Thanks for the update.

More to investigate tomorrow now.

Regards Peter

-----Original Message-----
From: [email protected] [mailto:[email protected]] On 
Behalf Of Jorke Odolphi
Sent: Tuesday, 19 July 2011 5:57 PM
To: ozDotNet
Subject: RE: Web Service Application Pool Identity

School of hard knocks ☺ 

Best way I’ve found is to sit on the w3wp process with process explorer and 
check out the security accounts associated with the process – other stuff is on 
http://learn.iis.net/ 

Off the top of my head 

Localsystem has full access to everything on the system
Local service is like an authed user
Network service is like local service except it can access the network in the 
context of the computer.


They are different - I think service is  group for services and same for 
network except for network services - you shouldn't use these in standard app 
configs - if you can pull the SID of the account, google it in bing, you should 
see more detail on them.



Sent from my Windows Phone 7


From: [email protected] [mailto:[email protected]] On 
Behalf Of Peter Maddin
Sent: Tuesday, 19 July 2011 7:41 PM
To: 'ozDotNet'
Subject: RE: Web Service Application Pool Identity

Ok Thanks

Out of curiosity where did you learn that?

I have found trying to decode some of this stuff quite difficult.

Also if you know what is the difference between SERVICE and LOCAL SERVICE
and NETWORK and NETWORK SERVICE?
Are they different or are they synonyms?  

Regards Peter

From: [email protected] [mailto:[email protected]] On 
Behalf Of Jorke Odolphi
Sent: Tuesday, 19 July 2011 5:25 PM
To: ozDotNet
Subject: RE: Web Service Application Pool Identity

IIS_IUSRS

From: [email protected] [mailto:[email protected]] On 
Behalf Of Peter Maddin
Sent: Tuesday, 19 July 2011 6:01 PM
To: 'ozDotNet'
Subject: Web Service Application Pool Identity

I am trying to get a handle on the in-built accounts used for Application pools 
used by a web service.

The default identity for DefaultAppPool is ApplicationPoolIdentity.

My web service needs read and write access to folders on the server hosting IIS.

What does the ApplicationPoolIdentity identity map to when one is selecting 
users and groups for a folder/file?

One can change the Identity to
• LocalSystem I guess this maps to SYSTEM 
• LocalService I guess this maps to SERVICE but it could also map to LOCAL 
SERVICE.
• NetworkService I guess this maps NETWORK or NETWORK SERVICE.

Currently I am using LocalSystem. Is this the best option?
What is ApplicationPoolIdentity?
What does one use when one is selecting users and groups that maps to 
ApplicationPoolIdentity?

Any demystification greatly appreciated.


Regards Peter Maddin
Applications Development Officer
PathWest Laboratory Medicine WA
Phone : +618 6396 4285
Mobile: 0414 240 307 
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