批量分發公鑰

01. 免互動建立秘鑰對

ssh-keygen -t rsa -f /root/.ssh/id_rsa -P ""      

 02. 免互動分發公鑰,可以指定使用者分發，預設是root

centos 7

yum install sshpass -y
sshpass -p123456 ssh-copy-id -i /root/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no"  [email protected]      

centos 6

sshpass -p123456 ssh-copy-id -i /root/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no [email protected]"      

3.免互動批量分發公鑰腳本

#!/bin/bash

#chuangjian,key pair
rm -f /root/.ssh/id_dsa*
ssh-keygen -t dsa -f /root/.ssh/id_dsa -P "" -q
#install sshpass
yum install sshpass -y &>/dev/null

#  fenfa key file
for ip in `cat /server/scripts/game_ip.txt`
do
  echo "===== fenfa key to host $ip ====="
  sshpass -proot密碼  ssh-copy-id  -i  /root/.ssh/id_dsa.pub "-o StrictHostkeyChecking=no root@$ip"
  echo "============= fenfa end =================="
  echo ""
done      

4. 批量管理腳本

#!/bin/bash

CMD="$1"

if [ $# -ge 1 ];then

   for ip in ·cat game_ip.txt·

   do

       echo  "====== host $ip info ========"

       ssh $ip $CMD

       echo  "======================================"

       echo  ""

   done

else

  exit

fi