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Hello, Yvan.


Could you add this line at xrootd configuration both redirector and servers?


xrd.network nokeepalive nodnr norpipa routes split use [Network Device of XDxxx]


eg) xrd.network nokeepalive nodnr norpipa routes split use em2


Regards,

----- Original Message -----
From : Andrew Hanushevsky <[log in to unmask]>
To : "Yvan CALAS" <[log in to unmask]>
Cc : <[log in to unmask]>
Sent : 2022-07-26 15:24:56
Subject : Re: Configuration of a XRootD server with 2 network interfaces


Hi Yvan,

The problem here is what the server declares itself to be to the
redirector is what the redirector will use when redirecting a client. So,
the question I have is why does it matter that the server wants to declare
itself to the redirect as "a" but the redirector needs to use "b" when
redirecting a client. I know, "for some reason" but that doesn't really
tell me what the issue is here so I can't offer another solution without
more information.

Andy


On Tue, 26 Jul 2022, Yvan CALAS wrote:

> Dear XRootD devs,
>
> I actually have a single XRootD server with two network interfaces and two different hostnames as follow:
>
> xrDxxx -> 134.xxx.yyy.zzz
> xrTxxx -> 193.ttt.uuu.vvv
>
> The command `hostname -f` returns xrTxxx (so the IP address corresponding to 193.ttt.uuu.vvv).
>
> With this configuration, the XRootD server declares itself to the redirector as xrTxxx:
>
> 220725 16:19:44 32215 Protocol: server.616532:26@xrTxxx:1095 system ID: s-alicet1@xrTxxx 4448myredirector
> =====> Routing for xrTxxx: local pub4 prv4 pub6 prv6
> =====> Route all4: xrTxxx Dest=[::193.ttt.uuu.vvv]:1095
> =====> Route all6: xrTxxx Dest=[2001:660:-----]:1095
>
> For some reason, I would like to change the server hostname from xrTxxx to xrDxxx. By doing this, the server then declares itself to the redirector as xrDxxx but it is not what I want to obtain. The redirector should still see the server as xrTxxx (all the clients must establish a connection with the server with the IP address 193.ttt.uuu.vvv).
>
> Is there a way to achieve this ?
>
> Thanks,
>
> Yvan
>
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