我需要创建一个自动向OpenSSH ssh客户端输入密码的脚本。
假设我需要使用密码a1234b SSH到myname@somehost。
我已经试过了……
#~/bin/myssh.sh
ssh myname@somehost
a1234b
.．.但这并不奏效。
如何将此功能放入脚本中?
当前回答
# create a file that echo's out your password .. you may need to get crazy with escape chars or for extra credit put ASCII in your password...
echo "echo YerPasswordhere" > /tmp/1
chmod 777 /tmp/1
# sets some vars for ssh to play nice with something to do with GUI but here we are using it to pass creds.
export SSH_ASKPASS="/tmp/1"
export DISPLAY=YOURDOINGITWRONG
setsid ssh root@owned.com -p 22
参考:https://www.linkedin.com/pulse/youre-doing-wrong-ssh-plain-text-credentials-robert-mccurdy?trk=mp-reader-card
其他回答
我设法让它工作了:
SSH_ASKPASS="echo \"my-pass-here\""
ssh -tt remotehost -l myusername
安全性更高的Sshpass
我在寻找ssh进入瘫痪服务器的方法时偶然发现了这个线程——处理ssh连接尝试花了一分钟多，在我输入密码之前超时了。在本例中，我希望能够在提示可用时立即提供我的密码。
(如果还不清楚的话:服务器处于这种状态，再设置公钥登录就太迟了。)
Sshpass来救援。但是，有比sshpass -p更好的方法。
我的实现直接跳到交互式密码提示(不会浪费时间查看是否可以进行公钥交换)，并且从不以纯文本的形式显示密码。
#!/bin/sh
# preempt-ssh.sh
# usage: same arguments that you'd pass to ssh normally
echo "You're going to run (with our additions) ssh $@"
# Read password interactively and save it to the environment
read -s -p "Password to use: " SSHPASS
export SSHPASS
# have sshpass load the password from the environment, and skip public key auth
# all other args come directly from the input
sshpass -e ssh -o PreferredAuthentications=keyboard-interactive -o PubkeyAuthentication=no "$@"
# clear the exported variable containing the password
unset SSHPASS
在寻找这个问题的答案几个月后，我终于找到了一个更好的解决方案:写一个简单的脚本。
#!/usr/bin/expect
set timeout 20
set cmd [lrange $argv 1 end]
set password [lindex $argv 0]
eval spawn $cmd
expect "password:"
send "$password\r";
interact
把它放在/usr/bin/exp，所以你可以使用:
Exp <password> SSH <任何> Exp <password> SCP <anysrc> <anydst>
完成了!
这应该在大多数情况下都有帮助(你需要先安装sshpass !):
#!/usr/bin/bash
read -p 'Enter Your Username: ' UserName;
read -p 'Enter Your Password: ' Password;
read -p 'Enter Your Domain Name: ' Domain;
sshpass -p "$Password" ssh -o StrictHostKeyChecking=no $UserName@$Domain
# create a file that echo's out your password .. you may need to get crazy with escape chars or for extra credit put ASCII in your password...
echo "echo YerPasswordhere" > /tmp/1
chmod 777 /tmp/1
# sets some vars for ssh to play nice with something to do with GUI but here we are using it to pass creds.
export SSH_ASKPASS="/tmp/1"
export DISPLAY=YOURDOINGITWRONG
setsid ssh root@owned.com -p 22
参考:https://www.linkedin.com/pulse/youre-doing-wrong-ssh-plain-text-credentials-robert-mccurdy?trk=mp-reader-card
