<div dir="ltr"><div><div><div>The DNS server is bind on RHEL 6.4 with CENTOS 6.5 updates.<br><br></div>Turning off IPV6 suddenly made the bad times go away.<br><br></div>I have been fighting a ghost all weekend and thought I had things fixed a number of times but they came back a couple of hours later. I'll take this as a good sign but won't start celebrating yet.<br>
<br>Why did that work and what was going on? How did you know this was the problem?<br><br></div><div>Was it intuition, prior experience or omniscience?<br><br></div>Matt<br><br></div><div class="gmail_extra"><br clear="all">
<div>---------<br><b style="color:rgb(51,102,102)">Matthew Campbell</b><br><font size="1">Storage Solution Consultant<br>Storage Design and Engineering<br></font><font face="Verdana" size="1"><br></font><b><span style="color:rgb(51,102,102)">Kaiser Permanente</span></b><br>
<font face="Verdana" size="1">IMG-Systems Integration</font><font size="1"><br>99 S. Oakland<br>Pasadena, CA 91101<br></font><br><font size="1"><a>626-564-7228</a> (office)<br></font><font face="Verdana" size="1"><a>8-338-7228</a> (tie-line)<br>
<a value="+18186918895">818-314-9897</a> (mobile phone)<br>Green Center 3-North, 031W29</font><font size="1"><br></font>---------<br><b><a style="color:rgb(51,102,102)" href="http://kp.org/thrive" target="_blank">kp.org/thrive</a></b><br>
</div>
<br><br><div class="gmail_quote">On Sun, Jan 26, 2014 at 11:34 PM, Mic Chow <span dir="ltr"><<a href="mailto:zen@netten.net" target="_blank">zen@netten.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Is your network running IPV6; if not
then disable it in the Windows box. What flavor is the DNS
server; Microsoft? <br><span class="HOEnZb"><font color="#888888">
<br>
Mic</font></span><div><div class="h5"><br>
<br>
On 01/26/2014 10:50 PM, Matthew Campbell wrote:<br>
</div></div></div><div><div class="h5">
<blockquote type="cite">
<div dir="ltr">
<div>
<div>Ok, I'm more than a little frustrated.<br>
<br>
</div>
I installed a new DHCP/DNS server Friday. I washed all my
Windows and can't do a thing with them:<br>
<br>
<b><span style="font-family:courier new,monospace">matt@Nala:201%
ipconfig /flushdns<br>
Windows IP Configuration<br>
Successfully flushed the DNS Resolver Cache.<br>
<br>
matt@Nala:202% nslookup aslan<br>
Server: <a href="http://senge.campbell.littlelionstudios.com" target="_blank">senge.campbell.littlelionstudios.com</a><br>
Address: 172.28.1.2<br>
Name: <a href="http://aslan.campbell.littlelionstudios.com" target="_blank">aslan.campbell.littlelionstudios.com</a><br>
Address: 172.28.2.100<br>
<br>
matt@Nala:203% ping aslan<br>
Pinging aslan [172.28.2.111] with 32 bytes of data:<br>
Reply from <a href="http://172.28.2.111" target="_blank">172.28.2.111</a>:
bytes=32 time<1ms TTL=64<br>
Reply from <a href="http://172.28.2.111" target="_blank">172.28.2.111</a>:
bytes=32 time<1ms TTL=64<br>
<br>
matt@Nala:204% <br>
<br>
</span></b><br>
</div>
WTF?!? The IP address changed in the cache between the two
calls or what? Of course things are not working. Any
suggestions on how to diagnose?<br>
<br>
<div><br>
Matt<br>
<br>
P.S. Here's another example:<br>
<br>
<b><span style="font-family:courier new,monospace">matt@Nala:204%
nslookup kiara<br>
Server: <a href="http://senge.campbell.littlelionstudios.com" target="_blank">senge.campbell.littlelionstudios.com</a><br>
Address: 172.28.1.2<br>
<br>
Name: <a href="http://kiara.campbell.littlelionstudios.com" target="_blank">kiara.campbell.littlelionstudios.com</a><br>
Address: 172.28.2.102<br>
<br>
matt@Nala:205% ssh kiara<br>
ssh: Could not resolve hostname kiara: hostname nor
servname provided, or not known<br>
<br>
matt@Nala:206% <br>
<br>
</span></b><br>
And here's the ipconfig:<br>
<br>
<b><span style="font-family:courier new,monospace">matt@Nala:206%
ipconfig /all<br>
Windows IP Configuration<br>
Host Name . . . . . . . . . . . . : Nala<br>
Primary Dns Suffix . . . . . . . : <br>
Node Type . . . . . . . . . . . . : Hybrid<br>
IP Routing Enabled. . . . . . . . : No<br>
WINS Proxy Enabled. . . . . . . . : No<br>
DNS Suffix Search List. . . . . . : <a href="http://campbell.littlelionstudios.com" target="_blank">campbell.littlelionstudios.com</a>
<a href="http://littlelionstudios.com" target="_blank">littlelionstudios.com</a><br>
<br>
Ethernet adapter Ethernet:<br>
Connection-specific DNS Suffix . : <a href="http://campbell.littlelionstudios.com" target="_blank">campbell.littlelionstudios.com</a><br>
Description . . . . . . . . . . . : Broadcom NetLink
(TM) Gigabit Ethernet<br>
Physical Address. . . . . . . . . : BC-5F-F4-4B-96-76<br>
DHCP Enabled. . . . . . . . . . . : Yes<br>
Autoconfiguration Enabled . . . . : Yes<br>
Link-local IPv6 Address . . . . . :
fe80::6c04:e86b:ac8e:4d78%12(Preferred) <br>
IPv4 Address. . . . . . . . . . . :
172.28.2.122(Preferred) <br>
Subnet Mask . . . . . . . . . . . : 255.255.0.0<br>
Lease Obtained. . . . . . . . . . : Sunday, January 26,
2014 10:43:04 PM<br>
Lease Expires . . . . . . . . . . : Monday, January 27,
2014 10:43:03 PM<br>
Default Gateway . . . . . . . . . : 172.28.0.1<br>
DHCP Server . . . . . . . . . . . : 172.28.1.2<br>
DHCPv6 IAID . . . . . . . . . . . : 264003572<br>
DHCPv6 Client DUID. . . . . . . . :
00-01-00-01-18-96-BE-84-BC-5F-F4-4B-96-76<br>
DNS Servers . . . . . . . . . . . : 172.28.1.2<br>
172.25.0.1<br>
8.8.8.8<br>
Primary WINS Server . . . . . . . : 172.28.1.2<br>
NetBIOS over Tcpip. . . . . . . . : Enabled<br>
<br>
Tunnel adapter <a href="http://isatap.campbell.littlelionstudios.com" target="_blank">isatap.campbell.littlelionstudios.com</a>:<br>
Media State . . . . . . . . . . . : Media disconnected<br>
Connection-specific DNS Suffix . : <a href="http://campbell.littlelionstudios.com" target="_blank">campbell.littlelionstudios.com</a><br>
Description . . . . . . . . . . . : Microsoft ISATAP
Adapter<br>
Physical Address. . . . . . . . . :
00-00-00-00-00-00-00-E0<br>
DHCP Enabled. . . . . . . . . . . : No<br>
Autoconfiguration Enabled . . . . : Yes<br>
<br>
Tunnel adapter Local Area Connection* 11:<br>
Connection-specific DNS Suffix . : <br>
Description . . . . . . . . . . . : Teredo Tunneling
Pseudo-Interface<br>
Physical Address. . . . . . . . . :
00-00-00-00-00-00-00-E0<br>
DHCP Enabled. . . . . . . . . . . : No<br>
Autoconfiguration Enabled . . . . : Yes<br>
IPv6 Address. . . . . . . . . . . :
2001:0:9d38:6ab8:cb6:220c:53e3:fd85(Preferred) <br>
Link-local IPv6 Address . . . . . :
fe80::cb6:220c:53e3:fd85%14(Preferred) <br>
Default Gateway . . . . . . . . . : ::<br>
NetBIOS over Tcpip. . . . . . . . : Disabled<br>
<br>
matt@Nala:205% <br>
</span></b><br>
</div>
<div>Thanks for any ideas on how to tackle this. The Linux
upgrade including rebuilding 2 rack-mount servers from parts,
OS installs, VM installs, App installs and configuration took
4 hours. I lost all day Saturday and all day Sunday to this
d*** windows quirk.<br>
<br>
</div>
<div>Matt<br>
<br>
</div>
</div>
</blockquote>
<br>
</div></div></div>
</blockquote></div><br></div>