> On Mar 21, 2018, at 4:47 PM, Ronald F. Guilmette <r...@tristatelogic.com> > wrote: > > But your question certainly raises an interesting possibility, and an > interesting question... one that I myself am not at all equiped or > qualified to answer (because I am almost totally ignorant about even > the bare mechanics of the SSH protocol): How could one tickle an open > SSH port and obtain from it not just its greeting banner (which may be, > and often is, rather generic and non-specific) but also so as to get > the host's host-specific public key?
Does the ssh-keyscan tool do what you want? # ssh-keyscan github.com # github.com:22 SSH-2.0-libssh_0.7.0 github.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ== Unless you've copied the host ssh keys manually, this will be unique to the system. _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
