Issue with SAP Web Dispatcher after changing the parameter icm/HTTP/redirect

[former_member203029]

I am facing a peculiar problem with the web dispatcher, So we configured the dispatcher to work for http and https as well until recently we made some modifications to the parameter to make the http to https and vice versa to work for another series of links .Though we succeeded in the Quality system we couldn’t achieve the same in the Production system. We achieved the desired result by modifying the parameter icm/HTTP/redirect_0 And now there seems to be an issue regarding this. Whenever I try to maintain the same parameters as in Quality to Production System , the Url is not hitting the SAP Web Dispatcher , making it not possible for the application servers to display the content there by the site not being displayed. Kindly let me know what the issue is. PS: Am making an attachment of the SAP Web Dispatcher profile. Thanks & Regards, Kaushik G

SAPWDP000 Profile.txt.zip

SAPWDQ000 Profile.txt.zip

[Former Member]

Hello Kaushik,

Please check Port 81$$ is open and firewall settings.

[former_member203029]

we are good with port as well as firewall

[isaias_freitas]

Hello Kaushik,

the Url is not hitting the SAP Web Dispatcher

What exactly does that mean? Can you share a screenshot with the error? (disable the "show friendly HTTP error messages" option from IE before simulating the issue)

Regards,

Isaías

[former_member203029]

Hi Isaías, As it's a production dispatcher am not sure I can't simulate the issue. The term hitting refers to the action performed by the url i.e the url which we entered would pass through the dispatcher. Regards, Kaushik.

[cris_hansen]

Hello Kaushik,

Look at the web dispatcher trace file and see whether the request is getting in.

If yes, then go through the thread that received the request and see what happens when it tries to reach an application server.

Regards,
Cris

[isaias_freitas]

Hello Kaushik,

If I understood correctly, you would have to review your redirect parameter(s).

Its conditions would not be matching the involved URL.

Other points that are important:

1. The redirect parameters are not necessarily applied in the order they appear in the profile.
   In other words, it is not guaranteed that the redirect_0 will be evaluated before the redirect_1;
2. After a redirect was sent, the target URL might match the conditions of another redirect.
   If this is the case, another redirect will be sent.
   The Web Dispatcher will not consider whether the new connection was a result of a previous redirect.

Regards,

Isaías

[former_member203029]

Hello Isaías, Upon watching the HTTP watch trace and the Production Dispatcher trace I see , Whenever I try to access the http://www.ABCD.com then it automatically gets redirected to https://www.ABCD.com , Though I had  modified the parameter icm/HTTP/redirect_X according to my needs I can’t achieve my requirement. Kindly do let me know if there are any other parameters that I need to modify. My requirement is whenever I try to enter the website http://www.ABCD.com it should not redirect to https version of the website. Regards. Kaushik.

[former_member203029]

Hello Cristiano, I see whenever I try to access the http://www.ABCD.com then it automatically gets redirected to https://www.ABCD.com , Though I had  modified the parameter icm/HTTP/redirect_X according to my needs I can’t achieve my requirement. Kindly do let me know if there are any other parameters that I need to modify. My requirement is whenever I try to enter the website http://www.ABCD.com it should not redirect to https version of the website. regards, Kaushik G

[isaias_freitas]

Hello Kaushik,

Please share the current redirect parameters you have in the profile (or attach the whole updated profile).

Regards,

Isaías

[former_member203029]

Hi Cristiano, For the scenario which you mentioned, we had already cleared the cache and checked in Mozilla, Chrome, IE 11 and even for Incognito mode as well but no luck. Currently we are checking with the Firewall and the network team as well. I would like to know whether there are any settings that must be done with the DNS or the Firewall setting where the Url is forcibly converted to https from http. Regards, Kaushik G

[isaias_freitas]

Hello Kaushik,

Is there any network equipment in front of the Web Dispatcher? Like a hardware load balancer?

Did you verify whether such equipment is performing the redirect?

Regards,

Isaías

[former_member203029]

Hi Isaias, We have Akamai as of now.

[isaias_freitas]

Did you verify whether Akamai is performing the redirect?