update problem

[william drescher]

On 8/1/2012 5:53 AM, Colin Law wrote:
> On 1 August 2012 10:45, william drescher <william at techservsys.com> wrote:
>> when I try to update one of my 10.04 LTS systems I am getting:
>>
>> Err http://security.ubuntu.com lucid-security Release.gpg
>>    Could not resolve 'security.ubuntu.com'
>>
>> and each additional package fails in the same way.
>>
>> another system at a different location updates fine.
>>
>> Suggestions ?
>
> Try again in a few hours, it may be a temporary issue with your Domain
> Name Server.
>
> Colin
>
I can ping from my router so DNS is ok.
I checked /etc/resolv.conf and found out of date nameserver 
addresses (my isp changed them recently).
I updated resolv.conf without benefit.

do I need to restart the resolver ? If so, how ?

bill