[REAME] topo about trustdb

README.rst

@@ -103,6 +103,17 @@ Troubleshoutings
 
 To troubleshot, you ``-vv`` option to activate debug.
 
+Sudo asks for a password
+~~~~~~~~~~~~~~~~~~~~~~~~
+
 ""“sudo: sorry, a password is required to run sudo”""
 
 Check sudoers file on server side.
+
+Cpasswords is not trusting many people
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Please make sure your trustdb is up to date with ``gpg --update-trustdb``.
+
+You need to have physically met and sign at least some people from the server
+keyring.