Iptables is a  firewall on linux  os.You can manage your ınput and output traffic with a lots of properties.You can use iptables like a router, nat or proxy too.

There are three default chain comes with  iptables.These are

Input:You can arrenge packets that comes to your computer.

Forward:You can arrrange packets that forwarded on your computer.

Output:You can arrange your output packets from your computer.

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Introduction to Shell Scripting-1

Shell script is  a text file that contain a series commands for a Unix-based operating system . Firstly we need an editor like Vim, to install vim

As you know vim is a programmer editor . To open a vim text file write to console

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Fundamentals of Linux

What is Linux Shell?

Computers understand the language of zeros and ones that known binary language.Is it possible to control computers with  zeros and ones?It is too difficult to read and write and shell is a program that  remove all these difficulties.It executes commands read from the standard input device such as keyboard or from a file and translate it into computer binary language.

To find your shell type, open terminal then use this command:

My shell is bash.

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A bridge between Linux and Life

After a long time I am starting to write again, my posts will be usually about technical subjects and also rarely  about me:)Because of writing in english is that I would like to appeal to the whole people all over the world.These are enough for now, Let’s start to act:)

What is Linux?

Linux is basicly an open source operating system and freely distributable too. If you are dealing with computers and like research, I can say that linux was brought to life by Linus Torvalds for you:) If you are reading this post, at least you are using an operating system and I think so it should be a windows distribution with a big possibility. Now, It is time to break your chains and  also time to be free:)

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