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Forum Discussion

Vishakh_Krishna's avatar
Vishakh_Krishna
Icon for Nimbostratus rankNimbostratus
Nov 03, 2015

Do not want to rewrite Virtual Server's URL to the pool nodes URL

Dear Team,   Request if you can provide a solution for the below scenario:   We have created a Virtual Server with SSL offloading and can be accessed over the url http://star-dev.domain.ae. ...
application delivery
LTM
Henrik_Gyllkran's avatar
Henrik_Gyllkran
Icon for Nimbostratus rankNimbostratus
Nov 03, 2015

In some applications there is the possibility of making it aware that they reside behind an ADC or proxy and you can specify the external URL so that the application generates the URL:s according to that. That is probably the preferred option if that is possible. However, if there is no such setting in the application it can always be solved by having the BIG-IP rewriting the application data before sending it out to the client. The easiest choice here is the stream profile. With the help of that you can have the BIG-IP rewrite all occurrences of to http://star-dev.domain.ae. It's pretty neat:

 

https://support.f5.com/kb/en-us/solutions/public/8000/100/sol8115.html

 

In case you have multiple strings to rewrite, say for instance that you have and so on that all should be rewritten to you need to combine the stream profile with an iRule that matches multiple strings in the data streams:

 

https://support.f5.com/kb/en-us/solutions/public/7000/000/sol7027.html

 

Finally, I would recommend in case you make use of the stream profile that you also enable a compression profile on your virtual server, because if the server responds with compressed data the stream profile will not be able to match the strings. Having the BIG-IP performing http compression on behalf of the server prevents the server from compressing the data and thus avoids that problem.