StrictModes is a security guard that will refuse a login try In case the authentication documents are readable by Absolutely everyone. Two much more configurations That ought to not have to be modified (presented you've got not modified this file prior to) are PubkeyAuthentication and ChallengeResponseAuthentication. These are set by https://vpnandsoftetheraccount18393.livebloggs.com/36100888/the-2-minute-rule-for-servicessh