[sage-devel] Sage public notebook servers

2008-10-13 Thread William Stein 

Hello,

A security researcher decided to purposely take down sage.math to 
demonstrate that it is possible to fork bomb the machine through the 
public sage notebook servers.   I had always plan to run these comletley 
public servers until something like this happened.  Therefore, 
sagenb.org (and the other public sage notebook servers I host) will be 
completely disable until further notice.

I might re-enable them in the future if I set them up from scratch
using a vmware virtual machine and vmware server.  Given that I've never 
successfully configured vmware server on any Linux box, I don't know 
when this will happen.   If a Sage developer would like to attempt to do 
this instead of me on sage.math please contact me, since this is not
currently my highest priority (especially, because I'm in France 
traveling right now).

  -- William

--~--~-~--~~~---~--~~
To post to this group, send email to sage-devel@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at http://groups.google.com/group/sage-devel
URLs: http://www.sagemath.org
-~--~~~~--~~--~--~---

[sage-devel] sage public notebook

2008-07-05 Thread William Stein 

Hi,

I spent three hours optimizing some of the Sage notebook pickling code; see
http://trac.sagemath.org/sage_trac/ticket/3550

I just transitioned all the public notebooks over to use this new
code.  Let me know
if you have any new problems with sagenb.org as a result.The main difference
should be that the 3 minute pause one often got from the server at
sagenb.org should
be replaced by a 7 second pause every half hour.

 -- William

-- 
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org

--~--~-~--~~~---~--~~
To post to this group, send email to sage-devel@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at http://groups.google.com/group/sage-devel
URLs: http://www.sagemath.org
-~--~~~~--~~--~--~---