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Portal iview in INTERNET mode give a "DNS error" /OK in INTRANET/

Hi

I'm installing a sapwebdispatcher ( Nw2004s ) to access a SAP Portal from INTERNET .

INTERNET adress is "abcd.INTERNETdomain.com"

This portal EP7 allow to connect CRM and R3 server .

All of this servers are locally on same domain called : "myINTRAdomain.net"

The single sign-on is configured between portal and CRM/R3 and works fine in INTRAnet mode .

-


INTRANET mode : -


browser call ep7.myINTRAdomain.net

==(sso)==> crm.myINTRAdomain.net

result : the portal iview call a bsp that open OK in this mode

status : ok

-


INTERNET mode : -


browser call abcd.INTERNETdomain.com

==> sapwebdip.myINTRAdomain.net

==> ep7.myINTRAdomain.net

==(sso)==> crm.myINTRAdomain.net

result : the portal iview call a bsp that open NOT OK in this mode

Error message is that appear in the browser ( iview frame ) :

The host you tried to contact ("crm.myINTRAdomain.net") cannot be resolved by DNS.

This error typically occurs when you mistype a URL.

status : NOT ok

=> For me , it's totally logical that this "local-intranet" adress of CRM server - crm.myINTRAdomain.net - is not know in INTERNET zone !

Only abcd.INTERNETdomain.com is known in INTERNET

What is the configuration to do ( in sapwebdispatcher ? , in portal ? ) to make the reverse proxy working ? is it the role af portal to generate the page or in sapwebdispatcher , ?

Thanks per advance

Yves

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