Graphical Network Simulator 3

Graphical Network Simulator-3 (shortened to GNS3) is a network software emulator first released in 2008. It allows the combination of virtual and real devices, used to simulate complex networks.
It uses Dynamips emulation software to simulate Cisco IOS.

GNS3 is used by many large companies including Exxon, Walmart, AT&T and NASA, and is also popular for preparation of network professional certification exams.
As of 2015, the software has been downloaded 11 million times.


QEMU Virtualization

QEMU (short for Quick Emulator) is a free and open-source hosted hypervisor that performs hardware virtualization (not to be confused with hardware-assisted virtualization).

QEMU is a hosted virtual machine monitor: it emulates CPUs through dynamic binary translation and provides a set of device models, enabling it to run a variety of unmodified guest operating systems.
It also can be used with KVM to run virtual machines at near-native speed (requiring hardware virtualization extensions on x86 machines).
QEMU can also do CPU emulation for user-level processes, allowing applications compiled for one architecture to run on another.


Hackers Manifesto

The following was written shortly after his arrest…
The Conscience of a Hacker by The Mentor
Written on January 8, 1986

Another one got caught today, it’s all over the papers.
“Teenager Arrested in Computer Crime Scandal”,
“Hacker Arrested after Bank Tampering”…

Damn kids.  They’re all alike.

But did you, in your three-piece psychology and 1950’s technobrain,
ever take a look behind the eyes of the hacker?
Did you ever wonder what made him tick, what forces shaped him, what may have molded him?

I am a hacker, enter my world…
Mine is a world that begins with school… I’m smarter than most of
the other kids, this crap they teach us bores me…

Damn underachiever.  They’re all alike.

I’m in junior high or high school.
I’ve listened to teachers explain for the fifteenth time how to reduce a fraction.
I understand it.  “No, Ms. Smith, I didn’t show my work. I did it in my head…”

Damn kid.  Probably copied it.  They’re all alike.

I made a discovery today.
I found a computer.
Wait a second, this is cool.
It does what I want it to.
If it makes a mistake, it’s because I screwed it up.
Not because it doesn’t like me…
Or feels threatened by me…
Or thinks I’m a smart ass…
Or doesn’t like teaching and shouldn’t be here…

Damn kid.  All he does is play games.  They’re all alike.

And then it happened… a door opened to a world… rushing through
the phone line like heroin through an addict’s veins, an electronic pulse is
sent out, a refuge from the day-to-day incompetencies is sought… a board is

“This is it… this is where I belong…”
I know everyone here… even if I’ve never met them, never talked to
them, may never hear from them again… I know you all…

Damn kid.  Tying up the phone line again.  They’re all alike…

You bet your ass we’re all alike… we’ve been spoon-fed baby food at
school when we hungered for steak… the bits of meat that you did let slip
through were pre-chewed and tasteless.
We’ve been dominated by sadists, or ignored by the apathetic.
The few that had something to teach found us will-
ing pupils, but those few are like drops of water in the desert.

This is our world now… the world of the electron and the switch, the
beauty of the baud.
We make use of a service already existing without paying
for what could be dirt-cheap if it wasn’t run by profiteering gluttons, and
you call us criminals.
We explore… and you call us criminals.
We seek after knowledge… and you call us criminals.
We exist without skin color, without nationality, without religious bias… and you call us criminals.
You build atomic bombs, you wage wars, you murder, cheat, and lie to us
and try to make us believe it’s for our own good, yet we’re the criminals.

Yes, I am a criminal.
My crime is that of curiosity.
My crime is that of judging people by what they say and think, not what they look like.
My crime is that of outsmarting you, something that you will never forgive me

I am a hacker, and this is my manifesto.
You may stop this individual, but you can’t stop us all… after all, we’re all alike.

+++ The Mentor +++


Nagios Core v4.1.1

Ok, so this shit is kinda getting on my nerves.
I have been fucking around with the configuration files
for some time now and i just cant seem to get ahold of things.

So, after researching solutions for adding hosts, changing different types
of configurations and so on i have found something called ..

I will give you a status report eventually.