添加互信

安装 expect

sudo apt-get install tcl tk expect

创建脚本和主机列表文件，所有服务器密码需一样，根据实际环境，需要更改脚本里的密码

cat << EOF > ~/auto_ssh.exp

! /usr/bin/expect

执行ssh-keygen命令,如果需要就解注释

spawn ssh-keygen
expect “id_rsa”
send “\r”
expect “phrase”
send “\r”
expect “again”
send “\r”
interact

set f [open auto_ssh_host_ip r]
while { [gets $f ip]>=0} {
spawn ssh-copy-id $ip
expect {
“yes/no” {send “yes\r”;exp_continue} “password:” {send “123123\r”;exp_continue}
}
}
close $f
EOF

创建主机列表文件

cat << EOF > ~/auto_ssh_host_ip
server-31
server-32
server-33
EOF

执行脚本

 expect ~/auto_ssh.exp