[Mapserver-users] Mapserver WMS client and proxy server

Wed Jul 2 10:56:22 EDT 2003

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Stefan -
=20
That's a little puzzling.  How does the firewall know that a CGI is =
making the request?  It's just a regular HTTP GET request.
=20
You should be able to construct a simple WMS request to that server by =
simply typing the request in the address bar of your browser.  Test to =
see whether that request works in a regular browser session *running on =
the WMS client server in the same security/user context as MapServer*.  =
Perhaps that server can't make HTTP requests at all (which makes sense). =
 But if a browser running on that machine can make the WMS request, the =
CGI should be able to, too.
=20
    - Ed
Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
ed at topozone.com
(978) 251-4242=20

-----Original Message-----
From: Stefan Wiegand [mailto:s.wiegand at kdvz.de]
Sent: Wednesday, July 02, 2003 5:23 AM
To: mapserver-users at lists.gis.umn.edu
Subject: [Mapserver-users] Mapserver WMS client and proxy server

Hello all,=20

I am having problems with using the WMS-client support in MapServer 3.6 =
(CGI). I try to connect to an external WMS Server via layerdefinition. =
The request to the server simply does nothing until it times out. We are =
using a proxy and firewall between the mapserver and the Internet and =
this is the problem (sys-admin told me). It is not allowed to connect =
directly between cgi-exe and a server outside. Any ideas or solution how =
to handle this problem?=20

Thanks=20
Stefan Wiegand=20
Mail: s.wiegand at kdvz.de
www.kdvz.de=20

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<BODY>
<DIV><SPAN class=3D470255314-02072003><FONT face=3DArial color=3D#0000ff =
size=3D2>Stefan=20
-</FONT></SPAN></DIV>
<DIV><SPAN class=3D470255314-02072003><FONT face=3DArial color=3D#0000ff =

size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D470255314-02072003><FONT face=3DArial color=3D#0000ff =
size=3D2>That's=20
a little puzzling.&nbsp; How does the firewall know that a CGI is making =
the=20
request?&nbsp; It's just a regular HTTP GET request.</FONT></SPAN></DIV>
<DIV><SPAN class=3D470255314-02072003><FONT face=3DArial color=3D#0000ff =

size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D470255314-02072003><FONT face=3DArial color=3D#0000ff =
size=3D2>You=20
should be able to construct a simple WMS request to that server by =
simply typing=20
the request in the address bar of your browser.&nbsp; Test to see =
whether that=20
request works in a regular browser session *running on the WMS client =
server in=20
the same security/user context as MapServer*.&nbsp; Perhaps that server =
can't=20
make HTTP requests at all (which makes sense).&nbsp; But if a browser =
running on=20
that machine can make the WMS request, the CGI should be able to,=20
too.</FONT></SPAN></DIV>
<DIV><SPAN class=3D470255314-02072003><FONT face=3DArial color=3D#0000ff =

size=3D2>&nbsp;</DIV>
<DIV>&nbsp;&nbsp;&nbsp; - Ed</DIV>
<DIV>
Ed McNierney President and Chief =
Mapmaker TopoZone.com /=20
Maps a la carte, Inc. 73 Princeton Street, Suite 305 North =
Chelmsford,=20
MA&nbsp; 01863 ed at topozone.com (978) 251-4242 =
</DIV>
<BLOCKQUOTE>
 <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>-----Original Message----- From: Stefan Wiegand=20
 [mailto:s.wiegand at kdvz.de] Sent: Wednesday, July 02, 2003 =
5:23=20
 AM To: mapserver-users at lists.gis.umn.edu Subject:=20
 [Mapserver-users] Mapserver WMS client and proxy=20
 server </DIV> Hello =
all,=20
 I am having problems with =
using the=20
 WMS-client support in MapServer 3.6 (CGI). I try to connect to an =
external WMS=20
 Server via layerdefinition. The request to the server simply does =
nothing=20
 until it times out. We are using a proxy and firewall between the =
mapserver=20
 and the Internet and this is the problem (sys-admin told me). It is =
not=20
 allowed to connect directly between cgi-exe and a server outside. Any =
ideas or=20
 solution how to handle this problem? Thanks Stefan =
Wiegand=20
 Mail:=20
 s.wiegand at kdvz.de www.kdvz.de =
 </BLOCKQUOTE></BODY></HTML>

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