Generating public/private rsa key pair. Enter file in which to save the key (/home/hadoop/.ssh/id_rsa): Created directory '/home/hadoop/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/hadoop/.ssh/id_rsa Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub The key fingerprint is: SHA256:slyEQ1rFv6KPsItZAJOvqhenUlKdh8H0ekMEqdvSK1o hadoop@node1 The key's randomart image is: +---[RSA 3072]----+ | ooo+o. | | . +* .. | |+ o.+= .. | | +o +o.o . | | .o+..+ S . | |..=.+o =. . | |.oE=o.o. . | |o.++.o.. | |=+o.o.... | +----[SHA256]-----+ [hadoop@node1 ~]$