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On 09/24/2012 07:59 AM, Chris Gebhardt - VIRTBIZ Internet wrote:
<blockquote cite="mid:50605919.8040604@virtbiz.com" type="cite">
<pre wrap="">Here's a neat tip. If you are running an IPv6-enabled network, your
5108R server may decide to pick up an IPv6 IP address on its own via
auto-configuration. Sendmail may then use the IPv6 address to connect
to other SMTP servers. If you have not configured a PTR for that IPv6
address, then the mail sent via IPv6 hosts will tend to bounce as it has
no reverse DNS.
We haven't seen this behavior on 5106R.
Just thought I'd pass it along. #LFMF
</pre>
</blockquote>
Yep some of mine have it.<br>
[root@mail ~]# ifconfig<br>
eth0 Link encap:Ethernet HWaddr D6:F7:C7:CC:13:6B <br>
inet addr:1.2.3.4 Bcast:1.2.2.4 Mask:255.255.255.0<br>
<b>inet6 addr: 1234::1234:1234:1234:1234/64</b>
Scope:Link<br>
<br>
<br>
googling found this, I have used this previously for a similar issue.<br>
<br>
<code># vi /etc/sysconfig/network</code><br>
<font color="#000000"> <small>
<span style="color: #000099;">NETWORKING_IPV6</span>=<span
style="color: #660066;">no</span>
<span style="color: #000099;"><br>
IPV6INIT</span>=<span style="color: #660066;">no</span>
</small></font><br>
Save and close the file. <br>
Restart networking service<br>
<code># service network restart<br>
# rmmod ipv6</code><br>
<br>
<div class="moz-signature">-- <br>
Gerald </div>
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