ssh免交互

免交互expect

[root@m01 ~]# yum provides mkpasswd
expect-5.45-14.el7_1.x86_64
mkpasswd -l 10 -d 3 -c 3 -C 3 -s 1	 #指定密码长度，数字个数，大小写字母数，特殊符号数

1.安装expect
[root@m01 ~]# yum install -y expect
[root@web01 ~]# rpm -ql expect
/usr/bin/autoexpect
/usr/bin/dislocate
/usr/bin/expect		#可以TAB 和 使用相对路径执行

2.编写expect脚本,expect和shell，awk，sed一样，都是一门语言有自己的脚步格式
vim ep.sh

#指定写入的语言是哪种
vim dz.sh
##!/bin/bash/python3
#!/usr/bin/expect
#指定要连接的主机的IP
set ip 10.0.0.8
#指定密码
set pass 1 
#超时时间
set timeout 30

spawn ssh root@$ip

expect {
        "(yes/no)" {send "yes
"; exp_continue}
        "password:" {send "$pass
"}
}
expect "root@*"  {send "df -h
"}
expect "root@*"  {send "exit
"}
expect eof

[root@web01 ~]# expect dz.sh 	#执行方式
spawn ssh root@10.0.0.8
root@10.0.0.8's password: 
Last login: Tue May 12 14:11:29 2020 from 10.0.0.1
[root@web02 ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        476M     0  476M   0% /dev
tmpfs           487M     0  487M   0% /dev/shm
tmpfs           487M  7.7M  479M   2% /run
tmpfs           487M     0  487M   0% /sys/fs/cgroup
/dev/sda3        19G  1.6G   17G   9% /
/dev/sda1       497M  124M  374M  25% /boot
tmpfs            98M     0   98M   0% /run/user/0
[root@web02 ~]# exit
logout
Connection to 10.0.0.8 closed.

免交互sshpass

1.安装sshpass

[root@m01 ~]# yum install -y sshpass
2.使用sshpass命令

[root@m01 ~]# sshpass -p 123456 ssh root@10.0.0.51

[option]
-p：指定密码
-f：从文件中取密码
-e：从环境变量中取密码
-P：设置密码提示

推送公钥

vim /root/mjh.sh
#!/bin/bash
pass='1'
        ip='172.16.1.'
      rpm -q sshpass >/dev/null
[ echo $? -ne 0 ];yum install -y sshpass

[ ! -d /root/.ssh/id_rsa.pub ];
        ssh-keygen -t rsa -P "" -f /root/.ssh/id_rsa

      rm -rf /root/.ssh/known_hosts       
        for i in  5 6 7 8 9 31 41 51 52 53 54 61 200;
        do
        sshpass -p $pass ssh-copy-id -i /root/.ssh/id_rsa.pub -o stricthostkeychecking=no root@${ip}${i}
        done
	    chmod 600 /root/mjh.sh