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	<title>深度VPS &#187; IP反向解析</title>
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		<title>如何检测邮件服务器 IP反向解析是否生效？</title>
		<link>http://www.deepvps.com/how-to-detection-effect-mail-server-ip-reverse-dns.html</link>
		<comments>http://www.deepvps.com/how-to-detection-effect-mail-server-ip-reverse-dns.html#comments</comments>
		<pubDate>Fri, 04 Mar 2011 15:33:50 +0000</pubDate>
		<dc:creator>deepvps</dc:creator>
				<category><![CDATA[VPS管理维护]]></category>
		<category><![CDATA[IP反向解析]]></category>
		<category><![CDATA[检测]]></category>
		<category><![CDATA[生效]]></category>
		<category><![CDATA[邮件服务器]]></category>

		<guid isPermaLink="false">http://www.deepvps.com/?p=738</guid>
		<description><![CDATA[前面文章deepvps介绍过了如何做IP反向解析，详情点这里。那么，IP反向解析是否生效呢？下面介绍2种比较简单的方法：
1，ping -a 173.212.248.98 如果能ping出一个域名，就说明反解析成功了。
反解析IP范例：
ping -a 173.252.197.79

Pinging deepvps.com [173.252.197.79] with 32 bytes of data:

Reply from 173.252.197.79: bytes=32 time=238ms TTL=47
Reply from 173.252.197.79: bytes=32 time=233ms TTL=47
Reply from 173.252.197.79: bytes=32 time=232ms TTL=47
Reply from 173.252.197.79: bytes=32 time=238ms TTL=47

Ping statistics for 173.252.197.79:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = [...]]]></description>
			<content:encoded><![CDATA[<p>前面文章deepvps介绍过了如何做IP反向解析，<a href="http://www.deepvps.com/enable-rdns-to-avoid-being-mistaken-for-spam-e-mail.html" target="_blank">详情点这里</a>。那么，IP反向解析是否生效呢？下面介绍2种比较简单的方法：</p>
<p>1，ping -a 173.212.248.98 如果能ping出一个域名，就说明反解析成功了。</p>
<p>反解析IP范例：</p>
<pre>ping -a 173.252.197.79

Pinging deepvps.com [173.252.197.79] with 32 bytes of data:

Reply from 173.252.197.79: bytes=32 time=238ms TTL=47
Reply from 173.252.197.79: bytes=32 time=233ms TTL=47
Reply from 173.252.197.79: bytes=32 time=232ms TTL=47
Reply from 173.252.197.79: bytes=32 time=238ms TTL=47

Ping statistics for 173.252.197.79:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 232ms, Maximum = 238ms, Average = 235ms</pre>
<p><span id="more-738"></span><br />
2，nslookup检测IP反解析。</p>
<p>在CMD命令提示符下，输入 nslookup 回车，然后输入 ip ，如果有Name，那么就说明反解析成功。</p>
<pre>nslookup
Default Server:  google-public-dns-a.google.com
Address:  8.8.8.8

&gt; 173.252.197.79
Server:  google-public-dns-a.google.com
Address:  8.8.8.8

Name:    deepvps.com
Address:  173.252.197.79</pre>
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