📄 0410vsftpd.htm
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<span style="font-weight:bolder; color:#3333FF"><span class="text_head0">鸟哥的<span class="text_head_en">
Linux </span>私房菜</span></span><br />
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<span class="text_head0"><span class="text_head_en">vsFTPd </span>档案伺服器</span></a><br />
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<span class="text_history">最近更新日期∶2006/12/20</span>
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<table class="head1" summary="排版∶文章档头的说明"><tr><td class="head1">
在网际网路上面的传输协定当中， FTP (File Transfer Protocol) 可说是最古老的协定之一了！
早期还没有这么多好用的协定之前 (例如 SAMBA)，都是使用 FTP 来进行资料的传递的呢！另外，一般来说资料的传输以
FTP 这个协定来传送是相当的快速的，而且某些场合当中其实也相当的方便。不过，值得注意的是，使用 FTP
来传输时，其实是具有一定程度的『危险性』，因为资料在网际网路上面是完全没有受到保护的『明码』机制！
所以鸟哥不太建议大家使用这个伺服器的啦！尤其当你建置好了 FTP 之后，如果经常进行资料的传递，
对于您的网路频宽『真的有很大的损害』啊！不过，无论如何， FTP 仍然有其存在的必要！例如义守大学的 FTP
站就作的相当的棒啊！不过， FTP 伺服器的危险性挺高的，因此我们选择一个强调安全性的 vsftpd 软体来架设喔！
</td></tr></table><br />
<!-- 本文的连结区部分 -->
<div class=block1>
<span class="text_h1">
1. <a href="#before">本章的行前准备工作</a><br />
2. <a href="#theory">FTP 的资料连结原理</a><br />
<span class=text_h2>
2.1 <a href="#theory_function">FTP 功能简介</a><br />
2.2 <a href="#theory_port">FTP 的运作流程与使用到的埠口</a><br />
2.3 <a href="#theory_pasv">用户端选择被动式连线模式</a><br />
2.4 <a href="#theory_security">FTP 的安全性问题与替代方案</a><br />
2.5 <a href="#theory_who">开放什么身份的使用者登入</a><br />
</span>
3. <a href="#server">vsftpd 伺服器基础设定</a><br />
<span class=text_h2>
3.1 <a href="#server_before">为何使用 vsftpd ？</a><br />
3.2 <a href="#server_pkg">所需要的套件以及套件结构</a><br />
3.3 <a href="#server_vsftpd.conf">vsftpd.conf 设定值说明 </a><br />
3.4 <a href="#server_start">vsftpd 启动的模式</a><br />
3.5 <a href="#server_basic">CentOS 的 vsftpd 预设值</a><br />
3.6 <a href="#server_real">仅有实体用户登入的设定</a>∶<br />
<a href="#server_real_chroot">chroot 的使用</a>,
<a href="#server_real_chroot2">更严格的 chroot 环境</a>,<br />
<a href="#server_real_flow">限制下载频宽</a>,
<a href="#server_real_client">限制最大上线人数与同一 IP 的来源数</a>,<br />
<a href="#server_real_userlist">建立严格的可使用 FTP 的帐号列表</a>,<br />
3.7 <a href="#server_anon">仅有匿名登入的相关设定</a>∶<br />
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