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	<title>FAQ Book &#187; Tcpping</title>
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		<title>Install Tcpping on Linux</title>
		<link>https://blog.faq-book.com/?p=7393</link>
		<comments>https://blog.faq-book.com/?p=7393#comments</comments>
		<pubDate>Mon, 26 May 2014 02:56:13 +0000</pubDate>
		<dc:creator>Derek</dc:creator>
				<category><![CDATA[Tcpping]]></category>
		<category><![CDATA[Install Tcpping]]></category>
		<category><![CDATA[Install Tcpping on Linux]]></category>
		<category><![CDATA[Linux]]></category>

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<p><span style="color: #000080;font-size: 18px"><strong>Tcpping </strong><strong>介紹</strong></span></p>
<p>測試網路延遲最常用方法是使用ping工具，它使用ICMP協定。在某些情況下ICMP是被防火牆阻擋，這使得Ping在這情況下是無法使用的。此時為了能夠繼續監控的話，就必需使用TCP / UDP的方式，TCPPING為更容易繞過普通的防火牆規則的第3層測試工具。</p>
<p>這樣的一個第3層的測試工具TCPPING 。為了測量延遲， TCPPING採取所謂的半開連接技術，基於TCP三次握手的優勢。也就是說，它發送一個TCP SYN包的端口號（默認為80 ）遠程主機。如果遠程主機正在偵聽的端口，它會響應的TCP ACK數據包。否則，它會響應的TCP RST包。無論哪種方式， TCPPING可以測量往返時間遠程主機（ RTT）的延遲，通過定時傳出SYN數據包和輸入的ACK （或RST ）數據包。</p>
<p>相同的半開連接技術已經實現了tcptraceroute工具。所以TCPPING只是依靠tcptraceroute執行延遲測量。</p>
<p>為了TCPPING安裝在Linux上，你首先需要安裝tcptraceroute ，然後從下載TCPPING腳本。</p>
<p><strong> </strong></p>
<p><span style="color: #000080;font-size: 18px"><strong>Tcptraceroute</strong><strong>安裝</strong></span></p><pre class="crayon-plain-tag">[root@localhost ~]#  yum -y install tcptraceroute</pre><p>&nbsp;</p>
<p><span style="color: #000080;font-size: 18px"><strong>Tcpping</strong><strong>安裝</strong></span></p><pre class="crayon-plain-tag">[root@localhost ~]#  cd /usr/bin
[root@localhost ~]#  wget http://download1.faq-book.com/file/Linux/tcpping/tcpping
[root@localhost ~]#  chmod 755 tcpping</pre><p><a href="https://blog.faq-book.com/?p=7393#more-7393" class="more-link">繼續閱讀 &raquo;</a></p>

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