原创作品，允许转载，转载时请务必以超链接形式标明文章 、作者信息和本声明。否则将追究法律责任。
一、批量管理
1.配置问密码登陆
[root@localhost ~]# ssh-keygen -t dsa（生成密钥）
Generating public/private dsa key pair.Enter file in which to save the key (/root/.ssh/id_dsa): Created directory '/root/.ssh'.Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_dsa.Your public key has been saved in /root/.ssh/id_dsa.pub.The key fingerprint is:21:e3:80:d8:34:10:6c:26:8b:4c:72:fc:02:26:e5:8d root@localhost.localdomain[root@localhost ~]#[root@localhost ~]# ssh-copy-id -i .ssh/id_dsa.pub 119.147.146.245（拷贝公钥到要登陆的服务器）
15The authenticity of host '119.147.146.245 (119.147.146.245)' can't be established.RSA key fingerprint is ba:7d:60:44:63:6c:f6:6a:9b:4b:ad:94:1b:98:2b:58.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added '119.147.146.245' (RSA) to the list of known hosts.root@119.147.146.245's password: Now try logging into the machine, with "ssh '119.147.146.245'", and check in: .ssh/authorized_keysto make sure we haven't added extra keys that you weren't expecting.
[root@localhost ~]# ssh 119.147.146.245 ifconfig（远程查看单台服务器的IP）
eth0 Link encap:Ethernet HWaddr 00:50:56:88:0F:01 inet addr:119.147.146.245 Bcast:119.147.146.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fe88:f01/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:18264423 errors:0 dropped:0 overruns:0 frame:0 TX packets:1716785 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7166025790 (6.6 GiB) TX bytes:162270128 (154.7 MiB) Base address:0x2000 Memory:d8920000-d8940000远程查看多台服务器的信息箱
[root@localhost tmp]# echo 119.147.146.245 >>iplist（生成IP列表）
[root@localhost tmp]# echo 119.147.146.249 >>iplist
[root@localhost tmp]# echo 119.147.146.248 >>iplist
[root@localhost tmp]# vi manger.sh（撰写脚本）
#!/bin/bashfor ip in `cat iplist`do echo "$ip----------------------------------------" ssh $ip $1done[root@localhost tmp]# sh manger.sh df -h（远程查看多台服务器的硬盘信息）
119.147.146.245----------------------------------------Filesystem 1K-blocks Used Available Use% Mounted on/dev/mapper/VolGroupRoot-LogVolRoot 14093368 3488436 9877484 27% //dev/sda1 101086 19012 76855 20% /boottmpfs 513468 0 513468 0% /dev/shm/dev/sda5 53050708 185320 50170488 1% /mfsdata1/dev/sda6 39065388 968620 36112344 3% /mfsdata2/dev/sda7 39998020 968620 36997584 3% /mfsdata3119.147.146.249----------------------------------------Filesystem 1K-blocks Used Available Use% Mounted on/dev/mapper/VolGroupRoot-LogVolRoot 10125560 3941852 5661060 42% //dev/mapper/VolGroupData-LogVolData 14220336 553532 12932804 5% /data/dev/mapper/VolGroupData-LogVolLogs 4951688 141196 4554904 4% /data/logs/dev/sda1 101086 12922 82945 14% /boottmpfs 513068 0 513068 0% /dev/shm119.147.146.248----------------------------------------Filesystem 1K-blocks Used Available Use% Mounted on/dev/mapper/VolGroupRoot-LogVolRoot 10125560 4159936 5442976 44% //dev/mapper/VolGroupData-LogVolData 14220336 189528 13296808 2% /data/dev/mapper/VolGroupData-LogVolLogs 4951688 141208 4554892 4% /data/logs/dev/sda1 101086 21349 74518 23% /boottmpfs 513068 0 513068 0% /dev/shm
[root@localhost tmp]# sh manger.sh free -m（远程查看多台服务器的内存使用情况）
119.147.146.245---------------------------------------- total used free shared buffers cachedMem: 1026936 885652 141284 0 68036 711216-/+ buffers/cache: 106400 920536Swap: 4194296 108 4194188119.147.146.249---------------------------------------- total used free shared buffers cachedMem: 1026140 1016284 9856 0 154076 690928-/+ buffers/cache: 171280 854860Swap: 1052248 88 1052160119.147.146.248---------------------------------------- total used free shared buffers cachedMem: 1026140 977656 48484 0 48076 758976-/+ buffers/cache: 170604 855536Swap: 1052248 8 1052240
[root@localhost tmp]# sh manger.sh "useradd admin"（批量建用户）
119.147.146.245----------------------------------------119.147.146.249----------------------------------------119.147.146.248----------------------------------------[root@localhost tmp]# sh manger.sh "echo 'king+5688'|passwd --stdin admin"（批量更改密码）
119.147.146.245----------------------------------------Changing password for user admin.passwd: all authentication tokens updated successfully.119.147.146.249----------------------------------------Changing password for user admin.passwd: all authentication tokens updated successfully.119.147.146.248----------------------------------------Changing password for user admin.passwd: all authentication tokens updated successfully.
二、批量分发
[root@localhost tmp]# cat fenfa.sh （撰写脚本）
#!/bin/bashfor ip in `cat iplist`do echo "$ip----------------------------------------" scp -r -p $1 $ip $2done
[root@localhost tmp]# sh fenfa.sh /etc /tmp/（把/etc目录拷贝到多台远程服务器上的/tmp下
[root@localhost tmp]# ls（验证）
etc三、通过普通用户实现远程分发文件，远程管理
1.新建普通用户admin 密码：123456
[root@localhost tmp]# sh manger.sh "useradd admin"（批量建用户）
119.147.146.245----------------------------------------119.147.146.249----------------------------------------119.147.146.248----------------------------------------2.生成密钥拷贝到对端
[admin@localhost ~]$ ssh-keygen -t dsa
Generating public/private dsa key pair.Enter file in which to save the key (/home/admin/.ssh/id_dsa): Created directory '/home/admin/.ssh'.Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/admin/.ssh/id_dsa.Your public key has been saved in /home/admin/.ssh/id_dsa.pub.The key fingerprint is:00:1f:1c:fa:a2:e0:79:cc:a4:24:92:47:de:3e:bf:fb admin@localhost.localdomain
[admin@localhost .ssh]$ ssh-copy-id -i id_dsa.pub 119.147.146.245
10The authenticity of host '119.147.146.245 (119.147.146.245)' can't be established.RSA key fingerprint is ba:7d:60:44:63:6c:f6:6a:9b:4b:ad:94:1b:98:2b:58.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added '119.147.146.245' (RSA) to the list of known hosts.admin@119.147.146.245's password: Now try logging into the machine, with "ssh '119.147.146.245'", and check in: .ssh/authorized_keysto make sure we haven't added extra keys that you weren't expecting.3.撰写脚本（和上面的一样）
[admin@localhost ~]$ ls
fenfa.sh iplist manger.sh4.测试
拷贝本地的/etc目录到多台远程服务器的/tmp目录下
[admin@localhost ~]$ su - root /home/admin/fenfa.sh /etc /tmp
Password: （输入root密码）119.147.146.245----------------------------------------mime.types 100% 14KB 13.8KB/s 00:00 virc 100% 1533 1.5KB/s 00:00 .bashrc 100% 124 0.1KB/s 00:00 .bash_profile 100% 176 0.2KB/s 00:00 .bash_logout 100% 33 0.0KB/s 00:00 .zshrc 100% 658 0.6KB/s 00:00查看远程服务器内存使用情况
[admin@localhost ~]$ su - root /home/admin/manger.sh "free -m"
Password: （输入root密码）119.147.146.245---------------------------------------- total used free shared buffers cachedMem: 1002 966 36 0 86 756-/+ buffers/cache: 123 879Swap: 4095 0 4095119.147.146.249---------------------------------------- total used free shared buffers cachedMem: 1002 951 50 0 146 676-/+ buffers/cache: 129 872Swap: 1027 0 1027119.147.146.248---------------------------------------- total used free shared buffers cachedMem: 1002 962 40 0 60 739-/+ buffers/cache: 162 839Swap: 1027 0 1027其实用普通用户做批量管理，批量分发就是多了一步输入root的密码的步骤，这样做的目的是为了安全
本文出自 “” 博客，请务必保留此出处