Made some search, and figured out that it's because of the gnome- keyring-manager. The same problem http://groups.google.com/group/linux.debian.bugs.dist/browse_thread/thread/150d601e274584e8/8982eb1a03d596ed
** Changed in: gnome-keyring-manager (Ubuntu) Sourcepackagename: openssh => gnome-keyring-manager -- ssh-add -D (or -d) does not delete the keys https://bugs.launchpad.net/bugs/228340 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- 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