HTTP 403 when accessing gcc.gnu.org from MIT Lincoln Laboratory

HTTP 403 when accessing gcc.gnu.org from MIT Lincoln Laboratory

[Ward, David - 0665 - MITLL]

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Hi, it seems that gcc.gnu.org is actively blocking any HTTP traffic from 
MIT Lincoln Laboratory, which all originates from our proxy server, 
llproxy.ll.mit.edu (129.55.200.20). This has been happening for at least 
the past month. Can you please check your server configuration to ensure 
that this address has not been accidentally blacklisted?

Thanks,

David

-- 
David Ward ‒ Associate Staff
Tactical Networks Group
MIT Lincoln Laboratory
Office: 781-981-4266
Mobile: 781-999-1925
E-mail: david.ward@ll.mit.edu




-------- Forwarded Message --------
Subject: 	RE: Proxy Causes HTTP 403 Errors from gcc.gnu.org - Ticket # 
152319
Date: 	Mon, 11 Jan 2016 13:28:55 +0000
From: 	Balara, Nicholas - 1160 - MITLL <Nicholas.Balara@ll.mit.edu>
To: 	Ward, David - 0665 - MITLL <david.ward@ll.mit.edu>



David,

On 12/14/15 we confirmed that this site can be accessed from outside the 
lab (on mobile phone and from SFAVC).  We also confirmed that traffic 
from the site to our external proxy was coming back with a 403 
forbidden. Please let us know if you have any other questions.

Regards,

Nick Balara

Information Services Department

IT Security Team

MIT Lincoln Laboratory

244 Wood Street

Lexington, MA 02420

781-981-4225

Nicholas.Balara@ll.mit.edu <mailto:Nicholas.Balara@ll.mit.edu>





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Re: HTTP 403 when accessing gcc.gnu.org from MIT Lincoln Laboratory

[Frank Ch. Eigler]

Hi -

> Hi, it seems that gcc.gnu.org is actively blocking any HTTP traffic from 
> MIT Lincoln Laboratory, which all originates from our proxy server, 
> llproxy.ll.mit.edu (129.55.200.20). [...]


That subnet was blacklisted for other functions on gcc.gnu.org
since 2004 for some sort of perceived and forgotten offence.
The http block is now removed.  Enjoy.

- FChE