Unfortunately, ntp autokey is broken and insecure, it can't be used to provide any additional security.
http://zero-entropy.de/autokey_analysis.pdf The only solution for the moment is for system administrators to set up their own symmetric keys with their own ntp server. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to ntp in Ubuntu. https://bugs.launchpad.net/bugs/1039420 Title: NTP security vulnerability because not using authentication by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1039420/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
