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Re: Why is FQDN not found?



On Fri, Jul 27, 2012 at 8:06 AM, Kent West <westk@acu.edu> wrote:
> On 07/27/2012 09:57 AM, Kelly Clowers wrote:
>>
>> On Fri, Jul 27, 2012 at 7:45 AM, Kent West<westk@acu.edu>  wrote:
>>>
>>> Why can I ping the hostname, but not the fully-qualified domain name of a
>>> box?
>>>
>>>
>>> westk@westek:~$ ping k1000
>>> PING k1000.acu.local (150.252.149.1) 56(84) bytes of data.
>>> 64 bytes from 150.252.149.1: icmp_req=1 ttl=62 time=0.128 ms
>>> ^C64 bytes from 150.252.149.1: icmp_req=2 ttl=62 time=0.138 ms
>>>
>>> --- k1000.acu.local ping statistics ---
>>> 2 packets transmitted, 2 received, 0% packet loss, time 5002ms
>>> rtt min/avg/max/mdev = 0.128/0.133/0.138/0.005 ms
>>>
>>>
>>> westk@westek:~$ ping k1000.acu.local
>>> ping: unknown host k1000.acu.local
>>>
>>>
>>> westk@westek:~$ cat /etc/resolv.conf
>>> # Generated by NetworkManager
>>> domain acu.local
>>> search acu.local
>>> nameserver 150.252.134.8
>>> nameserver 150.252.134.159
>>> nameserver 150.252.228.8
>>> nameserver 150.252.135.4
>>>
>>>
>>> westk@westek:~$ nslookup k1000
>>> Server:         150.252.134.8
>>> Address:        150.252.134.8#53
>>>
>>> Name:   k1000.acu.local
>>> Address: 150.252.149.1
>>>
>>> westk@westek:~$ nslookup k1000.acu.local
>>> Server:         150.252.134.8
>>> Address:        150.252.134.8#53
>>>
>>> Name:   k1000.acu.local
>>> Address: 150.252.149.1
>>>
>>>
>>> I googled for this problem and found instructions to change 1 to 0 in the
>>> /etc/default/avahi-daemon file (after which I did a "sudo
>>> /etc/init.d/avahi-daemon restart" command), but that didn't solve the
>>> problem (so I put the /etc/default/avahi-daemon file back to the way it
>>> was).
>>>
>>> I have a MacBook running an up-to-date OS/X, and it can ping both the
>>> hostname and the FQDN (and it's resolv.conf file looks pretty much the
>>> same
>>> as the above), so it seems to be a problem in this Debian box (westek).
>>
>> Odd. What does your routing table look like ("ip route" or "route")?
>>
>> I don't see why it should matter but have you tried "ping
>> k1000.acu.local." (trailing dot)
>>
>
> westk@westek:~$ ping k1000.acu.local.
> ping: unknown host k1000.acu.local.
>
> westk@westek:~$ ip route
> default via 150.252.16.1 dev eth0  proto static
> 150.252.16.0/21 dev eth0  proto kernel  scope link  src 150.252.17.3
>
> westk@westek:~$ sudo route
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> default         150.252.16.1    0.0.0.0         UG    0      0        0 eth0
> 150.252.16.0    *               255.255.248.0   U     0      0        0 eth0

Hm, route looks normal...


>> Oh, and are you running nscd (name server cache daemon) or similar on
>> the box that cannot ping?
>> Just throwing stuff out there.
>
>
>
> westk@westek:~$ ps ax | grep nscd
> 20075 pts/2 S+ 0:00 grep nscd
>
>
> I'm not sure what would similar. So do I need to "aptitude install nscd"?

Oh, sorry, you don't need it, I was thinking it might possibly have
cached some bad info somehow which messed up ping, but nslookup was
going to the server and avoiding it. Clearly not the case if it wasn't
installed.

Sorry, don't have a lot of other ideas.

Cheers,
Kelly Clowers


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