mirror of
https://github.com/Zeckmathederg/glfs.git
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96 lines
4.8 KiB
XML
96 lines
4.8 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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]>
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<chapter id="postlfs-security">
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<?dbhtml filename="security.html"?>
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<title>Security</title>
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<para>
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Security takes many forms in a computing environment. After some
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initial discussion, this chapter
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gives examples of three different types of security: access, prevention
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and detection.
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</para>
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<para>
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Access for users is usually handled by <command>login</command> or an
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application designed to handle the login function. In this chapter, we show
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how to enhance <command>login</command> by setting policies with
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<application>PAM</application> modules. Access via networks can also be
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secured by policies set by <application>iptables</application>, commonly
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referred to as a firewall. The Network Security Services (NSS) and
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Netscape Portable Runtime (NSPR) libraries can be installed and shared
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among the many applications requiring them. For applications that don't
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offer the best security, you can use the
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<application>Stunnel</application> package to wrap an application daemon
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inside an SSL tunnel.
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</para>
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<para>
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Prevention of breaches, like a trojan, are assisted by applications like
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<application>GnuPG</application>, specifically the ability to confirm
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signed packages, which recognizes modifications of the tarball
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after the packager creates it.
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</para>
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<para>
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Finally, we touch on detection with a package that stores "signatures"
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of critical files (defined by the administrator) and then regenerates those
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"signatures" and compares for files that have been changed.
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</para>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="vulnerabilities.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="make-ca.xml"/>
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<!-- sysv only -->
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<!--<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="consolekit.xml"/>-->
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="cracklib.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="cryptsetup.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="cyrus-sasl.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gnupg2.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gnutls.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gpgme.xml"/>
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<!-- archive
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="haveged.xml"/>
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-->
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<!-- Leave in alphabetical order of now -->
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="iptables.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="firewalling.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="libcap.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="linux-pam.xml"/>
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<!-- systemd only -->
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="liboauth.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="libpwquality.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="mitkrb.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="nettle.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="nss.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="openssh.xml"/>
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<!-- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="openssl.xml"/> -->
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<!-- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="openssl10.xml"/> -->
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="p11-kit.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="polkit.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="polkit-gnome.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="shadow.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="ssh-askpass.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="stunnel.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="sudo.xml"/>
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<!-- comment out until shadow really abandon su -->
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<!--xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="util-linux.xml"/-->
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="tripwire.xml"/>
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<!-- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="volume_key.xml"/>-->
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<!-- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="firewalling.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="iptables.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="nftables.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="firewalld.xml"/>-->
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</chapter>
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