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Home > Archive > SQL Anywhere Mobile > April 2005 > HTTP sync without Redirector
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HTTP sync without Redirector
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| Greetings.
In the Online Books for 9.0.2.2451 in this section:
MobiLink Administration Guide
Synchronizing Through a Web Server With the Redirector
Introduction
Options when using a web server
it says when you meet this criteria in the table:
One MobiLink synchronization server
Direct connection not possible
that you should do this:
Use an HTTP or HTTPS proxy to pass messages through the web server to the
MobiLink synchronization server
(and not use the Redirector, I gather[?])
I'm trying to understand:
1. what it means to "use an HTTP....proxy to pass messages through the web
server..." Is there any documentation that talks about the details of this?
2 why you wouldn't want to use the Redirector in this situation.
Thank you for your help.
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| Greg Fenton 2005-04-28, 1:26 pm |
| Jim wrote:
>
> I'm trying to understand:
> 1. what it means to "use an HTTP....proxy to pass messages through the web
> server..." Is there any documentation that talks about the details of this?
As that page points out, you need to look at your webserver's
documentation on how to set up a proxy. In this case, we'd be talking
about a "reverse proxy" (at least in apache HTTPD terminology).
If you are targeting Apache, look up the ProxyPass and ProxyPassReverse
configuration statements on http://httpd.apache.org/
> 2 why you wouldn't want to use the Redirector in this situation.
>
Doing a Reverse Proxy in apache is simply using existing functionality
within the webserver. Some administrators may flinch at the idea of
adding a third-party server module. The same ideology likely holds for
other webservers.
But there are some benefits from the redirector (e.g. load balancing
across multiple ML servers). So if you are going through a webserver,
we'd suggest using the redirector (as that page mentions).
greg.fenton
--
Greg Fenton
Consultant, Solution Services, iAnywhere Solutions
--------
Visit the iAnywhere Solutions Developer Community
Whitepapers, TechDocs, Downloads
http://www.ianywhere.com/developer/
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| > across multiple ML servers). So if you are going through a webserver,
> we'd suggest using the redirector (as that page mentions).
....but only if we have more than 1 ML server running (as the page mentions),
correct?
"Greg Fenton" <greg. fenton_NOSPAM_@ianyw
here.com> wrote in message
news:42712380$1@foru
ms-2-dub...
> Jim wrote:
web[color=darkred]
this?[color=darkred]
>
> As that page points out, you need to look at your webserver's
> documentation on how to set up a proxy. In this case, we'd be talking
> about a "reverse proxy" (at least in apache HTTPD terminology).
>
> If you are targeting Apache, look up the ProxyPass and ProxyPassReverse
> configuration statements on http://httpd.apache.org/
>
>
>
> Doing a Reverse Proxy in apache is simply using existing functionality
> within the webserver. Some administrators may flinch at the idea of
> adding a third-party server module. The same ideology likely holds for
> other webservers.
>
> But there are some benefits from the redirector (e.g. load balancing
> across multiple ML servers). So if you are going through a webserver,
> we'd suggest using the redirector (as that page mentions).
>
> greg.fenton
> --
> Greg Fenton
> Consultant, Solution Services, iAnywhere Solutions
> --------
> Visit the iAnywhere Solutions Developer Community
> Whitepapers, TechDocs, Downloads
> http://www.ianywhere.com/developer/
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| Graham Hurst 2005-04-29, 3:26 am |
| > ...but only if we have more than 1 ML server running (as the page mentions),
> correct?
Yes. Unless you have more than one ML server, you are probably better
off not using the redirector. One less hop that way, so it is simpler
and possibly better performing.
You can of course use the redirector if you prefer to.
Cheers,
Graham
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