[mdlug] Strange Network Issue

Carl T. Miller carl at carltm.com
Sat Oct 18 17:26:53 EDT 2014


The first thing I would check is the routes on each of
these hosts.  Can you post the output of "route -n"?

c


R KANNAN wrote:
> Hello
>
> I wasencountering a strange issue on my desktop (Mythbuntu 12.04) that
> I do not see on another laptop (Mythbuntu 12.04)  on the same network.
> Both are connecting to the same router albeit differently (wired vs.
> wired) and using the same primary and secondary DNS. Some of the names
> are not resolved since yesterday
>
> kannan at HP-DVR:~$ nslookup www.nfl.com
> Server:        127.0.0.1
> Address:    127.0.0.1#53
>
> ** server can't find www.nfl.com: SERVFAIL
>
> kannan at OldLaptop:~$ nslookup www.nfl.com
> Server:        127.0.0.1
> Address:    127.0.0.1#53
>
> Non-authoritative answer:
> www.nfl.com    canonical name = www.nfl.com.edgesuite.net.
> www.nfl.com.edgesuite.net    canonical name = a989.g.akamai.net.
> a989.g.akamai.net    canonical name =
> user-att-23-119-216-0.a989.g.akamai.net.
> Name:    user-att-23-119-216-0.a989.g.akamai.net
> Address: 23.77.237.48
> Name:    user-att-23-119-216-0.a989.g.akamai.net
> Address: 23.77.236.168
>
> Then I tried pinging the gateway (my router) from my desktop and it
> failed.. But I could ping other machines within my network. This
> explained why I could not go outside of my networ.
>
> I wonder what changed. BTW, I installed WireShock on my computer and
> had to change some file settings to make it work for non-root. I am
> not sure if that had any effect.
>
> Any ideas?
>
> Thanks for any help
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