编写快速登陆服务器的脚本
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
一.便携脚本
1>.安装依赖包
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# yum -y install sshpass Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 extras | 3.4 kB 00:00:00 updates | 3.4 kB 00:00:00 (1/2): extras/7/x86_64/primary_db | 187 kB 00:00:00 (2/2): updates/7/x86_64/primary_db | 3.3 MB 00:00:01 Resolving Dependencies --> Running transaction check ---> Package sshpass.x86_64 0:1.06-2.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================================================================================================================================== Package Arch Version Repository Size =================================================================================================================================================================================================================== Installing: sshpass x86_64 1.06-2.el7 extras 21 k Transaction Summary =================================================================================================================================================================================================================== Install 1 Package Total download size: 21 k Installed size: 38 k Downloading packages: sshpass-1.06-2.el7.x86_64.rpm | 21 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Warning: RPMDB altered outside of yum. Installing : sshpass-1.06-2.el7.x86_64 1/1 Verifying : sshpass-1.06-2.el7.x86_64 1/1 Installed: sshpass.x86_64 0:1.06-2.el7 Complete! [root@node101.yinzhengjie.org.cn ~]#
2>.便携脚本
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# cat /usr/local/bin/clientServer.sh #!/bin/bash #@author :yinzhengjie #blog:http://www.cnblogs.com/yinzhengjie #EMAIL:y1053419035@qq.com host=$1 passwd="yinzhengjie" sshpass -p ${passwd} ssh root@${host} -o StrictHostKeyChecking=no [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# ll /usr/local/bin/clientServer.sh -rw-r--r--. 1 root root 199 Mar 21 11:11 /usr/local/bin/clientServer.sh [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# chmod +x /usr/local/bin/clientServer.sh [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# ll /usr/local/bin/clientServer.sh -rwxr-xr-x. 1 root root 199 Mar 21 11:11 /usr/local/bin/clientServer.sh [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
3>.测试脚本
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# cat /etc/hosts | grep yinzhengjie 172.30.1.101 node101.yinzhengjie.org.cn 172.30.1.102 node102.yinzhengjie.org.cn 172.30.1.103 node103.yinzhengjie.org.cn 172.30.1.104 node104.yinzhengjie.org.cn 172.30.1.105 node105.yinzhengjie.org.cn 172.30.1.106 node106.yinzhengjie.org.cn [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# clientServer.sh node102.yinzhengjie.org.cn Last login: Thu Mar 21 11:07:53 2019 from 172.30.1.101 [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# who root pts/0 2019-03-21 11:13 (172.30.1.101) [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# exit logout Connection to node102.yinzhengjie.org.cn closed. [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# clientServer.sh node103.yinzhengjie.org.cn Last login: Tue Mar 19 13:50:35 2019 from 172.30.1.2 [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# who root pts/0 2019-03-21 11:13 (172.30.1.101) [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# exit logout Connection to node103.yinzhengjie.org.cn closed. [root@node101.yinzhengjie.org.cn ~]#
二.为脚本加密
上面我们通过脚本的确是可以远程登陆服务器，细心的小伙伴会发现以上脚本很缺乏安全感，就是密码是都一样才可以使用该脚本！而且在文件中编写脚本的话密码是明文方式保存，稍微会点Linux的人看到后可能会做坏事！因此，我们需要对脚本进行加密操作，这样别人拿到后就没法看到脚本的真实内容啦～
1>.加密脚本
2>.测试加密后的脚本
3>.解密脚本
原文：https://www.cnblogs.com/yinzhengjie/p/10570254.html
