Kali Linux installation quirks

At first Kali was a bit overwhelming. During installation and also after installation. I really had a couple of difficulties during installation, which I was luckily able to solve. Also, of course I made a few good backups before getting to this. I like a good challenge but along the way it seemed it might…

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Kali Linux

To get the best of both worlds into my certification path, I’ve installed Kali Linux yesterday. It’s Linux (obviously) and it is the suite to have when you want to do some penetration testing and (ethical) hacking. What everybody warns about, you should consider very well. Kali is not an typical end user operating system….

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Addendum OSI model / PDUs

I would  like to make a small addendum to my previous post about the OSI model and PDUs. What was named quickly in the Network+ videos was what protocols actually function on which layers, which I found interesting. So let me enrich you with a few examples! To clarify a little bit, after mentioning the…

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OSI model and PDUs

Two concepts from my Network+ study: the OSI model and PDU. OSI stands for Open Systems Interconnect and is used as a conceptual model to ease data transmission and communication. Read more about it here and here. PDU stands for Protocol Data Unit and describes the unit that is being used on a particular layer…

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Shell history

Every command that you perform in your bash shell, will be recorded in your shell history. The first one is the most common one. ~/.bash_history ~/.history ~/.histfile This mechanism of all commands that are run on your system is, like VI and SSH, essentials for your everyday Linux administration. I’m using a very large hist…

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Some tar basics

From one of my previous Linux fundamentals courses some basics of this default archive command: tar. I really love it and its easy to use command line command and flags. It was really one of the first commands I began using in the command line on a regular basis. I believe this command is standard…

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