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>Securing and Optimizing Linux: RedHat Edition -A Hands on Guide</TH
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>Chapter 30. Optional component to install with Apache</TD
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><H1
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><A
NAME="pr6ch30swblzr"
>30.1. Linux Webalizer</A
></H1
><P
>&#13;      A web server like Apache logs all predefined log entry information into a text file that can be viewed and analyzed by the web administrator. This file can also be evaluated by a special program which can produce the information in a
      graphical presentation, making interpretation easier for the administrator.
    </P
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><A
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></A
><P
><B
>As per in the [<SPAN
CLASS="citation"
>README</SPAN
>] file of Webalizer:</B
></P
><P
>&#13;        The Webalizer is a web server log file analysis program, which produces usage statistics in HTML format for viewing with a browser.  The results are presented in both columnar and graphical format, which facilitates
        interpretation. Yearly, monthly, daily and hourly usage statistics are presented, along with the ability to display usage by site, URL, referrer, user agent, <EM
>browser</EM
> and country, <EM
>user
        agent and referrer are only available if your web server produces Combined log format files</EM
>.
      </P
></DIV
></TD
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><P
>&#13;      These installation instructions assume
      <P
></P
><UL
><LI
><P
>&#13;          Commands are Unix-compatible.
        </P
></LI
><LI
><P
>&#13;        The source path is <TT
CLASS="filename"
>/var/tmp</TT
>, <EM
>other paths are possible</EM
>.
        </P
></LI
><LI
><P
>&#13;        Installations were tested on Red Hat Linux 6.1 and 6.2.
        </P
></LI
><LI
><P
>&#13;        All steps in the installation will happen in super-user account <TT
CLASS="literal"
>root</TT
>.
        </P
></LI
><LI
><P
>&#13;        Webalizer version number is 1_30-04
        </P
></LI
></UL
>
    </P
><P
>&#13;      These are the Package(s):
      <P
></P
><TABLE
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><TBODY
><TR
><TD
>&#13;          Webalizer Homepage: <A
HREF="appendixa.html#prtinxfp33"
>http://www.mrunix.net/webalizer/</A
>
        </TD
></TR
><TR
><TD
>&#13;        Webalizer FTP Site: <A
HREF="appendixa.html#prtinxfp33"
>207.153.121.6</A
>
        </TD
></TR
><TR
><TD
>&#13;        You must be sure to download: webalizer-1_30-04-src.tgz
        </TD
></TR
></TBODY
></TABLE
><P
></P
>
    </P
><P
>&#13;      Before you compile, decompress the tarball (tar.gz).
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><TR
><TD
><PRE
CLASS="screen"
>&#13;        [root@deep /]# <B
CLASS="command"
>cp</B
> webalizer-version-src.tgz /var/tmp/
        [root@deep /]# <B
CLASS="command"
>cd</B
> /var/tmp/
        [root@deep ]/tmp# <B
CLASS="command"
>tar</B
> xzpf webalizer-version-src.tgz
      </PRE
></TD
></TR
></TABLE
>
    </P
><DIV
CLASS="important"
><BLOCKQUOTE
CLASS="important"
><P
><B
><SPAN
CLASS="inlinemediaobject"
><IMG
SRC="./images/Important.gif"
ALT="Important"
></IMG
></SPAN
>: </B
>
        There are a few prerequisites; the Webalizer requires that the <SPAN
CLASS="acronym"
>GD</SPAN
> Graphics Library, which is required for generating inline graphics for the Webalizer program, be already installed on your system. If this is
        not the case, you must install it from your Red Hat Linux CD-ROM.
      </P
></BLOCKQUOTE
></DIV
><P
>&#13;      To verify that the <SPAN
CLASS="acronym"
>GD</SPAN
> package is installed on your Linux system, use the following command:
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><TR
><TD
><PRE
CLASS="screen"
>&#13;        [root@deep /]# <B
CLASS="command"
>rpm</B
> -qi gd
      </PRE
></TD
></TR
></TABLE
>
      <TABLE
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><TR
><TD
><PRE
CLASS="literallayout"
><TT
CLASS="computeroutput"
>&#13;        package gd is not installed
      </TT
></PRE
></TD
></TR
></TABLE
>

      To install the <SPAN
CLASS="acronym"
>GD</SPAN
> packages on your Linux system, use the following command:
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><TR
><TD
><PRE
CLASS="screen"
>&#13;        [root@deep /]# <B
CLASS="command"
>mount</B
> /dev/cdrom /mnt/cdrom/
        [root@deep /]# <B
CLASS="command"
>cd</B
> /mnt/cdrom/RedHat/RPMS/
        [root@deep ]/RPMS# <B
CLASS="command"
>rpm</B
> -Uvh gd-version.i386.rpm
      </PRE
></TD
></TR
></TABLE
>
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><TR
><TD
><PRE
CLASS="literallayout"
><TT
CLASS="computeroutput"
>&#13;        gd                          ##################################################
      </TT
></PRE
></TD
></TR
></TABLE
>
      <TABLE
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><TR
><TD
><PRE
CLASS="screen"
>&#13;        [root@deep ]/RPMS# <B
CLASS="command"
>rpm</B
> -Uvh gd-devel-version.i386.rpm
      </PRE
></TD
></TR
></TABLE
>
      <TABLE
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><TR
><TD
><PRE
CLASS="literallayout"
><TT
CLASS="computeroutput"
>&#13;        gd-devel                    ##################################################
      </TT
></PRE
></TD
></TR
></TABLE
>
      <TABLE
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><TR
><TD
><PRE
CLASS="screen"
>&#13;        [root@deep ]/RPMS# <B
CLASS="command"
>cd</B
> /; umount /mnt/cdrom/
      </PRE
></TD
></TR
></TABLE
>
    </P
><DIV
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><BLOCKQUOTE
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><P
><B
><SPAN
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><IMG
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ALT="Important"
></IMG
></SPAN
>: </B
>
        The Apache web server should be already installed on your system to be able to use Webalizer software, of course.
      </P
></BLOCKQUOTE
></DIV
><P
>&#13;      For more information on <A
HREF="netweb-Apache.html"
>Apache web server</A
>, see its related chapter in this book.
    </P
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