121 lines
5.4 KiB
HTML
121 lines
5.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Linux Shadow Password HOWTO</TITLE>
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<LINK HREF="Shadow-Password-HOWTO-1.html" REL=next>
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</HEAD>
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<BODY>
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<A HREF="Shadow-Password-HOWTO-1.html">Next</A>
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Previous
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Contents
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<HR>
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<H1>Linux Shadow Password HOWTO</H1>
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<H2>Michael H. Jackson, <CODE>mhjack@tscnet.com</CODE></H2>v1.3, 3 April 1996
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<P><HR>
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<EM>This document aims to describe how to obtain, install, and configure the Linux
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password <EM>Shadow Suite</EM>. It also discusses obtaining, and re]installing other software and network daemons that require access to user
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passwords. This other software is not actually part of the Shadow Suite, but
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these programs will need to be recompiled to support the <EM>Shadow
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Suite</EM>. This document also contains a programming example for adding
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shadow support to a program. Answers to some of the more frequently asked
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questions are included near the end of this document.</EM>
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<HR>
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<P>
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<H2><A NAME="toc1">1.</A> <A HREF="Shadow-Password-HOWTO-1.html">Introduction.</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-1.html#ss1.1">1.1 Changes from the previous release.</A>
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<LI><A HREF="Shadow-Password-HOWTO-1.html#ss1.2">1.2 New versions of this document.</A>
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<LI><A HREF="Shadow-Password-HOWTO-1.html#ss1.3">1.3 Feedback.</A>
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</UL>
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<P>
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<H2><A NAME="toc2">2.</A> <A HREF="Shadow-Password-HOWTO-2.html">Why shadow your passwd file?</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-2.html#ss2.1">2.1 Why you might NOT want to shadow your passwd file.</A>
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<LI><A HREF="Shadow-Password-HOWTO-2.html#ss2.2">2.2 Format of the /etc/passwd file</A>
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<LI><A HREF="Shadow-Password-HOWTO-2.html#ss2.3">2.3 Format of the shadow file</A>
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<LI><A HREF="Shadow-Password-HOWTO-2.html#ss2.4">2.4 Review of crypt(3).</A>
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</UL>
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<P>
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<H2><A NAME="toc3">3.</A> <A HREF="Shadow-Password-HOWTO-3.html">Getting the Shadow Suite.</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-3.html#ss3.1">3.1 History of the Shadow Suite for Linux</A>
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<LI><A HREF="Shadow-Password-HOWTO-3.html#ss3.2">3.2 Where to get the Shadow Suite.</A>
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<LI><A HREF="Shadow-Password-HOWTO-3.html#ss3.3">3.3 What is included with the Shadow Suite.</A>
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</UL>
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<P>
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<H2><A NAME="toc4">4.</A> <A HREF="Shadow-Password-HOWTO-4.html">Compiling the programs.</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-4.html#ss4.1">4.1 Unpacking the archive.</A>
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<LI><A HREF="Shadow-Password-HOWTO-4.html#ss4.2">4.2 Configuring with the config.h file</A>
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<LI><A HREF="Shadow-Password-HOWTO-4.html#ss4.3">4.3 Making backup copies of your original programs.</A>
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<LI><A HREF="Shadow-Password-HOWTO-4.html#ss4.4">4.4 Running make</A>
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</UL>
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<P>
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<H2><A NAME="toc5">5.</A> <A HREF="Shadow-Password-HOWTO-5.html">Installing</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-5.html#ss5.1">5.1 Have a boot disk handy in case you break anything.</A>
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<LI><A HREF="Shadow-Password-HOWTO-5.html#ss5.2">5.2 Removing duplicate man pages</A>
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<LI><A HREF="Shadow-Password-HOWTO-5.html#ss5.3">5.3 Running make install</A>
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<LI><A HREF="Shadow-Password-HOWTO-5.html#ss5.4">5.4 Running pwconv</A>
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<LI><A HREF="Shadow-Password-HOWTO-5.html#ss5.5">5.5 Renaming npasswd and nshadow</A>
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</UL>
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<P>
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<H2><A NAME="toc6">6.</A> <A HREF="Shadow-Password-HOWTO-6.html">Other programs you may need to upgrade or patch</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.1">6.1 Slackware adduser program</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.2">6.2 The wu_ftpd Server</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.3">6.3 Standard ftpd</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.4">6.4 pop3d (Post Office Protocol 3)</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.5">6.5 xlock</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.6">6.6 xdm</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.7">6.7 sudo</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.8">6.8 imapd (E-Mail pine package])</A>
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<LI><A HREF="Shadow-Password-HOWTO-6.html#ss6.9">6.9 pppd (Point-to-Point Protocol Server)</A>
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<P>
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<H2><A NAME="toc7">7.</A> <A HREF="Shadow-Password-HOWTO-7.html">Putting the Shadow Suite to use.</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-7.html#ss7.1">7.1 Adding, Modifying, and deleting users</A>
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<LI><A HREF="Shadow-Password-HOWTO-7.html#ss7.2">7.2 The passwd command and passwd aging.</A>
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<LI><A HREF="Shadow-Password-HOWTO-7.html#ss7.3">7.3 The login.defs file.</A>
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<LI><A HREF="Shadow-Password-HOWTO-7.html#ss7.4">7.4 Group passwords.</A>
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<LI><A HREF="Shadow-Password-HOWTO-7.html#ss7.5">7.5 Consistency checking programs</A>
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<LI><A HREF="Shadow-Password-HOWTO-7.html#ss7.6">7.6 Dial-up passwords.</A>
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<P>
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<H2><A NAME="toc8">8.</A> <A HREF="Shadow-Password-HOWTO-8.html">Adding shadow support to a C program</A></H2>
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<UL>
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<LI><A HREF="Shadow-Password-HOWTO-8.html#ss8.1">8.1 Header files</A>
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<LI><A HREF="Shadow-Password-HOWTO-8.html#ss8.2">8.2 libshadow.a library</A>
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<LI><A HREF="Shadow-Password-HOWTO-8.html#ss8.3">8.3 Shadow Structure</A>
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<LI><A HREF="Shadow-Password-HOWTO-8.html#ss8.4">8.4 Shadow Functions</A>
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<LI><A HREF="Shadow-Password-HOWTO-8.html#ss8.5">8.5 Example</A>
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<P>
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<H2><A NAME="toc9">9.</A> <A HREF="Shadow-Password-HOWTO-9.html">Frequently Asked Questions.</A></H2>
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<P>
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<H2><A NAME="toc10">10.</A> <A HREF="Shadow-Password-HOWTO-10.html">Copyright Message.</A></H2>
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<P>
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<H2><A NAME="toc11">11.</A> <A HREF="Shadow-Password-HOWTO-11.html">Miscellaneous and Acknowledgments.</A></H2>
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</PHR>
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<H3></H3>
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<HR>
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