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	<title>broadcast &#8211; richliu&#039;s blog</title>
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		<title>Ubuntu Disable Broadcast Packet</title>
		<link>https://richliu.com/2012/05/08/1220/ubuntu-disable-broadcast-packet/</link>
					<comments>https://richliu.com/2012/05/08/1220/ubuntu-disable-broadcast-packet/#respond</comments>
		
		<dc:creator><![CDATA[richliu]]></dc:creator>
		<pubDate>Tue, 08 May 2012 03:33:51 +0000</pubDate>
				<category><![CDATA[Ubuntu]]></category>
		<category><![CDATA[17500]]></category>
		<category><![CDATA[broadcast]]></category>
		<category><![CDATA[dropbox]]></category>
		<category><![CDATA[samba]]></category>
		<category><![CDATA[ubuntu]]></category>
		<category><![CDATA[udp]]></category>
		<guid isPermaLink="false">https://richliu.com/?p=1220</guid>

					<description><![CDATA[<p>一直以來都錯怪 Ubuntu 了&#8230; 一般狀況之下, 我都以為 Ubuntu broadcast 是 [&#8230;]</p>
<p>The post <a rel="nofollow" href="https://richliu.com/2012/05/08/1220/ubuntu-disable-broadcast-packet/">Ubuntu Disable Broadcast Packet</a> appeared first on <a rel="nofollow" href="https://richliu.com">richliu&#039;s blog</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>一直以來都錯怪 Ubuntu 了&#8230;</p>
<p>一般狀況之下, 我都以為 Ubuntu broadcast 是不能關的(不知道怎麼關),<br />
今天花了一點時間才發現, 人不是 Ubuntu 殺的.</p>
<p><span id="more-1220"></span></p>
<p>首先是這個 UDP Port 17500 的 Packet.<br />
這其實是 Dropbox Local Sync 的 Packet, 只要關掉 Dropbox local sync 的 function 就可以關掉這種封包.</p>
<p><a title="UDP17500 by richliu(有錢劉), on Flickr" href="http://www.flickr.com/photos/richliu_tw/7155729976/" target="_blank" rel="noopener"><img fetchpriority="high" decoding="async" src="http://farm9.staticflickr.com/8141/7155729976_3c9827553d.jpg" alt="UDP17500" width="500" height="193" /></a></p>
<p>另一種是 SAMBA Broadcast 封包, 像這樣.<br />
<a title="SAMBA4 by richliu(有錢劉), on Flickr" href="http://www.flickr.com/photos/richliu_tw/7155755816/" target="_blank" rel="noopener"><img decoding="async" src="http://farm8.staticflickr.com/7225/7155755816_38d2610b76.jpg" alt="SAMBA4" width="500" height="213" /></a></p>
<p>這個我是關掉 Samba 的 Interface 和 LAN manager function<br />
編輯檔案 /etc/samba/smb.conf, 在 [Global] 區域內加上</p>
<p>[TEXT]<br />
[Global]<br />
lm announce = no<br />
interfaces = eth0 eth2 -> 拿掉你不想要 broadcast 的 interface.<br />
[/TEXT]</p>
<p>如果不想要執行 Samba , 可以試試看用指令<br />
[BASH]<br />
# service samba stop<br />
or<br />
# service samba4 stop<br />
[/BASH]<br />
讓 Samba 停下來, 不過在我的 ubuntu 8.04 內是停不下來的&#8230;.</p>
<p>The post <a rel="nofollow" href="https://richliu.com/2012/05/08/1220/ubuntu-disable-broadcast-packet/">Ubuntu Disable Broadcast Packet</a> appeared first on <a rel="nofollow" href="https://richliu.com">richliu&#039;s blog</a>.</p>
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