SSH批量管理

[root@linux-node1 ~]# cat /etc/redhat-release 
CentOS Linux release 7.0.1406 (Core) 

1.ssh-keygen非交互式创建秘钥对：
具体命令：ssh-keygen -f ~/.ssh/id_rsa  -P '' -q

安装yum源
wget -P /etc/yum.repo.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum -y install epel-release
yum clean all
yum makecache
yum -y install sshpass

2.ssh-copy-id不需要提示yes/no分发秘钥
具体命令：ssh-copy-id  -i ~/.ssh/id_rsa.pub -o StrictHostKeyChecking=no 192.168.230.131

3.sshpass工具：指定密码非人工交互分发秘钥
sshpass -Tcs6688.cn ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 192.168.230.131

4.测试
[root@linux-node1 ~]# ssh 192.168.230.131 "ifconfig eth0"
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.230.131  netmask 255.255.255.0  broadcast 192.168.230.255
        inet6 fe80::20c:29ff:fe06:e26f  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:06:e2:6f  txqueuelen 1000  (Ethernet)
        RX packets 52509  bytes 3349832 (3.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1331  bytes 189636 (185.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

5.如果有多台可以用脚本去批量添加分发

#!/bin/bash
#yum install sshpass -y
ssh-keygen -f ~/.ssh/id_rsa  -P '' -q
for ip in 131 132
do
  sshpass -pTcs6688.cn ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 192.168.230.$ip
done