Linux免密配置

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[root@oracle11g ~]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: ef:8f:09:3d:77:6b:bd:74:99:2b:ba:2e:5b:18:21:d8 root@oracle11g The key's randomart image is: +--[ RSA 2048]----+ |                 | |      o          | |     . E .       | |        . .      | |        S.       | |         oo     o| |        ..+.. .=.| |         +.= oo.+| |         .B=+.oo.| +-----------------+ [root@oracle11g ~]# [root@oracle11g ~]# [root@oracle11g ~]# [root@oracle11g ~]# cd .ssh/ [root@oracle11g .ssh]# ls authorized_keys  id_rsa  id_rsa.pub  known_hosts [root@oracle11g .ssh]# [root@oracle11g .ssh]# [root@oracle11g .ssh]# [root@oracle11g .ssh]# ssh-copy-id -i root@192.168.162.199 root@192.168.162.199's password: Now try logging into the machine, with "ssh 'root@192.168.162.199'", and check in:     .ssh/authorized_keys   to make sure we haven't added extra keys that you weren't expecting.   [root@oracle11g .ssh]# [root@oracle11g .ssh]# [root@oracle11g .ssh]# [root@oracle11g .ssh]# ssh 192.168.162.199 Last login: Fri Jun 17 18:29:42 2022 from oracle11g [root@node01 ~]#