{HEAD ~ A method} and a system for obtaining a Security Shell host key of a managed device, including: while detecting the managed device, {TAIL ~ the management station} obtaining the related information of the SSH host key in a UDP transport mode 
including
{ HEAD ~ A method } and a system for obtaining a Security Shell host key of a managed device , including : while detecting the managed device , { TAIL ~ the management station } obtaining the related information of the SSH host key in a UDP transport mode
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