265 lines
5.7 KiB
HTML
265 lines
5.7 KiB
HTML
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
> Components to Install- Package Group Selection
|
|
</TITLE
|
|
><META
|
|
NAME="GENERATOR"
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.60"><LINK
|
|
REL="HOME"
|
|
TITLE="Securing and Optimizing Linux"
|
|
HREF="index.html"><LINK
|
|
REL="UP"
|
|
TITLE="Installation of your Linux Server"
|
|
HREF="installlin.html"><LINK
|
|
REL="PREVIOUS"
|
|
TITLE="Post-Partitioning"
|
|
HREF="chap3sec16.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="Select Individual Package - Part 'A'"
|
|
HREF="chap3sec18.html"></HEAD
|
|
><BODY
|
|
CLASS="section"
|
|
BGCOLOR="#FFFFFF"
|
|
TEXT="#000000"
|
|
LINK="#0000FF"
|
|
VLINK="#840084"
|
|
ALINK="#0000FF"
|
|
><DIV
|
|
CLASS="NAVHEADER"
|
|
><TABLE
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TH
|
|
COLSPAN="3"
|
|
ALIGN="center"
|
|
>Securing and Optimizing Linux: RedHat Edition -A Hands on Guide</TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="left"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="chap3sec16.html"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
>Chapter 3. Installation of your Linux Server</TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="chap3sec18.html"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="section"
|
|
><H1
|
|
CLASS="section"
|
|
><A
|
|
NAME="AEN1033"
|
|
>3.8. Components to Install- Package Group Selection</A
|
|
></H1
|
|
><P
|
|
> After your partitions have been configured and selected for formatting, you are ready to select packages for installation. By
|
|
default, Linux is a powerful operating system that executes many useful services. However, many of these services are unneeded
|
|
and pose potential security risks.
|
|
</P
|
|
><P
|
|
> Ideally, each network service should be on a dedicated, single-purpose host. Many Linux operating systems are configured by default
|
|
to provide a wider set of services and applications than are required to provide a particular network service, so you may need to configure
|
|
the server to eliminate unneeded services. Offering only essential services on a particular host can enhance your network security in
|
|
several ways:
|
|
<P
|
|
></P
|
|
><UL
|
|
><LI
|
|
STYLE="list-style-type: disc"
|
|
><P
|
|
>
|
|
Other services cannot be used to attack the host and impair or remove desired network services.
|
|
</P
|
|
></LI
|
|
><LI
|
|
STYLE="list-style-type: disc"
|
|
><P
|
|
> Different individuals may administer different services. By isolating services so each host and service has a single administrator you will
|
|
minimize the possibility of conflicts between administrators.
|
|
</P
|
|
></LI
|
|
><LI
|
|
STYLE="list-style-type: disc"
|
|
><P
|
|
> The host can be configured to better suit the requirements of the particular service. Different services might require different hardware and
|
|
software configurations, which could lead to needless vulnerabilities or service restrictions.
|
|
</P
|
|
></LI
|
|
></UL
|
|
>
|
|
By reducing services, the number of logs and log entries is reduced so detecting unexpected behavior becomes easier.
|
|
</P
|
|
><P
|
|
> A proper installation of your Linux server is the first step to a stable, secure system. You first have to choose which system components you
|
|
want to install. Choose the components, and then you can go through and select or deselect each individual package of each component by
|
|
selecting <TT
|
|
CLASS="userinput"
|
|
><B
|
|
>Select individual packages</B
|
|
></TT
|
|
> option on your Red Hat setup screen.
|
|
Since we are configuring a Linux Server, we don't need to install a graphical interface <TT
|
|
CLASS="literal"
|
|
>XFree86</TT
|
|
> on our system, <EM
|
|
>a graphical interface on a server
|
|
means less processes, less <SPAN
|
|
CLASS="acronym"
|
|
>CPU</SPAN
|
|
> availability, less memory, security risks, and so on</EM
|
|
>. Graphical interfaces are usually used on workstations only.
|
|
</P
|
|
><P
|
|
>
|
|
Select the following packages for installation:
|
|
<P
|
|
></P
|
|
><TABLE
|
|
BORDER="0"
|
|
><TBODY
|
|
><TR
|
|
><TD
|
|
> <TT
|
|
CLASS="userinput"
|
|
><B
|
|
>Networked Workstation</B
|
|
></TT
|
|
>
|
|
</TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
> <TT
|
|
CLASS="userinput"
|
|
><B
|
|
>Network Management Workstation</B
|
|
></TT
|
|
>
|
|
</TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
> <TT
|
|
CLASS="userinput"
|
|
><B
|
|
>Utilities</B
|
|
></TT
|
|
>
|
|
</TD
|
|
></TR
|
|
></TBODY
|
|
></TABLE
|
|
><P
|
|
></P
|
|
>
|
|
</P
|
|
><P
|
|
> After selecting the components you wish to install, you may select or deselect packages.
|
|
<DIV
|
|
CLASS="important"
|
|
><BLOCKQUOTE
|
|
CLASS="important"
|
|
><P
|
|
><B
|
|
><SPAN
|
|
CLASS="inlinemediaobject"
|
|
><IMG
|
|
SRC="./images/Important.gif"
|
|
ALT="Important"
|
|
></IMG
|
|
></SPAN
|
|
>: </B
|
|
>
|
|
Select the <B
|
|
CLASS="command"
|
|
>Select individual packages</B
|
|
> options before continuing to have the option to select
|
|
and deselect packages.
|
|
</P
|
|
></BLOCKQUOTE
|
|
></DIV
|
|
>
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="NAVFOOTER"
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"><TABLE
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="chap3sec16.html"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="index.html"
|
|
>Home</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="chap3sec18.html"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>Post-Partitioning</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="installlin.html"
|
|
>Up</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>Select Individual Package - Part 'A'</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |