>...and it said that the DNS forward and reverse directions could not be checked,
Please provide the outputs that you are getting
>....I tried nslookup, and the lookup was not available.
(Also) provide outputs of the command sequence that you tried (and the results)
-- ' A nun once asked a penguin ' do you think the earth is flat ? ; the penguin replied :
Madam, it all depends , in Riemann geometries the earth can be perfectly flat! The nun thanked him , he tripped and fell forward : the poor animal had forgotten that he might be living in a Riemann geometry too!