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now, we are going to edit the apache configuration file, the name of that file is httpd.config now

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in that file.

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What we are going to do, we are going to add one directory, the name of the directory is ServerName.

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172.24.0.1 where 172.24.

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0.1 is the IP address on which Web server will be implemented, because sometimes what happened

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on your system, there could be more than one address.

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So here we are going to specify that mean on which IP address we want to listen.

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That mean on which IP address our web server.

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will be handling the request that client have to connect which IP address.

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So here we are going to specify the parameters servername.

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In our case, we are going to launch it on 172.24.0.1.

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And if you are not going to specify this servername directory, what will happen if this master system is going

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to have three addresses

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Then your apache will be listening on all the three, that mean it will be serving the Web page on all

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the addresses.

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so in our case, we are going to specify the servername directory as directive as 172.24

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0.1.

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And we will be editing this file by using the Vi editor, and we will open this file in vi editor and we

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are going to configure this option.

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And please remember that mean Vi editor, it is not necessary that you have to use the Vi editor. You can use

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a nano editor also.

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But in our case or in my case, I will be using the Vi editor and then later on after when we have made

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the changes, what we are going to do, we will check that also, how we are going to check the command

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is cat the name of the file and we will be using one grep option.

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And please remember, in this course, we will be using lot of time.

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We will be using the grep.

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command.

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grep command is used for searching the file.

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And when we specify this carrot symbol, we are saying that in the beginning of line.

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This keyword should be the there this string should be there.

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So now we want to search in that file if there is any line.

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Which start with servername.

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Please show us so in our case, what it is going to show us, it is going to show us servername 172.24.0.

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1.

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And sometimes what we want, we want that this line should be displayed or certain previous line

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or after line should be also display.

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So we can use the, one parameter or one option -B1 mean before one that mean

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just show us one line before that also.

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And if I am going to say -A1 what it is going to say.

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Show.

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One line after that string also.

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So we will be making a lot of use of the grep because showing this http file full in slides

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or.

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It is very difficult because this file is very large.

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So we will be using a lot of grep command.

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And this is by pipe symbol, that mean we are sending the output to grep symbol and we are saying that please

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search this string so it will show us that everything is OK.

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So now we are going to make these changes because we want our Apache Web server to listen on this.

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Uh.