Linux自動批量建立SSH互信指令碼

但是在實際工作中，往往機器很多，如果一台一台的去建立互信，則也需要耗費巨大的人力。

在網上看到乙個自動化批量建立互信的指令碼，在此分享給大家。

在主機上建立sh檔案，名稱隨意，然後在檔案中輸入以下內容：

#!/bin/sh

dest_user=$1
password=$2
hosts_file=$3
if [ $# -ne 3 ]; then
echo
"usage:
"echo
"$0 remoteuser remotepassword hostsfile
"exit 1fi
ssh_dir=~/.ssh
script_prefix=./tmp
echo *************************==# 
1. prepare  directory .ssh
mkdir
$ssh_dir
chmod
700$ssh_dir
# 2. generat ssh
keytmp_script=$script_prefix.sh
echo
"#!/usr/bin/expect
">$tmp_script
echo
"spawn ssh-keygen -b 1024 -t rsa
">>$tmp_script
echo
"expect *key*
">>$tmp_script
echo
"send \r
">>$tmp_script
if [ -f $ssh_dir/id_rsa ]; then
echo
"expect *verwrite*
">>$tmp_script
echo
"send y\r
">>$tmp_script
fiecho
"expect *passphrase*
">>$tmp_script
echo
"send \r
">>$tmp_script
echo
"expect *again:
">>$tmp_script
echo
"send \r
">>$tmp_script
echo
"interact
">>$tmp_script
chmod +x $tmp_script
/usr/bin/expect $tmp_script
rm$tmp_script
# 3. generat file
authorized_keys
cat $ssh_dir/id_rsa.pub>>$ssh_dir/authorized_keys
# 4. chmod
600for
file
authorized_keys
chmod
600 $ssh_dir/authorized_keys
echo *************************==# 
5. copy all files to other hosts
for ip in $(cat
$hosts_file)  
doif [ "
x$ip
" != "
x" ]; then
echo -------------------------tmp_script=$.$ip.sh
# check known_hosts
val=`ssh-keygen -f $ip`
if [ "
x$val
" == "
x" ]; then
echo
"$ip not in $ssh_dir/known_hosts, need to add
"val=`ssh-keyscan $ip 2>/dev/null
`            
if [ "
x$val
" == "
x" ]; then
echo
"ssh-keyscan $ip failed!
"else
echo $val>>$ssh_dir/known_hosts
fifi
echo
"copy $ssh_dir to $ip
"echo
"#!/usr/bin/expect
">$tmp_script
echo
"spawn scp -r  $ssh_dir $dest_user@$ip:~/
">>$tmp_script
echo
"expect *assword*
">>$tmp_script
echo
"send $password\r
">>$tmp_script
echo
"interact
">>$tmp_script
chmod +x $tmp_script
#echo
"/usr/bin/expect $tmp_script
" >$tmp_script.do
#sh $tmp_script.do&
/usr/bin/expect $tmp_script
rm$tmp_script
echo
"copy done."fi
done
echo
done.

示例如下：

192.168.1.2

192.168.1.3
192.168.1.4
192.168.1.5

例如：

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