In the penetration testing/computer security field, why do I need to tcp/ip...

Not much of a pen tester if you don't know anything about basic network protocols.

> Do you need to know the internals of tcp/ip when using tools like nmap/wireshark?
Somewhat. Wiki is enough for me, all the info is here: fields, length, flags.

>Why do I need to TCP/IP?

please be b8 ffs m8... if not then maybe consider a different career!

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I'm asking why though, not complaining about learning anything, that's what's interesting.

Again I'm asking why, specifically. I've heard this a hundred times but I want specifics.

This is something, but some more info would be appreciated.

Again no answer

Take the icnd1/2 and get certified while learning. You will need a networking cert of any sort to even come close to getting looked at

Specifics? as the other guy said this is basic stuff. When you open wireshark how do you even begin to understand anything with out the knowledge of the tcp/ip stack. Also learn the 7 layer model and the 3 way handshake and you can maybe start to understand what you need to learn.

seriously, if you can't figure out tcp/ip, just get out now. you're not smart enough.

this

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> I'm asking why though
It's like reading another language: you can go with the dictionary, but it will be slow and tedious, to check every term, look for references, etc. An average specialist can, for example, look up tpcdump and say that a SYN, ACK, SYN, ACK, RST sequence equals connectivity troubles on the uplink.

'hacking' and security isn't a specific skill. Hacking is about combining knowledge from across all aspects of computing, from programming to OS usage to networking, to use in a specific way, ie to find and exploit vulnerabilities. As such, anyone who can 'hack' computers can only do so simply because they understand a lot lot about the internal workings of a computer, and that's it. So, when you say 'why do I need to know this specific aspect of computing', you're missing the point of what makes a good hacker, with bonus points for that actually being a pretty important aspect of hacking generally as well (networking is usually the only thing that makes a hack possible at all).

Here, to get my point across: youtube.com/watch?v=2TofunAI6fU

Most security threats are not going to have physical access to your network. If they do it's actual security's problem, not yours.

Lol, you're responding to someone else, but that doesn't change the fact you're a retarded skid.

k sperg

>Do I need to understand networking protocols to hack despite the fact that it takes 1 or 2 nights to learn?

You have to be 18 years or older to post here.

that boy looks cuddleable

i would like to pentest this boy's anus

how often does a hacker break into your house and stick his dongle into your system? I'd say probably not often. not having a decent understanding of tcp/ip/networking is pretty much leaving you open to where >99% of all your attacks are going to come from. aka: you're fucking useless from a security stand point.

Sounds about right