[154238] in North American Network Operators' Group
Re: http/ssl to dropbox.com dying
daemon@ATHENA.MIT.EDU (Israel G. Lugo)
Fri Jun 29 20:07:17 2012
Date: Sat, 30 Jun 2012 01:05:47 +0100
From: "Israel G. Lugo" <israel.lugo@lugosys.com>
To: nanog@nanog.org
In-Reply-To: <2A09FE69-5C55-42DB-AD06-E519E03C95E2@gmail.com>
X-SA-Exim-Mail-From: israel.lugo@lugosys.com
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hi,
On 06/29/2012 11:20 PM, Greg Ihnen wrote:
> It seems like a transport issue.
>
> Is there any tools for checking where an https connection is failing, like a traceroute for https?
GNU/Linux traceroute sends UDP by default. Something along the way could
be filtering UDP, so default traceroute may not be indicative.
To better replicate the problem, you can tell traceroute to send TCP
SYNs to the specific port you're trying to reach (443). Run this as root
(it needs raw sockets):
# traceroute -M tcp -p 443 dropbox.com
Regards,
Israel G. Lugo
