Deactivating the reverse name lookup

[#1]

Hi,

We are having temporally problems to access to our R/3 productive

system.

Analyzing the dev_disp log we see that the dispatcher are constantly

deactivating and activating the reverse name lookup. Because a timeout

occurs in certain reverse lookup queries. We think that those actions

could be temporally hanging the system.

We already talked to the DNS administrator, and says that many pc are

not in dns zone, and for that the timeouts. Because the biggest of the

networks and the many clients pcs, it is very complicate to update the

dns with all the address.

As says in note 1055602, you can deactivate permanently the reverse

lookup via rdisp/reverse_name_lookup parameter.

Does anyone deactivated that parameter?

This reverse lookup make any sense?

Best Regards

Adrian

[Former Member]

Hello Adrian Lambardi,

I go through your query and come to know that you are facing the problem of constantly dispatcher deactivation due to reverse name lookup.

So, I found a beautiful solution of your query in the following tutorial mentioned on SAPTechies:

http://www.saptechies.org/deactivating-reverse-name-lookup/

Please visit this link and get the solution and tell me if it is helpful to you or not.

Thank You,

Sonia Barwar.

[Former Member]

Hai,

I guess you can deactivate the Reverse Name Lookup, as per the note. No harm.

Regards,

Yoganand.V

[Former Member]

Hi,

Yes, as think the same, but I known if we lost any functionality,

If it is not used, why is not deactivate by default ?

Regards

Adrian

[tim_buchholz]

Dear Adrian,

the reverse name lookup is used to be able to provide a symbolic name in case of errors. If you deactivate the name lookup, then the dispatcher will not be able to give symbolic names and will spit out IP addresses instead. It is not de-activated by default, since you really should have your DNS set up to speadily (we're talking ms here) to any requests, instead of broadcasting into the internet, trying to figure the symbolic name that matches an IP address.

Best Regards,

Tim