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Hi Steve,

standard bare metal WNs. This is no a VM problem.

cheers
alessandra

On 26/02/2020 11:25, sjones wrote:
> Hi Alessandra,
>
> What type of WN is doing it? When we last ran VAC (a while back now) I 
> seem to recall that we had a local squid cache on each WN, pointing 
> back to another single site squid that did the real work and hence 
> limited traffic further back, since it had a large cache. Could it be 
> that WNs at VAC sites go direct to CERN, ?
>
> Just asking...
>
> Ste
>
>
>
>
> On 2020-02-26 09:10, Alessandra Forti wrote:
>>> it seems there is a problem with the UK sites WNs accessing frontier
>>> squid. In particular Manchester, RAL, RALPP and Oxford the others
>>> too but they are behind a NAT and not as many nodes appear in the list.
>>>
>>>
>> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwlcg-squid-monitor.cern.ch%2Fawstats%2Fbin%2Fawstats.pl%3Fconfig%3Dcvmfsbproxy.cern.ch%26databasebreak%3Dday%26day%3D25&data=02%7C01%7C%7Cebdecf99190248c3600a08d7ba941a8f%7C569df091b01340e386eebd9cb9e25814%7C0%7C0%7C637183017572955219&sdata=tri9QzQT0sN%2BJAO1jlmf0X21X3yQ%2Bo%2BTdTnD%2BEVcZhM%3D&reserved=0 
>>
>>>
>>> you need to filter for ac.uk
>>>
>>> Can I ask what version of squid you are using and if you are using
>>> frontier squid or standard OS squid?
>>>
>>> Frontier changed the baseline from 3.5.28 to 4.10.1-1 two weeks ago
>>> which is not even available on centos8.
>>>
>
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