topic Re: ACE URL Rewrite in Application Networking

ACE URL Rewrite

isgwebb1 — Sat, 01 Nov 2008 13:03:58 GMT

Hi Guys,

Just need to know if I'm correct but I'm trying to setup a HTTP Rewarite for a hostname. I.E if a user addressed http://test.joebloggs.com and i wanted it to redirect to http://test1.joebloggs.com can this function do that?

If so I have tried but doesn't seem to work see my action list line;

action-list type modify http PoC_APPS_HTTP_Mod

header rewrite both location header-value "http://test" replace "http://apps"

a little new to ACE so this is a POC test.

Regards

Matt

Re: ACE URL Rewrite

Gilles Dufour — Tue, 04 Nov 2008 13:47:32 GMT

Here is the correct way to do it:

action-list type modify http RewriteHost

header rewrite request Host header-value "test(.*)" replace "apps%1"

Be aware that does not redirect the user to apps. It just forwards the request to the test server with the host field rewritten in the http header.

If you want a redirect to a different server, you need to create a redirect service which will send a 302 redirect to the client forcing a new connection to be open to apps....

Gilles.

Re: ACE URL Rewrite

dknoezinger — Tue, 03 Feb 2009 09:15:41 GMT

Hi Gilles,

I have a question concerning that matter:

How about Rewriting not just the Host part of the Request but the GET part, as well?

I tried that on the ace but failed - all I am able to rewrite is the HOST part.

Here is what I tried to do:

action-list type modify http URL_REWRITE

header rewrite request Host header-value "www(.*)" replace "www19%1"

header rewrite request GET header-value "/de/(.*)$" replace "/en/%1"

While the upper Rewrite of the HOST www to www19 worked fine, the Rewrite of the GET part did not work.

I also tried to just put the Rewrite of GET part alone inside, but did not work, either.

Hope anyone can clarify this...

Thanks and best regards,

Daniel

Re: ACE URL Rewrite

Gilles Dufour — Tue, 03 Feb 2009 09:57:50 GMT

You can't modify the url.

If you want to do so, you have to do a redirect which will force the web browser to send the correct url.

Gilles.

Re: ACE URL Rewrite

dknoezinger — Tue, 03 Feb 2009 10:07:05 GMT

Hi Gilles,

thanks for the information. is that not possible in general or is it just not implemented, yet?

do you know anything about ACE and ssl/tls server name indication (sni)? need that to be able to migrate the ssl termination from apache servers to the ace - but could not find anything about that...

thanks and best regards,

daniel

Re: ACE URL Rewrite

Gilles Dufour — Tue, 03 Feb 2009 13:32:46 GMT

It has never been possible to change the URL with a Cisco loadbalancer.

Design decision as obviously this should be possible.

I don't think there is any plan to support the modification of the url.

We do not support SNI currently.

I'll check if there is any plan for it.

Thanks,

Gilles.

Re: ACE URL Rewrite

Gilles Dufour — Wed, 04 Feb 2009 13:43:28 GMT

Daniel,

there is currently no plan.

I'm pushing hard to get it added because I think it is really useful.

If you could ask your Cisco contact to introduce an official request to the Product Manager, that can help move faster.

Tx.

Gilles.

Re: ACE URL Rewrite

dknoezinger — Wed, 04 Feb 2009 13:54:10 GMT

Hi Gilles,

Thanks a lot for that clarification - that helps me a lot. I'll talk to the Austrian account team in case the customer insists on it.

Best regards,

Daniel

Re: ACE URL Rewrite

bogdan.badiu — Tue, 09 Nov 2010 16:22:20 GMT

Hello, Any news on that URL Rewrite support on ACE?

I really do not understand why is missing

Bogdan