Question Re: Cannot find server or DNS Error for HTTPS page in Technology Q&A

Cannot find server or DNS Error for HTTPS page

Former Member — Sun, 04 Feb 2024 02:07:03 GMT

Hello Guys,

Wishing you a very happy new year.

We have developed ESS-HR kind of application using BSP Development. Everything is working fine but now client ask for Secure certificate so we have installed HTTPS.

This HTTPS pages are some times working fine but some time it gives error 'Cannot find server or DNS Error'

On the BSP pages there are so many HTMLB tags or controls like Tabs,table controls.

while navigating through this components it is generating events e.g. row , column selection in table control .

in HTTP page everything is working properly. In HTTPS some times it works but some time it is giving the above error .

Can any one please tell me why this error is coming?

I have checked the Properties of error page I found URL is

res://C:\WINNT\system32\shdoclc.dll/dnserror.htm#https://mcgee.pdb.siemens.de:8041/sap(bD1lbiZjPTEwMA==)/bc/bsp/sap/zehr_sharp/ExpClaim.htm?sap-params=em1vZGU9QyZ6ZWNmX3NlbnQ9JmVtcGlkPUU0NyZ3X2lzX3N1YnN0aXR1dGU9JndfY3JlYXRvcj1FNDc%3d

It means it has tried to redirect the same https URL.

Regards

Shailesh Singasane

Siemens PLC UK.

Re: Cannot find server or DNS Error for HTTPS page

eddy_declercq — Tue, 10 Jan 2006 19:29:35 GMT

Hi,

Can you check if your cert is vaild for this domain or not expired?

Check also this help on configuration

http://help.sap.com/saphelp_nw04/helpdata/en/65/6a563cef658a06e10000000a11405a/frameset.htm

and testing

http://help.sap.com/saphelp_nw04/helpdata/en/2f/18453caff4f703e10000000a114084/frameset.htm

Eddy

Re: Cannot find server or DNS Error for HTTPS page

Former Member — Mon, 16 Jan 2006 09:31:11 GMT

Hello Eddy,

I have checked certificate and SSL configuration everything is Ok.

Even it is working with HTTPS URL sometimes.

In my development there are so many different buttons like SAVE, SEND, DELETE etc.

There are HTMLB Tab control, Table control and all these objects having onClick event.

With HTTP non secure URL everything is working properly but with secure HTPS it fails at any event which is not fixed. It means some time table row selection is working, button click is working but tab selection is not working, sometimes tab selection is working properly but table selection is not working, sometime while button clicking it is giving error. The error is same ‘Page can not be Display. Cannot find server or DNS error’.

Many Thanks and regards

Shailesh Singasane

Re: Cannot find server or DNS Error for HTTPS page

eddy_declercq — Mon, 16 Jan 2006 10:35:19 GMT

Hi,

Are you sure that things like the FQDN is set properly. We web logs like /people/brian.mckellar/blog/2003/09/25/bsp-in-depth-fully-qualified-domain-names

Eddy

Re: Cannot find server or DNS Error for HTTPS page

eddy_declercq — Mon, 23 Jan 2006 08:58:05 GMT

Hi,

Pls don't forget to reward points and close the question if you find the answers useful.

Eddy

Re: Cannot find server or DNS Error for HTTPS page

Former Member — Mon, 30 Jan 2006 10:54:20 GMT

Thanks.

I have checked my system. We have FQDN.

I have tried to trace this error through HTTP lookup tool.

but it didn't trace this error.

It has shown 200 Ok return code and connection is Keep-alive.

So I am wondering why this error is occurring. This error occurs only with HTTPS url not with HTTP url.

Can you please suggest me any other solution.

Many thanks and regards

Shailesh.

Re: Cannot find server or DNS Error for HTTPS page

rainer_liebisch — Mon, 30 Jan 2006 11:26:04 GMT

Hi Shailesh,

if HTTPS works sometimes and sometimes not, it might be that the port you use for HTTPS is sometimes also in use be another application. You can check this by setting another number for the HTTPS port.

Regards,

Rainer

Re: Cannot find server or DNS Error for HTTPS page

Former Member — Wed, 01 Feb 2006 11:56:47 GMT

Hi Shailesh,

some versions of the wininet.dll library of Microsoft show problems when using https. These problems (in my case) showed up irregularly in IE when the Option "Show friendly http-error message" was set. The solution in my case was a patch by Microsoft handling this issue. Please have a look at SAPNote 900804 that contains some more information and links to the related Microsoft patches.

Hope that helps.

Best Regards

Michael