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Hi all,

  that's a client side config issue, not server side.

Those earlier versions of XTNetFile only allow/deny connections in the 
base of a pure equality of the domains.

The client config fix you made setting the variable

Root.XTNetFileAllowWanConnect

disables this checking at the client side, but only for the connections, 
not for the redirection destinations. If you have a redirector node, 
this one will obviously redirect the incoming connections to other 
hosts. To fix that also, you need to set to a nonzero value also the var

Root.XTNetFileAllowWanRedirect

I also suggest you to put these variable settings in the KanAccess file, 
not in the .rootrc one.

Fabrizio



Stephen J. Gowdy wrote:
> Hi Chris,
> 	I think you can turn that check off in xrootd's config file. IN2P3
> had to do that due to a similar problem (although it might have been the
> other way round, the server in the subdomain).
> 
> 							regards,
> 
> 							Stephen.
> 
> On Mon, 25 Oct 2004, Brew, CAJ (Chris) wrote:
> 
> 
>>Hi,
>>
>>We have a problem with the way xrootd decides whether a connection is a WAN
>>connection.
>>
>>Some of the worker nodes at RAL are in the gridpp.rl.ac.uk domain and our
>>xrootd servers are in the higher level domain rl.ac.uk.
>>
>>Jobs running on the machines in the gridpp subdomain fail because the refuse
>>to connect to the different domain.
>>
>>lcg0338 - ~/work/anal21 $ KanCollUtil
>>/store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_0291.01.root
>>041025 11:33:48 14069 Warn: XTNetConn::checkUrlDomain      - Skipping url
>>[root://csflnx108.rl.ac.uk///store/PRskims/R14/14.4.0d/BFourBody/02/BFourBod
>>y_0291.01.root.01.root]. Its domain [.rl.ac.uk] differs from the client's
>>one [.gridpp.rl.ac.uk].
>>041025 11:33:48 14069 Err : XTNetFile::CTOR                - All server
>>specified are out of the client's domain. Going into zombie state.
>>ERR Could not open a file expected to contain the event header:
>>ERR    LFN =
>>/store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_0291.01.root.01.root
>>ERR    PFN =
>>root://bbr-rdr01.rl.ac.uk//store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_
>>0291.01.root.01.root
>>ERR Check collection name and access method...
>>
>>Trying to fix this by adding Root.XTNetFileAllowWanConnect:   1 to an
>>.rootrc file changes the error but does not fix the problem.
>>
>>lcg0338 - ~/work/anal21 $ KanCollUtil
>>/store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_0291.01.root
>>041025 11:36:21 14080 Err : XTNetConn::handleServerError   - Redirection to
>>a server out-of-domain disallowed. Abort
>>Aborted
>>
>>This is going to cause jobs to randomly fail at RAL, could the client be
>>fixed to recognise that subdomains are not WAN connections.
>>
>>Thanks,
>>Chris.
>>
>>
> 
> 
> --
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