作者：馬帥琦
歸檔：day38
時(shí)間：2019/4/23

1.ssh-keygen非交互式創(chuàng)建秘鑰對：
具體命令：ssh-keygen -f ~/.ssh/id_rsa -P '' -q
參數(shù)講解：

•    ssh-keygen：密鑰對創(chuàng)建工具
  [-P old_passphrase]  密碼
      [-f output_keyfile]  輸出的秘鑰文件
      [-q]       不輸出信息      
  [-t dsa ]  指定秘鑰類型。
  

2.ssh-copy-id不需要提示yes/no分發(fā)秘鑰
具體命令：ssh-copy-id -f -i ~/.ssh/id_rsa.pub -o StrictHostKeyChecking=no 172.16.1.8

參數(shù)講解：
    ssh-copy-id  -f   -i ~/.ssh/id_rsa.pub -o StrictHostKeyChecking=no root172.16.1.8
ssh-copy-id [-f] [-i [identity_file]] [-p port] [[-o <ssh -o options>] ...] [user@]hostname
說明：
-f: force mode 強(qiáng)制
[-i [identity_file]] 指定秘鑰文件
[[-o <ssh -o options>] ...] 指定ssh參數(shù)選項(xiàng)。

3.sshpass工具：指定密碼非人工交互分發(fā)秘鑰
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7

[root@web02 ~]# sshpass -help
Usage: sshpass [-f|-d|-p|-e] [-hV] command parameters
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7
sshpass [-f|-d|-p|-e] [-hV] command parameters

參數(shù)講解：
-p password   Provide password as argument (security unwise)    #指定用戶密碼操作

4.一鍵配置實(shí)踐

把web02作為分發(fā)服務(wù)器：
web02（8）-->m01（61）
web02（8）-->web01（7）

ssh-keygen -f ~/.ssh/id_rsa  -P '' -q
ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7

#!/bin/bash
#yum install sshpass -y
ssh-keygen -f ~/.ssh/id_rsa  -P '' -q
for ip in 7 61
do
  sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.$ip
done
#test
ssh 172.16.1.7 "ifconfig eth0"
ssh 172.16.1.61 "ifconfig eth0"