配置節點間的SSH信任關系

(1)在節點1上

oracle@node1:~ > pwd

/home/oracle

oracle@node1:~ > mkdir .ssh

oracle@node1:~ > chmod 700 .ssh #這一步很重要，而且必須是700權限，否則失敗

oracle@node1:~ > ssh-keygen –t rsa

oracle@node1:~ > ssh-keygen –t dsa

oracle@node1:~ > cd .ssh ; ls

id_dsa id_dsa.pub id_rsa id_rsa.pub

(2)在節點2上

oracle@node2:~ > pwd

/home/oracle

oracle@node2:~ > mkdir .ssh

oracle@node2:~ > chmod 700 .ssh #這一步很重要，而且必須是700權限，否則失敗

oracle@node2:~ > ssh-keygen –t rsa

oracle@node2:~ > ssh-keygen –t dsa

oracle@node2:~ > cd .ssh ; ls

id_dsa id_dsa.pub id_rsa id_rsa.pub

(3)建立信任關系

oracle@node1:~/.ssh > cat id_rsa.pub >> authorized_keys

oracle@node1:~/.ssh > cat id_dsa.pub >> authorized_keys

oracle@node1:~/.ssh > ssh node2 cat /home/oracle/.ssh/id_rsa.pub >> authorized_keys

oracle@node1:~/.ssh > ssh node2 cat /home/oracle/.ssh/id_dsa.pub >> authorized_keys

oracle@node1:~/.ssh > scp authorized_keys node2:/home/oracle/.ssh/

(4)測試信任關系

oracle@node1:~ > ssh node2 date

oracle@node2:~ > ssh node1 date

均不用輸入密碼，則信任關系建立完畢！

總結

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