[R] IP address

[Peter Dalgaard]

On 09/16/2010 04:42 PM, Ben Bolker wrote:
> Jorge Nieves <jorge.nieves <at> moorecap.com> writes:
> 
>>
>>
>> Hi,
>>
>> We have some tight controls in our systems and I am having difficulty
>> downloading/upgrading R packages.  The IT department will configure our
>> system to let me download packages from two or three R depositories.
>> How do I find out what the IP address of the R depositories are so that
>> I can select a few? The IT department needs to know the IP addresses.
>>
>> Thanks,
>>
>> Jorge Nieves
>>
> 
>   This works for me.  Substitute your closest mirror(s).
> (I believe 'ping' should be available on Windows, MacOS, or Linux
> in a command window.)
> 
>> ping probability.ca
> PING probability.ca (128.100.73.51) 56(84) bytes of data.
> 64 bytes from markov.utstat.toronto.edu (128.100.73.51): icmp_seq=2 ttl=52
> time=125 ms
> 64 bytes from markov.utstat.toronto.edu (128.100.73.51): icmp_seq=3 ttl=52
> time=152 ms
> 
>> ping cran.r-project.org
> PING cran.wu-wien.ac.at (137.208.57.37) 56(84) bytes of data.
> 64 bytes from cran.wu-wien.ac.at (137.208.57.37): icmp_seq=1 ttl=44 
>   time=123 ms
> 64 bytes from cran.wu-wien.ac.at (137.208.57.37): icmp_seq=2 ttl=44 
>   time=122 ms
> ^C
> 
>> ping r-forge.r-project.org
> PING r-forge.wu-wien.ac.at (137.208.57.38) 56(84) bytes of data.
> 64 bytes from r-forge.wu-wien.ac.at (137.208.57.38): icmp_seq=1 ttl=44 
>    time=123 ms
> 64 bytes from r-forge.wu-wien.ac.at (137.208.57.38): icmp_seq=2 ttl=44 
>   time=122 ms
> ^C

Hum, ping probes may not travel far on a tightly secured system, but I
suppose that it will display the address anyway. Rather startling that
an IT department don't know how to operate a DNS search themselves, though.

-- 
Peter Dalgaard
Center for Statistics, Copenhagen Business School
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com