DNS Testing 🔗 link

Hello -

In looking at the bb-hosts man page (DNS Server Test section), I see that 
the syntax is "dns=hostname" or "dns=TYPE:lookup"... Any way to make it look 
at a specific DNS server as well? ( i.e. dig @dnsserver hostname )

-- 
--==[ Bob Gordon ]==--

On Tue, Sep 13, 2005 at 03:57:28AM -0700, Bob Gordon wrote:

It will always test the DNS server upon which this dns query is defined.
E.g. you have two DNS server and you want to check if both of them can
resolve "www.kernel.org", so you put this in the bb-hosts file:

  10.0.0.1   dns1.foo.com # dns=a:www.kernel.org
  10.0.0.2   dns2.foo.com # dns=a:www.kernel.org

The first one sends the request to the dns1 server, the second request
goes to the dns2 server. Just like all of the other network tests.


Henrik

On Tue, 2005-09-13 at 03:57 -0700, Bob Gordon wrote:

That's what you are testing...  What an individual server is responding.

So, I might have:
0.0.0.0         ns1.example.com        # noconn
dig=SOA:example.com,SOA:example.net,SOA:example.org,SOA:example.us,TXT:example.com ssh
0.0.0.0         ns2.example.com        # noconn
dig=SOA:example.com,SOA:example.net,SOA:example.org,SOA:example.us,TXT:example.com                         ssh

So, here I am testing whether ns1.example.com can return the soa record
for all of these various domains, and the same for ns2...

-- 
Daniel J McDonald, CCIE # 2495, CNX, CISSP # 78281
Austin Energy

user-290ce4e24e19@xymon.invalid

On 9/13/05, Henrik Stoerner <user-ce4a2c883f75@xymon.invalid> wrote:

resolve "www.kernel.org <http://www.kernel.org>";, so you put this in the 
bb-hosts file:

10.0.0.1 <http://10.0.0.1>; dns1.foo.com <http://dns1.foo.com>; # dns=a:
www.kernel.org <http://www.kernel.org>;
10.0.0.2 <http://10.0.0.2>; dns2.foo.com <http://dns2.foo.com>; # dns=a:
www.kernel.org <http://www.kernel.org>;

Thanks -

I was looking at the man page at 3:30 in the morning.. Shows what lack of 
sleep will do.. :)

-- 
--==[ Bob Gordon ]==--

I have an internal resolving only DNS server.

dig @dns1.example.com www.google.com<http://www.google.com>;

Gives me a valid response.

dig @dns1.example.com dns1.example.com
Fails, since dns1.example.com is not a valid address on the internet.

Is it a requirement for dns1.example.com to be able to resolve it's own name?

I tried this in bb-hosts


0.0.0.0    dns1.example.com  # dns=ns:google.com

But Xymon gives me a red page stating that dns1.example.com service is unavailable.

Craig

On Wednesday 20 May 2009, Craig Cook wrote:

0.0.0.0    dns1.example.com  # dns=ns:google.com

Try:
0.0.0.0    dns1.example.com  # dns=google.com


Stef

Try:
0.0.0.0    dns1.example.com  # dns=google.com


Stef

No, that does not work either.

I suspect it an undocumented requirement that a DNS server can resolve it's own IP.  A resolving only DNS server that can not resolve it's own name is not common.

Craig

On Thursday 21 May 2009, Craig Cook wrote:

Try to enter the the ip and not 0.0.0.0.  I have the same setup, but with the 
ip entered in the bb-hosts file.


Stef