Juniper SRX Password Recovery

Fryguy — Thu, 28 Sep 2017 12:00:03 +0000

I can imagine that is how I looked when I got my “new” Juniper SRX from (insert favorite auction site) and booted it the first time. All ready to play with my new toy – lab some new ideas – and boom, it has a password on it already. Grrrr…. Since I had to recover the root password, figured I would post the procedure here in case others are looking for it. Not only in case others are looking for it, the next time that I need it as well! 🙂 So the first thing we need to do here is to make sure the device is powered off and we have a console cable connected to it. I will assume you know how to use your terminal program and access the console already for this post otherwise I suspect you would not be here. Now that you are connected we can go ahead and power the SRX on and watch it boot. In order to boot the system into single user mode, we need to press the space bar when prompted. It will be right at this point in the boot process – right when you see _Hit [Enter} to boot immediately, or space bar for command prompt. _Here you need to press the SPACE BAR quick to interrupt the boot process.

FreeBSD/MIPS U-Boot bootstrap loader, Revision 2.5
(slt-builder@slt-junos15.juniper.net, Tue Apr 2 12:36:46 PDT 2013)
Memory: 2048MB
[0]Booting from nand-flash slice 1
Un-Protected 1 sectors
writing to flash…
Protected 1 sectors
Loading /boot/defaults/loader.conf
/kernel data=0xb99284+0x13c8b4 syms=[0x4+0x91b00+0x4+0xd5dfb]

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Juniper SRX Password Recovery