Hi,

are you using SSH?

I had a similar problem. It was solved using the parameter -Y with ssh
command.

Hope that helps.

2011/8/18 Rai, Siddhant P. <[email protected]>

>  Hi,****
> I have the following issue in the “Controller Choice A: NOX w/Python”
> section,   I am trying to “Verify Hub Behavior with tcpdump”  but when I
> try to create xterms for each host, I get the following error :****
>
> ** **
>
> mininet> Warning: This program is an suid-root program or is being run by
> the root user.****
>
> The full text of the error or warning message cannot be safely formatted**
> **
>
> in this environment. You may get a more descriptive message by running the
> ****
>
> program as a non-root user or by removing the suid bit on the executable.*
> ***
>
> xterm Xt error: Can't open display: %s****
>
> xterm:  DISPLAY is not set****
>
> ** **
>
> ** **
>
> What could be the issue?****
>
> ** **
>
> ** **
>
> -****
>
> Siddhant****
>
> ============================================================
> The information contained in this message may be privileged
> and confidential and protected from disclosure. If the reader
> of this message is not the intended recipient, or an employee
> or agent responsible for delivering this message to the
> intended recipient, you are hereby notified that any reproduction,
> dissemination or distribution of this communication is strictly
> prohibited. If you have received this communication in error,
> please notify us immediately by replying to the message and
> deleting it from your computer. Thank you. Tellabs
> ============================================================
>
> _______________________________________________
> openflow-discuss mailing list
> [email protected]
> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
>
>


-- 

Paulo César da Rocha Fonseca

Graduando em Ciência da Computação

Laboratório de Computação Inteligente e Autônoma

Universidade Federal do Amazonas (UFAM)
_______________________________________________
openflow-discuss mailing list
[email protected]
https://mailman.stanford.edu/mailman/listinfo/openflow-discuss

Reply via email to