Shulou(Shulou.com)06/03 Report--

The mysql user ssh mutual trust configuration between the three machines is switched to the following path, and the relevant operation cd / home/mysql/.ssh (1) is executed on all hosts: ssh-keygen-t rsa # needs to operate on each machine, enter all the way and generate a pair of public and private keys. (2) Node 1 executes ssh-copy-id-I id_rsa.pub mysql@devdb02ssh-copy-id-I id_rsa.pub mysql@devdb03 (3) Node 2 executes ssh-copy-id-I id_rsa.pub mysql@devdb01ssh-copy-id-I id_rsa.pub mysql@devdb03 (4) Node 3 performs ssh-copy-id-I id_rsa.pub mysql@devdb01ssh-copy-id-I id_rsa.pub mysql@devdb02# test (strongly recommended) ssh devdb01ssh devdb02ssh devdb03

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