On Fri, Dec 10, 2010 at 2:23 PM, Steve Clark <sclark@xxxxxxxxxxxxx> wrote:
> On 12/10/2010 10:40 AM, Tom H wrote:
> On Fri, Dec 10, 2010 at 8:43 AM, Steve Clark <sclark@xxxxxxxxxxxxx> wrote:
>>>
>>> I have a confusing problem. I have two centos 5,5 boxes. Both have
>>> sudo.i386 1.7.2p1-9.el5_5
>>> installed
>>>
>>> I am using the same sudoers file, but the one on box A keeps trying to do
>>> DNS lookups while the one on box B does not. How do I disable this DNS
>>> lookup?
>>
>> Do both hosts have their hostnames in "/etc/hosts"?
>>
>> Do both hosts have "hosts: files dns" in "/etc/nsswitch.conf"?
>
> I have resolved the problem as far why they behaved differently.
> Someone had put an entry in /etc/resolv.conf when normally we run our
> own nameserver at 127.0.0.1.
> Putting a hostname and address in the /etc/hosts also fixed the problem.
>
> But I still don't understand why it wants to do a DNS lookup when I don't
> have
> Defaults fqdn
> in the sudoers file.
A WAG: Since sudo rights are assigned on a box by box basis (unless
you use "ALL"), sudo has to check on which box you are running it.
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