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Now, the question is why we created the index.php as a default page for your php code.

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So for that, we have to understand that we have to go into this cd /etc/httpd/ directory because all the files are there.

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Then we will run this tree command, in tree command.

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We will find that many files are there in conf directory.

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httpd.conf is there, bak file it there, then in conf.

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directory, we have got one file that is php.conf.

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So that file is important for us.

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So then we will open with a cat or head command this file, which is in your conf.d directory.

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php.conf file, here we are going to find one parameter DirectoryIndex index.php.

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So that is why we created the file, because when we run the Apache Web server, it reads the httpd.

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conf file.

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Then it reads one include directive, in include directive all the files in this directories are read.

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So what happens automatically

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This file also get read.

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So this DirectoryIndex index.php get activated.

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this directive.

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That is why we created, the DirectoryIndex directive will decide which files will be searched in what order to be

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delivered to web clients. The "index.php" is included in the directive.

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that is why we created the main file with name "index.php".

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Let us go into our master server first.

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What we are going to do, we will go into /etc/httpd

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Then we are going to run tree very useful command.

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It is showing us the whole directory structure.

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So here we have got one important file is there php.conf.

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So what we are going to do, we can open it with the cat command.

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also conf.d and file name is php.conf and this is very large file.

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So when we are going to open this, it is showing one option.

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That is DirectoryIndex option.

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this is why we have created this file.

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Now you can view this file what you can.

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If you want to view a few lines.

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So what we can specify, we can specify this command also.

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Head - line you want to display, so it is showing us the DirectoryIndex, and that is why we created

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that by default.

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We created that index.php file.

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That was the reason.