批量修改远程linux服务器密码

　　#!/bin/bash,　　# BY kerryhu,　　# MAIL:king_819@163.com,　　# BLOG:http://kerry.blog.51cto.com,　　# Please manual operation yum of before Operation.....,　　一、建立信任关系,　　192.168.9.203 为管理机,　　192.168.9.201 192.168.9.202 为远程linux服务器,　　1、在管理机生成证书、,　　[root@manage ~]# ssh-keygen -t rsa,　　Generating public/private rsa key pair.,　　Enter file in which to save the key (/root/.ssh/id_rsa):,　　Enter passphrase (empty for no passphrase):,　　Enter same passphrase again:,　　Your identification has been saved in /root/.ssh/id_rsa. (私钥),　　Your public key has been saved in /root/.ssh/id_rsa.pub. (公钥),　　The key fingerprint is:,　　36:ec:fc:db:b0:7f:81:7e:d0:1d:36:5e:29:dd:5b:a0,　　2、将管理机上的公钥传送到各远程服务器,　　如远程服务器更改了默认的ssh端口号，就使用scp -P 17173，17173为端口号,　　[root@manage .ssh]# scp id_rsa.pub 192.168.9.201:/root/.ssh/authorized_keys,　　[root@manage .ssh]# scp id_rsa.pub 192.168.9.202:/root/.ssh/authorized_keys,　　管理机与远程主机信任关系建立完毕,　　二、通过shell脚本批量修改远程服务器密码,　　如果要调用mkpasswd就得安装expect，使用mkpasswd可以随机产生密码,　　usage: mkpasswd [args] [user],　　where arguments are:,　　-l # (length of password, default = 10),　　-d # (min # of digits, default = 2),　　-c # (min # of lowercase chars, default = 2),　　-C # (min # of uppercase chars, default = 2),　　-s # (min # of special chars, default = 1),　　-v (verbose, show passwd interaction),　　-p prog (program to set password, default = passwd),　　比如说你要指定一个长度为8，而且至少有三个大写字母的密码，那么可以这样输入:,　　mkpasswd -l 8 - C 3,好了，密码就会按你的要求随机产生了,　　yum -y install expect,　　ip_list.txt为远程服务器IP列表,　　[root@manage .ssh]# cat ip_list.txt,　　192.168.9.201,　　192.168.9.202,　　如果远程服务器修改了默认ssh的端口号，就使用ssh -p 17173，17173为端口号,　　#!/bin/bash,　　#============== Though ssh remote server ,auto modify ROOT passwd =============#,　　for IP in `cat /root/ip_list.txt` #导入远程要修改主机的IP,　　do,　　#========================= 创建远程主机密码 ==========================#,　　TMP_PWD=`mkpasswd -l 8 -C 3`,　　R_PWD=`echo ${IP}_${TMP_PWD}`,　　echo "${IP}_${TMP_PWD}" > R_PWD.txt,　　#=========================== 修改远程主机密码 ========================#,　　if [ $? = 0 ] ; then,　　ssh $IP passwd root --stdin < R_PWD.txt,　　echo -e "$(date "+%Y-%m-%d %H:%M:%S")t${IP}t${R_PWD}t" >> R_Server.log,　　else,　　echo -e "$(date "+%Y-%m-%d %H:%M:%S")t${IP} R_PWD.txt is create failtplease check!t" >> M_pass.log,　　fi,　　if [ $? = 0 ] ; then,　　echo -e "$(date "+%Y-%m-%d %H:%M:%S")tThe ${IP} passwd is modify OKt" >> M_pass.log,　　else,　　echo -e "$(date "+%Y-%m-%d %H:%M:%S")tThe ${IP} passwd is modify failtplease check!t" >> M_pass.log,　　fi,　　done,