64 lines
3.0 KiB
HTML
64 lines
3.0 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<HTML>
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<HEAD>
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<title>Mail for the Home Network--POP3 LG #45</title>
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</HEAD>
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<BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#0000AF"
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ALINK="#FF0000">
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<H4>
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"Linux Gazette...<I>making Linux just a little more fun!</I>"
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</H4>
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<P> <HR> <P>
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<center>
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<H4><font color="maroon">Mail for the Home Network</font></H4>
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<H1><font color="maroon">Pop3</font></H1>
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<H4>By <a href="mailto:jpollman@bigfoot.com">JC Pollman</a>
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and <a href="mailto:bill.mote@bigfoot.com">Bill Mote</a></H4></center>
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</center>
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<P> <HR> <P>
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<p>Setting up a pop3 server is a very easy operation. First setup
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the pop3 server and then setup the accounts.
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<p>Edit /etc/services and make sure these two lines are in there and remove
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any # in front of them:
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<p><tt>pop-3 110/tcp # PostOffice V.3</tt>
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<br><tt>pop 110/tcp # PostOffice V.3</tt>
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<p>Edit /etc/inetd.conf and remove the # in front of this line:
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<p><tt>pop-3 stream tcp nowait
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root /usr/sbin/tcpd ipop3d</tt>
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<p>and then restart inetd by typing:
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<blockquote><i>killall -HUP inetd [Enter]</i></blockquote>
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Your pop3 server is now fully up and operational. Nice and simple.
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<p>It will serve mail to any user that has an account on your server using
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the user's login name and password. If you have users who will be
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using the mail server only for mail, for security reasons, you should limit
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their access to the other services. To make the account unusable
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for log in, put a * in the password field of /etc/passwd and specifying
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a bogus shell - like /bin/false - in the last field of the password file
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entry. They will still be able to get and send mail, as well as use
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the modem if masquerading is setup, but they will not be able to telnet,
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ftp, or run remote programs on the mail server itself.
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<p>Many of you might want to use imap instead of pop3. For the purposes
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of this article, set up pop3 first, and once everything is working, you
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can try imap. Although imap gives serious advantages to the user, particularly
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if you move between operating systems and mail clients, we have strong
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reservations about. Almost every time someone has attempted to crack into
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my server, imap was tested. There were some security concerns about earlier
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versions of imap which are now fixed, so we would very strongly urge you
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to run only the latest version if you intend to implement it on your server.
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<P> <hr> <P>
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<center><H5>Copyright © 1999, JC Pollman and Bill Mote <BR>
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Published in Issue 45 of <i>Linux Gazette</i>, September 1999</H5></center>
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