After the above steps, the management station first implements an identity authentication to {HEAD ~ the SSH server} of {TAIL ~ the managed device} according to the related information of the SSH host key obtained 
of
After the above steps , the management station first implements an identity authentication to { HEAD ~ the SSH server } of { TAIL ~ the managed device } according to the related information of the SSH host key obtained
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH