I have a cgi program that gets an valid XML and then parses it using XML::SAX::ParserFactory, the parsing fails with the following error:

[Wed Jul 20 17:23:23 2005] [error] [Wed Jul 20 17:23:23 2005] -e:
\n[Wed Jul 20 17:23:23 2005] -e: 500 Can't connect to
www.ncbi.nlm.nih.gov:80 (connect: Connection timed out)
http://www.ncbi.nlm.nih.gov/entrez/query/DTD/pubmed_041101.dtd\n[Wed
Jul 20 17:23:23 2005] -e: Handler couldn't resolve external entity at
line 2, column 149, byte 171\n[Wed Jul 20 17:23:23 2005] -e: error in
processing external entity reference at line 2, column 149, byte 171
at /exlibris/sfx_ver/sfx_version_3/app/perl-5.8.6/lib/site_perl/5.8.6/
+sun4-solaris/XML/Parser.pm
line 187\n
[download]

I believe that the parsing fails because it can not get to the DTD (since the server is behind a firewall) but it is not clear to me why it attempts to connect to the dtd at: http://www.ncbi.nlm.nih.gov/entrez/query/DTD/pubmed_041101.dtd
since XML::SAX::ParserFactory by default does not do any validation and in my program i did not change the default settings of the parser.

any ideas?
Thanks Dana

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