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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="AEN21708"
>30.15. Configure your <TT
CLASS="filename"
>php.ini</TT
> from PHP4</A
></H1
><P
>&#13;        Another setting you need to configure is in your PHP4 configuration file <TT
CLASS="filename"
>/etc/httpd/php.ini</TT
>. This modification is required in order to define which features, such as <SPAN
CLASS="acronym"
>IMAP</SPAN
>, PostgreSQL and others,
        are to be loaded automatically by PHP4. Since we decided to use PostgreSQL as our database, and need to use <SPAN
CLASS="acronym"
>IMAP</SPAN
> features in our Webmail software, we must define them in the <TT
CLASS="filename"
>php.ini</TT
> configuration
        file of PHP4.
      </P
><P
>&#13;        Edit the <TT
CLASS="filename"
>php.ini</TT
> file, <B
CLASS="command"
>vi</B
> <TT
CLASS="filename"
>/etc/httpd/php.ini</TT
>, and add under the Dynamic Extensions section your desired choices. In our case, as you can see, we chose <SPAN
CLASS="acronym"
>IMAP</SPAN
>
        and PostgreSQL support:
        <TABLE
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WIDTH="100%"
><TR
><TD
><PRE
CLASS="programlisting"
>&#13;          extension=imap.so		; Added for IMAP support
          extension=pgsql.so		; Added for PostgreSql support
          extension=mysql.so		; Added for MySql support
          extension=ldap.so		; Added for LDAP support
        </PRE
></TD
></TR
></TABLE
>
      </P
><P
>&#13;        You must tell where to look when including files that don't have absolute paths as well, to automatically prepend the contents of phplib's <TT
CLASS="filename"
>prepend.php3</TT
> to each file, and turns off magic quotes.
        Edit the <TT
CLASS="filename"
>php.ini</TT
> file, <B
CLASS="command"
>vi</B
> <TT
CLASS="filename"
>/etc/httpd/php.ini</TT
> and add the following parameters to the related lines:
        <TABLE
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><TD
><PRE
CLASS="programlisting"
>&#13;          magic_quotes_gpc        	=   Off
          auto_prepend_file       	=   "/home/httpd/php/prepend.php3"
          include_path 			=   "/home/httpd/horde:/home/httpd/php"
        </PRE
></TD
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>
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><H2
CLASS="section"
><A
NAME="AEN21728"
>30.15.1. Configure Apache to recognize Webmail IMP</A
></H2
><P
>&#13;          Once Webmail <SPAN
CLASS="acronym"
>IMP</SPAN
> has been installed in the system, we must add the following lines in the <TT
CLASS="filename"
>httpd.conf</TT
> file of Apache to be able to locate and use its features.
        </P
><P
>&#13;          Edit the <TT
CLASS="filename"
>httpd.conf</TT
> file, <B
CLASS="command"
>vi</B
> <TT
CLASS="filename"
>/etc/httpd/conf/httpd.conf</TT
> and add the following lines between the section tags &#60;IfModule mod_alias.c&#62; and &#60;/IfModule&#62;:
          <TABLE
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><PRE
CLASS="programlisting"
>&#13;            Alias /horde/ "/home/httpd/horde/"
            &#60;Directory "/home/httpd/horde"&#62;
            Options None
            AllowOverride None
            Order allow,deny
            Allow from all
            &#60;/Directory&#62;

            Alias /imp/ "/home/httpd/horde/imp/"
            &#60;Directory "/home/httpd/horde/imp"&#62;
            Options None
            AllowOverride None
            Order allow,deny
            Allow from all
            &#60;/Directory&#62;
          </PRE
></TD
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>
        </P
><P
>&#13;          You must restart the Apache web server for the changes to take effect, use the following commands:
          <TABLE
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><TD
><PRE
CLASS="screen"
>&#13;            [root@deep ] /# /etc/rc.d/init.d/httpd <B
CLASS="command"
>restart</B
>
          </PRE
></TD
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>
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CLASS="computeroutput"
>&#13;            Shutting down http:                                        	[  OK  ]
            Starting httpd:                                            	[  OK  ]
          </TT
></PRE
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>
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