Update TODO list

diff --git a/docs/TODO b/docs/TODO
index bd9e72d..f7f2a51 100644 (file)
--- a/docs/TODO
+++ b/docs/TODO
@@ -4,10 +4,16 @@
 
 - HTTP proxy authentication
 
-- Improve dealing with problems when update for particular service fails (static failure (Auth data) / temporary failure (DNS) )
-    -> static failure: e.g. disable service.
-    -> temporary failure: e.g. increase idle period for that service.
-
 - Add curl HTTP headers to disable proxy caching
 
 - On too many update errors: Configurable block period and error threshold counter
+
+Nice to have:
+- webcheck mode: Cache last known IP
+
+  We only determine the current IP every "webcheck_interval" to prevent server trashing.
+
+  If a service can't be updated right now (because the update interval forces an idle period),
+  it will only be updated after the next successful webcheck IP determination.
+  We could cache the last known IP and update the service as soon as
+  the service's update interval permits.