSManager.MkDeleteRR { domain: _current_domain, rrid: rr_id }
-    -- H.raise $ MessageToSend message
+  SyncSRR local_rr_id -> do
+    state <- H.get
+    let maybe_local_rr = first (\rr -> rr.id == local_rr_id) state._srr
+    case maybe_local_rr of
+      Nothing -> H.raise $ Log $ SimpleLog $ "Cannot find simple RR id: " <> show local_rr_id
+      Just local_rr -> do
+        let rr = fromLocalSimpleRRRepresentationToResourceRecord local_rr
+        H.raise $ Log $ SimpleLog $ "Sync a simple RR: " <> show local_rr_id
+        message <- H.liftEffect
+          $ DNSManager.serialize
+          $ DNSManager.MkUpdateRR { domain: state._current_domain, rr: rr }
+        H.raise $ MessageToSend message
+
+  SyncMXRR local_rr_id -> do
+    state <- H.get
+    let maybe_local_rr = first (\rr -> rr.id == local_rr_id) state._mxrr
+    case maybe_local_rr of
+      Nothing -> H.raise $ Log $ SimpleLog $ "Cannot find MX RR id: " <> show local_rr_id
+      Just local_rr -> do
+        let rr = fromLocalMXRRRepresentationToResourceRecord local_rr
+        H.raise $ Log $ SimpleLog $ "Sync a MX RR: " <> show local_rr_id
+        message <- H.liftEffect
+          $ DNSManager.serialize
+          $ DNSManager.MkUpdateRR { domain: state._current_domain, rr: rr }
+        H.raise $ MessageToSend message
+
+  SyncSRVRR local_rr_id -> do
+    state <- H.get
+    let maybe_local_rr = first (\rr -> rr.id == local_rr_id) state._srvrr
+    case maybe_local_rr of
+      Nothing -> H.raise $ Log $ SimpleLog $ "Cannot find SRV RR id: " <> show local_rr_id
+      Just local_rr -> do
+        let rr = fromLocalSRVRRepresentationToResourceRecord local_rr
+        H.raise $ Log $ SimpleLog $ "Sync a SRV RR: " <> show local_rr_id
+        message <- H.liftEffect
+          $ DNSManager.serialize
+          $ DNSManager.MkUpdateRR { domain: state._current_domain, rr: rr }
+        H.raise $ MessageToSend message
 
   RemoveRR rr_id -> do
     { _current_domain } <- H.get
@@ -613,7 +647,7 @@ render_records records
       , HH.td_ [ Bulma.input_domain ((UpdateLocalForm rr.id) <<< Update_Local_Form_SRR <<< Update_SRR_Domain) rr.domain rr.valid ]
       , HH.td_ [ Bulma.input_ttl    ((UpdateLocalForm rr.id) <<< Update_Local_Form_SRR <<< Update_SRR_TTL  )  rr.ttl    rr.valid ]
       , HH.td_ [ Bulma.input_value  ((UpdateLocalForm rr.id) <<< Update_Local_Form_SRR <<< Update_SRR_Value)  rr.value  rr.valid ]
-      , HH.td_ [ Bulma.btn_change  (SyncRR rr.id) (TellSomethingWentWrong rr.id "cannot update") rr.modified rr.valid ]
+      , HH.td_ [ Bulma.btn_change  (SyncSRR rr.id) (TellSomethingWentWrong rr.id "cannot update") rr.modified rr.valid ]
       , HH.td_ [ Bulma.btn_delete (\_ -> DeleteRRModal rr.id) ]
       ]
 
@@ -638,7 +672,7 @@ render_mx_records records
       , HH.td_ [ Bulma.input_ttl      ((UpdateLocalForm rr.id) <<< Update_Local_Form_MXRR <<< Update_MX_TTL)      rr.ttl      rr.valid ]
       , HH.td_ [ Bulma.input_priority ((UpdateLocalForm rr.id) <<< Update_Local_Form_MXRR <<< Update_MX_Priority) rr.priority rr.valid ]
       , HH.td_ [ Bulma.input_value    ((UpdateLocalForm rr.id) <<< Update_Local_Form_MXRR <<< Update_MX_Value)    rr.value    rr.valid ]
-      , HH.td_ [ Bulma.btn_change     (SyncRR rr.id) (TellSomethingWentWrong rr.id "cannot update") rr.modified rr.valid ]
+      , HH.td_ [ Bulma.btn_change     (SyncMXRR rr.id) (TellSomethingWentWrong rr.id "cannot update") rr.modified rr.valid ]
       , HH.td_ [ Bulma.btn_delete (\_ -> DeleteRRModal rr.id) ]
       ]
 
@@ -665,7 +699,7 @@ render_srv_records records
       , HH.td_ [ Bulma.input_weight   ((UpdateLocalForm rr.id) <<< Update_Local_Form_SRVRR <<< Update_SRV_Weight  ) rr.weight   rr.valid ]
       , HH.td_ [ Bulma.input_port     ((UpdateLocalForm rr.id) <<< Update_Local_Form_SRVRR <<< Update_SRV_Port    ) rr.port     rr.valid ]
       , HH.td_ [ Bulma.input_value    ((UpdateLocalForm rr.id) <<< Update_Local_Form_SRVRR <<< Update_SRV_Value   ) rr.value    rr.valid ]
-      , HH.td_ [ Bulma.btn_change     (SyncRR rr.id) (TellSomethingWentWrong rr.id "cannot update") rr.modified rr.valid ]
+      , HH.td_ [ Bulma.btn_change     (SyncSRVRR rr.id) (TellSomethingWentWrong rr.id "cannot update") rr.modified rr.valid ]
       , HH.td_ [ Bulma.btn_delete (\_ -> DeleteRRModal rr.id) ]
       ]
 
@@ -955,6 +989,9 @@ fromLocalSRVRRepresentationToResourceRecord form
     , minttl:       Nothing
     }
 
+first :: forall a. (a -> Boolean) -> Array a -> Maybe a
+first condition = A.head <<< (A.filter condition)
+
 getNewID :: State -> Int
 getNewID state = (_ + 1)
   $ Foldable.foldl max 0 [ maxIDrr