???????????????????????ssh key??????????′???????A??111.111.111.111??????B??222.222.222.222??
????????????????????hostA@email.com??hostB@email.com??????????ssh?????浽???λ??????磺
????# ????A?????/c/user/.ssh/id_rsa
????ssh-keygen -t rsa –C “hostA@email.com”
????# ????B?????/c/user/.ssh/hostb/id_rsa
????ssh-keygen –t rsa –C “hostB@email.com”
????/c/user/.ssh/hostb/id_rsa  # ?????????洢λ?????????
?????????/c/user/.ssh/???￡????????“config”????????????????????
Host 111.111.111.111
HostName 111.111.111.111
PreferredAuthentications publickey
IdentityFile ~/.ssh/id_rsa
Host 222.222.222.222
HostName 222.222.222.222
PreferredAuthentications publickey
IdentityFile ~/.ssh/hostb/id_rsa
????????????￡?
????$ ssh -T 111.111.111.111
????$ ssh -T 222.222.222.222