/usr/share/help/vi/gnome-help/net-macaddress.page is in gnome-user-docs-vi 3.28.1-0ubuntu1.
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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="tip" id="net-macaddress" xml:lang="vi">
<info>
<link type="guide" xref="net-general"/>
<revision pkgversion="3.7.1" version="0.2" date="2012-11-16" status="outdated"/>
<revision pkgversion="3.10" date="2013-10-30" status="review"/>
<revision pkgversion="3.18" date="2015-09-28" status="final"/>
<credit type="author">
<name>Shaun McCance</name>
<email>shaunm@gnome.org</email>
</credit>
<credit type="author">
<name>Jim Campbell</name>
<email>jwcampbell@gmail.com</email>
</credit>
<credit type="editor">
<name>Michael Hill</name>
<email>mdhillca@gmail.com</email>
</credit>
<credit type="editor">
<name>Ekaterina Gerasimova</name>
<email>kittykat3756@gmail.com</email>
</credit>
<include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
<desc>Mã duy nhất gắn cho mỗi phần cứng mạng.</desc>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Nguyễn Thái Ngọc Duy</mal:name>
<mal:email>pclouds@gmail.com</mal:email>
<mal:years>2011-2012.</mal:years>
</mal:credit>
</info>
<title>Địa chỉ MAC là gì?</title>
<p><em>Địa chỉ MAC</em> là mã duy nhất được gán bởi nhà sản xuất cho từng phần cứng mạng (như cạc không dây hoặc cạc Ethernet). <em>MAC</em> viết tắt của <em>Media Access Control</em>, và mỗi mã là duy nhất cho một thiết bị.</p>
<p>Địa chỉ MAC là một bộ sáu cặp hai ký tự, cách nhau bằng dấu hai chấm. Ví dụ <code>00:1B:44:11:3A:B7</code> là một địa chỉ MAC.</p>
<p>Để xác định địa chỉ MAC của phần cứng mạng của bạn:</p>
<steps>
<item>
<p>Open the <gui xref="shell-introduction#activities">Activities</gui> overview and
start typing <gui>Network</gui>.</p>
</item>
<item>
<p>Click on <gui>Network</gui> to open the panel.</p>
</item>
<item>
<p>Choose which device, <gui>Wi-Fi</gui> or <gui>Wired</gui>, from
the left pane.</p>
<p>The MAC address for the wired device will be displayed as the
<gui>Hardware Address</gui> on the right.</p>
<p>Click the
<media its:translate="no" type="image" src="figures/emblem-system.png"><span its:translate="yes">settings</span></media>
button to see the MAC address for the wireless device displayed as the
<gui>Hardware Address</gui> in the <gui>Details</gui> panel.</p>
</item>
</steps>
<p>In practice, you may need to modify or “spoof” a MAC address. For example,
some internet service providers may require that a specific MAC address be
used to access their service. If the network card stops working, and you need
to swap a new card in, the service won’t work anymore. In such cases, you
would need to spoof the MAC address.</p>
</page>
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