Suse 10.1  Apache 2.2.8

Hello List,

i have just a little problem with name resolution using SSI. Customer of me is 
using <!--#echo var="REMOTE_ADDR"-->   and <!--#echo var="REMOTE_HOST"--> to 
show IP and Hostname of Client.
It works without any error, I tried with different ISP. Customer says that his 
IP could not resolved to hostname and this field stays empty.
I cannot reproduce this without his IP and i dont want to visit him at home ;)
With little PHP and gethostbyaddr or even on console using host i can resolve 
his IP to his hostename.
Is there a explaination why SSI could fail or is he just kidding me?
>From my side i di not see any errors or mistakes.

Thank you
Andre

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