[Rd] Access to cran.us.r-project.org

[Douglas Bates]

I am the maintainer of one of the CRAN mirrors in the U.S.,
cran.us.r-project.org.  It appears that this site has been
inaccessible since Friday.

This has me puzzled because I can connect to the same machine through
ssh and I can see that the http daemon (apache) is running.  In fact I
can make an http connection from this machine to this machine and from
other machines on any of our subnets to this machine.

My only theory is that something has changed at the interface between
our network and external networds so that it no longer forwards
incoming packets to port 80.  I can't check this easily myself because
my outside connection is from a computer running Windows and I don't
know anything about network diagnostics under Windows.

Could someone tell me 
 a) Does this site indeed appear to be down?
 b) If you try to trace the route to this site, where does the
 roadblock appear to be?
 c) Is there a way of finding out if the problem is specific to port
 80?

-- 
Douglas Bates                            bates@stat.wisc.edu
Statistics Department                    608/262-2598
University of Wisconsin - Madison        http://www.stat.wisc.edu/~bates/
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