[CentOS] Help with thread Centos 6.4 won't reboot on install

On 3/27/2013 3:57 PM, Robert Benjamin wrote:
> On 3/27/2013 3:30 PM, m.roth at 5-cent.us wrote:
>> Robert Benjamin wrote:
>>> On 3/27/2013 1:52 PM, Les Mikesell wrote:
>>>> On Wed, Mar 27, 2013 at 12:32 PM, Robert Benjamin <benjie1 at cox.net>
>>>> wrote:
>>>>>> The reason I think this is the problem is the post where you said you
>>>>>> could log in after a very long delay.  About the only thing that can
>>>>>> cause a very long delay is the system waiting for DNS responses on
>> <snip>
>>>> The IP address looks like what you would get from a typical home
>>>> router, so that's probably OK.  A quick test for DNS would be the
>>>> 'dig' command.  If it quickly returns a screenfull of  root
>>>> nameservers and addresses, then DNS is not the problem.    If it
>>>> doesn't, then check what you have in your /etc/resolv.conf file.
>>>>
>>>        dig returned  a lot of root nameservers instantly.
>> Nasty thought: in one window, run tcpdump -A port 50, and in another, try
>> looking something up, say, nytimes.com, something obvious. See what's
>> going and coming.
>>
>>         mark
> Did you mean ping nytimes.com ?
     tcpdump -A port 50 output is tcpdump: verbose output suppressed, 
use -v or -w for all protocol decode listening on eth0, link-type EN10MB 
(Ethernet), capturing size 65535 bytes, and a blinking cursor which I 
left for 20 min and re-started, tried with  -v  got listening on eth0, 
type EN10MB (Ethernet), capture size 65535 bytes. re-started and meant 
to use  -w but forgot and just typed tcpdump. That gave tons of output 
which I can't fathom  and let it go for 30 minutes. Re-started one more 
time and pinged nytimes.com  That returned screenful  of data packets 
all ok. Then shutdown  til tomorrow.
             Bob
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