Tag Archives: NX-OS

Hacking NX-OS Part 3

Some notes from when I first started hacking away at NX-OS in 2011: Basically the Nexus underlying operating system, made by MonteVista, which was formally called Hard Hat Linux (a hardened version of Red Hat Linux).  I can tell you … Continue reading

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Hacking NX-OS Part 2

You can see in my previous article, that I used the “bash” command.  In later NX-OS versions this was not possible.  After rooting the box, I spent a lot of time learning about all of the shell scripts and binaries … Continue reading

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Hacking NX-OS Part 1

Some of you may know me as a sage hacker from the mid 80’s to the early 90’s.  Although, if you met me after 1994, most of you probably don’t know that about me at all.  It was a previous … Continue reading

Posted in CCIE Routing and Switching, CCIE Storage, Cisco, Network Technology, Nexus, NX-OS | Tagged , | Leave a comment

Deconstructing Cisco NX-OS Part 2: Exploding the System Image

Previously I wrote on how to look inside of the NX-OS kickstart image.  This post will be how to look inside the NX-OS system image.  The system image is not “booted” like the kickstart image.  Its loaded into place by … Continue reading

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Deconstructing Cisco NX-OS Part 1: Exploding Kickstart

I have worked for quite some time with SAN-OS, which later became the basis for NX-OS. Being the tinkerer that I am, I really like to get inside things and figure how they work. My past experience with UNIX based … Continue reading

Posted in Cisco, Nexus, NX-OS | Tagged , , | 5 Comments