今天為大家分享一篇關于：Juniper高端路由器Root密碼如何破解的教程：
Here,I take MX 960 as an example...

　　1.Reboot the system...

　　2.From console ,interrupt the boot routine...

　　Loading /boot/loader

　　Consoles: serial port

　　BIOS drive C: is disk0

　　BIOS drive D: is disk1

　　BIOS 622kB/3392176kB available memory

　　...

　　...

　　...

　　/boot/modules/mac_pcap.ko size 0x1878 at 0xdf8000

　　Hit [Enter] to boot immediately, or space bar for command prompt.

　　Booting [/kernel] in 5 second...(sometimes the waittime is changeable)

　　3.

　　Type '?' for a list of commands, 'help' for more detailed help.

　　OK

　　4.Enter into the single-user mode Type into :boot -s (and press Enter...

　　platform_early_bootinit: M/T Series Early Boot Initialization

　　GDB: debug ports: sio

　　...

　　...

　　...

　　5.If you have the following system output ,enter :recovery ,and hit Enter and skip to step 9

　　System watchdog timer disabled

　　Enter full pathname of shell or 'recovery' for root password recovery or RETURN for /bin/sh: recovery

　　6.Enter the shell:

　　System watchdog timer disabled

　　Jan 1 00:36:47 init: /etc/spwd.db: No such file or directory

　　Enter full pathname of shell or RETURN for /bin/sh:

　　7.Mount the virtual file systems .(Note that it is not necessary to mount the jbase package ;however the other packages still need to be mounted):

　　Note:To go to multi-user operation,exit the sing-user shell(with ctrl+D )

　　# cd /packages

　　# ./mount jbase

　　Mounted jbase package on /dev/vn1...

　　# ./mount jkernel

　　Mounted jkernel package on /dev/vn2...

　　# ./mount jroute

　　Mounted jroute package on /dev/vn3...

　　8.Enter the recovery mode :

　　# /user/libexec/ui/recovery-mode

　　9.Enter configure mode and change the root authentication password:

　　root>edit

　　Entering the configuration mode

　　[edit]

　　root# set system root-authentication plain-text-password

　　New password: Juniperlab

　　Retry new password:Juniperlab

　　10.Commit the changes ,and exit configuration mode

　　[edit]

　　# commit

　　commit complete

　　[edit]

　　# exit

　　Exiting configuration mode

　　root@router>exit

　　11.Exit recovery mode and enter 'y'when promted to reboot the system:

　　Reboot the system? [y/n] y

　　Terminated

　　The system now reboots and changes made to root authentication are activated.

　　我用的是一臺現網中的核心高端路由器MX 960做的。。。

　　1.重啟MX960，通過console線(RJ-45轉DB9接口)連到路由器

　　2.當出現下面的提示時，快速按下空格鍵(有時候設置的等待時間不一樣)

　　Hit [Enter] to boot immediately, or space bar for command prompt.

　　Booting [/kernel] in 5 second...

　　3.讓其自動加載，當出現下面提示時，輸入：(空格)boot -s

　　Type '?' for a list of commands, 'help' for more detailed help.

　　OK

　　4.回車;然后輸入：recovery 回車，讓其自動啟動。

　　啟動過程中會提示缺少或無法在指定默認目錄下找到系統密碼所在db文件，所以要手動創建;上面有創建方法和相應的操作步驟

　　5.進入恢復模式：

　　# /user/libexec/ui/recovery-mode

　　6.創建新的管理密碼：

　　。。。(上面有操作方法和步驟。。不詳述)

　　7.保存配置，退出。

　　8.重啟系統，即可完成密碼破解。