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  2. MIDRANGE-L
  3. November 2007

RE: Web server info

Charles,

You can definitely have a Tomcat, or other application server running
without a HTTP server, however I would not recommending doing so in a
production environment. The HTTP server is there to do a couple of things
in relation to the application server.

1. Most importantly, it provides another level of security between the
application server and the big bad Internet. The HTTP server knows what
requests the application server is setup to handle and only forwards those
along.

2. It takes some of the load off of you application server. HTTP servers
are much better at serving up static and cacheable content than application
servers.

3. It lets you do things like redirecting traffic, or rewriting URLs that
you cannot do with an application server.


Jim McLean



"Wilt, Charles"
<WiltC@xxxxxxxxxx
> To
Sent by: "Midrange Systems Technical
midrange-l-bounce Discussion"
s@xxxxxxxxxxxx <midrange-l@xxxxxxxxxxxx>
cc

11/12/2007 12:31 Subject
PM RE: Web server info


Please respond to
Midrange Systems
Technical
Discussion
<midrange-l@midra
nge.com>






You know as soon as I sent it I knew _somebody_ would come back with that.
<grin>

I was thinking in the back of my mind it was possible, but I've never seen
it. What kind of scenarios
to you use WAS/Tomcat by itself? Can a browser talk directly to
WAS/Tomcat? If not then can you
really consider it a "web" application server if you don't have a web
server in front?

Charles

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Aaron Bartell
Sent: Monday, November 12, 2007 10:47 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Web server info

You can't use a web application server without a web
server, but you
could
have just a web server
without a web application server.

You sure can, and it is actually my preferred method for some
of the projects I am on. Simply start up Tomcat on ANY
machine and you have a web application server. No need to
front-end it with Apache/IIS/etc, but you definitely _can_ if
the business requirements necessitate it.

Aaron Bartell
http://mowyourlawn.com

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Monday, November 12, 2007 9:18 AM
To: Midrange Systems Technical Discussion
Subject: RE: Web server info

There's really only one "web server".

The standard HTTP server (powered by Apache) that ships with
OS/400. (note that I've heard of some installing and using
the latest and greatest version of Apache downloaded directly
from apache.org.)

There used to be another option, the original IBM provided
HTTP Server for iSeries which was dropped at v5r3.
http://publib.boulder.ibm.com/iseries/v5r2/ic2924/info/rzaie/r
zaiemigration.
htm


WAS, WAS Express, and Tomcat are "web application servers"
which are separate and distinctly different animals than "web
servers".


You can't use a web application server without a web server,
but you could have just a web server without a web application server.

What do you want to do?

HTH,
Charles



-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Pat Barber
Sent: Monday, November 12, 2007 10:04 AM
To: Midrange Systems Technical Discussion
Subject: Re: Web server info

Since I wasn't aware that there was even more than one,
gives you some
idea of how much I know on this subject.

Thanks for the suggestions.


Mark S. Waterbury wrote:

Hi, Pat:

Exactly what "web server" are you talking about?

If it is the standard HTTP server powered by Apache that
ships with
OS/400, see:
http://www.redbooks.ibm.com/abstracts/sg246716.html

Or, if it is WAS Express, see:
http://www.mc-store.com/5064.html

Or, I suggest you might want to try Apache Tomcat. See:
http://www.itjungle.com/mpo/mpo021402-story02.html
and
http://www.itjungle.com/mpo/mpo021402-story05.html

For starters...

Cheers,

Mark S. Waterbury

Pat Barber wrote:


Anybody recommend a "See Dick & Jane" book on getting
started with the
web server on V5R4 ???



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