[Mailman-Users] Problems with Mailman under 'secure' Linux kernels

Mike Burton mburton at jo.birdsense.com
Thu Jan 10 14:19:41 CET 2002

Thank you, Richard.  This sounds like a reasonable answer to what 
is happening.  I'm not sure that I want to reload Lunix to 
accomplish setting up Mailman.  I certainly hope there is a 
workaround that someone can share.  I also didn't mention that this 
was only through the web interface.  I can use the mail interface to 
subscribe without incident.  Oh well, guess I'll just have to sit back 
and see if there is an answer for this problem that comes forth.  
Otherwise I guess I'm just not going to be able to consider Mailman 
on my system.  Bummer...

Thanks again,

On 10 Jan 2002, at 10:26, Richard Barrett wrote:

> I think this should be re-titled 'Mailman problem under 'secure' Linux
> kernels.
> I have seen this problem reported recently on this list by another
> user.
> While I do not run any 'secure' version of linux kernel, I think the
> problem results from restrictions on the creation of hard links under
> such kernels. My understanding is that in a attempt to prevent denial
> of service attacks based on disk quotas, there is a kernel patch which
> restricts who can create hard links: I believe the EUID of the link
> creator has to match the UID of the file owner. This explains why the
> error code is 1 (Operation not Permitted) rather than say 13
> (Permission Denied).
> I do not know any way round the problem - maybe someone else does -
> other than not using this 'security' patch.

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