299 lines
4.3 KiB
HTML
299 lines
4.3 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Configure Red Hat Linux</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Remote Serial Console HOWTO"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Configure incidentals"
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HREF="misc.html"><LINK
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REL="PREVIOUS"
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TITLE="Configure Pluggable Authentication Modules"
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HREF="misc-pam.html"><LINK
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REL="NEXT"
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TITLE="Reboot and test"
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HREF="test.html"></HEAD
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><BODY
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CLASS="SECTION"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>Remote Serial Console HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="misc-pam.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 7. Configure incidentals</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="test.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECTION"
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><H1
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CLASS="SECTION"
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><A
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NAME="MISC-CONFIGURE-RHL"
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></A
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>7.7. Configure <SPAN
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CLASS="PRODUCTNAME"
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>Red Hat Linux</SPAN
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></H1
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><P
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><SPAN
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CLASS="PRODUCTNAME"
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>Red Hat Linux</SPAN
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> stores parameters concerning system start up in
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the file <TT
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CLASS="FILENAME"
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>/etc/sysconfig/init</TT
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>.</P
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><P
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>Alter the parameter <TT
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CLASS="LITERAL"
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>BOOTUP</TT
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> to use
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terminal-independent commands to write the
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<TT
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CLASS="COMPUTEROUTPUT"
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>OK</TT
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>,
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<TT
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CLASS="COMPUTEROUTPUT"
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>PASSED</TT
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> and
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<TT
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CLASS="COMPUTEROUTPUT"
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>FAILED</TT
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> messages. These messages
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will no longer appear in green, yellow or red. The comments in
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<TT
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CLASS="FILENAME"
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>/etc/sysconfig/init</TT
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> suggest that any value
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other than <TT
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CLASS="LITERAL"
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>color</TT
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> will do, but it seems that
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<TT
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CLASS="LITERAL"
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>BOOTUP</TT
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> must be set to
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<TT
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CLASS="LITERAL"
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>serial</TT
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>.</P
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><P
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>Alter the <TT
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CLASS="LITERAL"
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>PROMPT</TT
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> parameter to disallow
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interactive start up. Allowing an unauthenticated keystroke to stop
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system services is not robust against line noise and allows anyone
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that dials in during system boot to deny services.</P
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><DIV
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CLASS="FIGURE"
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><A
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NAME="MISC-CONFIGURE-RHL-ETC-SYSLINUX-INIT"
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></A
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><P
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><B
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>Figure 7-14. Alterations to <TT
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CLASS="FILENAME"
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>/etc/sysconfig/init</TT
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> for
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<SPAN
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CLASS="PRODUCTNAME"
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>Red Hat Linux</SPAN
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></B
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></P
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><TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="PROGRAMLISTING"
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>BOOTUP=serial
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PROMPT=no</PRE
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></FONT
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></TD
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></TR
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></TABLE
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></DIV
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><P
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><SPAN
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CLASS="PRODUCTNAME"
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>Red Hat Linux</SPAN
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> runs a hardware
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discoverer, named <SPAN
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CLASS="APPLICATION"
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>kudzu</SPAN
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>. When
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attempting to identify a serial port
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<SPAN
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CLASS="APPLICATION"
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>Kudzu</SPAN
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> resets the serial port. This
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stops the serial console. <SPAN
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CLASS="APPLICATION"
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>Kudzu</SPAN
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> is
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configured from the file
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<TT
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CLASS="FILENAME"
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>/etc/sysconfig/kudzu</TT
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>.</P
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><P
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><SPAN
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CLASS="APPLICATION"
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>Kudzu</SPAN
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> can be prevented from
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resetting hardware by setting the configuration parameter
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<TT
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CLASS="LITERAL"
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>SAFE</TT
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> to <TT
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CLASS="LITERAL"
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>yes</TT
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>.</P
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><DIV
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CLASS="FIGURE"
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><A
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NAME="MISC-CONFIGURE-RHL-ETC-SYSLINUX-KUDZU"
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></A
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><P
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><B
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>Figure 7-15. Alterations to <TT
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CLASS="FILENAME"
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>/etc/sysconfig/kudzu</TT
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>
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for <SPAN
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CLASS="PRODUCTNAME"
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>Red Hat Linux</SPAN
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></B
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></P
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><TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="PROGRAMLISTING"
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>SAFE=yes</PRE
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></FONT
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></TD
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></TR
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></TABLE
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="misc-pam.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
|
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><TD
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WIDTH="34%"
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ALIGN="center"
|
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VALIGN="top"
|
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
|
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="test.html"
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ACCESSKEY="N"
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>Next</A
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></TD
|
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></TR
|
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><TR
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><TD
|
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WIDTH="33%"
|
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ALIGN="left"
|
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VALIGN="top"
|
|
>Configure Pluggable Authentication Modules</TD
|
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><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
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VALIGN="top"
|
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><A
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|
HREF="misc.html"
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ACCESSKEY="U"
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>Up</A
|
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></TD
|
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><TD
|
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WIDTH="33%"
|
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ALIGN="right"
|
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VALIGN="top"
|
|
>Reboot and test</TD
|
|
></TR
|
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></TABLE
|
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></DIV
|
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></BODY
|
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></HTML
|
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> |