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批量修改远程linux服务器密码

发布时间:2018-10-31 13:10文章来源:未知文章作者: 点击次数:
摘要:#!/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 192.168.9.201192.168.9.202 为远程 linux 服务器

#!/bin/bash
# BY kerryhu
# MAIL:[email protected]
# 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、 [[email protected] ~]# 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 [[email protected] .ssh]# scp id_rsa.pub 192.168.9.201:/root/.ssh/authorized_keys [[email protected] .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 [[email protected] .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    echo -e "$(date "+%Y-%m-%d %H:%M:%S")\tThe ${IP} passwd is modify OK\t" >> M_pass.log else    echo -e "$(date "+%Y-%m-%d %H:%M:%S")\tThe ${IP} passwd is modify fail\nplease check!\t" >> M_pass.log fi done

 

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