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57 lines
1.8 KiB
Bash
57 lines
1.8 KiB
Bash
#!/bin/bash
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#
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#**********************************************************************************************
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#Author: Raymond
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#QQ: 88563128
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#Date: 2021-12-20
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#FileName: ssh_key.sh
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#URL: raymond.blog.csdn.net
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#Description: ssh_key for CentOS 7/8 & Ubuntu 18.04/24.04 & Rocky 8
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#Copyright (C): 2021 All rights reserved
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#*********************************************************************************************
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#基于key验证多主机ssh互相访问
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COLOR="echo -e \\033[01;31m"
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END='\033[0m'
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PASS=123456
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#设置网段最后的地址，4-255之间，越小扫描越快
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END=254
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IP=`ip a s eth0 | awk -F'[ /]+' 'NR==3{print $3}'`
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NET=${IP%.*}.
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os(){
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OS_ID=`sed -rn '/^NAME=/s@.*="([[:alpha:]]+).*"$@\1@p' /etc/os-release`
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}
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ssh_key_push(){
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rm -f /root/.ssh/id_rsa
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[ -e ./SCANIP.log ] && rm -f SCANIP.log
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for((i=3;i<="$END";i++));do
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ping -c 1 -w 1 ${NET}${i} &> /dev/null && echo "${NET}${i}" >> SCANIP.log &
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done
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wait
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ssh-keygen -f /root/.ssh/id_rsa -P '' &> /dev/null
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if [ ${OS_ID} == "CentOS" -o ${OS_ID} == "Rocky" ] &> /dev/null;then
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rpm -q sshpass &> /dev/null || { ${COLOR}"安装sshpass软件包"${END};yum -y install sshpass &> /dev/null; }
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else
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dpkg -S sshpass &> /dev/null || { ${COLOR}"安装sshpass软件包"${END};apt -y install sshpass &> /dev/null; }
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fi
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sshpass -p ${PASS} ssh-copy-id -o StrictHostKeyChecking=no ${IP}
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AliveIP=(`cat SCANIP.log`)
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for n in ${AliveIP[*]};do
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sshpass -p $PASS scp -o StrictHostKeyChecking=no -r /root/.ssh root@${n}:
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done
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#把.ssh/known_hosts拷贝到所有主机，使它们第一次互相访问时不需要输入回车
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for n in ${AliveIP[*]};do
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scp /root/.ssh/known_hosts ${n}:.ssh/
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done
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}
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main(){
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os
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ssh_key_push
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}
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main |