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  • 配上ssh等效连接

    配置等效连接
    host1 :192.168.216.150
    host2 :192.168.216.151
    host3 :192.168.216.152

    A.配置 host1 与 host2 的等效连接
    步骤1.host1:192.168.216.150
    [mysql@host1]$ mkdir ~/.ssh
    [mysql@host1]$ chmod 700 ~/.ssh
    [mysql@host1]$ ssh-keygen -t rsa
    [mysql@host1]$ ssh-keygen -t dsa


    步骤2.host2:192.168.216.151
    [mysql@host2]$ mkdir ~/.ssh
    [mysql@host2]$ chmod 700 ~/.ssh
    [mysql@host2]$ ssh-keygen -t rsa
    [mysql@host2]$ ssh-keygen -t dsa


    步骤3.host1:192.168.216.150
    [mysql@host1]$cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$ssh 192.168.216.151 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$ssh 192.168.216.151 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$scp ~/.ssh/authorized_keys 192.168.216.151:~/.ssh/authorized_keys


    步骤4:
    [mysql@host1]$ ssh 192.168.216.151 date
    [mysql@host2]$ ssh 192.168.216.150 date

    B.配置host1与host3的等效连接

    1.host3
    [mysql@host3]$ mkdir ~/.ssh
    [mysql@host3]$ chmod 700 ~/.ssh
    [mysql@host3]$ ssh-keygen -t rsa
    [mysql@host3]$ ssh-keygen -t dsa

    2.host1
    [mysql@host1]$ssh 192.168.216.152 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$ssh 192.168.216.152 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$scp ~/.ssh/authorized_keys 192.168.216.152:~/.ssh/authorized_keys


    B.配置host2与host3的等效连接
    host2
    [mysql@host1]$ssh 192.168.216.152 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$ssh 192.168.216.152 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
    [mysql@host1]$scp ~/.ssh/authorized_keys 192.168.216.152:~/.ssh/authorized_keys


    偶尔有些机器上老是配置不成功,非要在root账号下配置。
    解决办法(每台机器上root账号下执行):
    在ssh用户的
    cd /home/mysql/.ssh
    chmod 710 authorized_keys

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  • 原文地址:https://www.cnblogs.com/hxlasky/p/12204180.html
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