Question

find OS user id from SID

Asked by: benpung

i have an application running on an IIS web server.  the user logs into the application using domain id and password.  the application then logs into the database with the application username and password.  so, when looking at the v$session table, it looks like all the oracle users and os users are the same.  is there a way, based on the PID or SID or something that i can get the domain (i.e. workstation) userid of the person that is actually logged into the web front end?  if that is confusion post and i'll try to clarify.  thanks.

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Asked On
2005-07-12 at 12:59:08ID21489012
Tags

oracle

,

find

,

sid

,

user

,

id

Topic

Oracle Database

Participating Experts
3
Points
125
Comments
12

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Answers

 

by: jrb1Posted on 2005-07-12 at 13:31:07ID: 14425291

I think this will give you the user ID you are looking for:

sys_context('USERENV','OS_USER')

 

by: benpungPosted on 2005-07-12 at 13:56:17ID: 14425528

i believe that this is going to return the user that is running the IIS service on the web server, which in my case is the same for all users.  so i have a user, user abc, that logs into my web server.  the web server authenticates user abc against the domain server.  then it allows the user to access the application which uses a service to log into the database.  the service is run by userService and the database name is userDatabase for all users.  so if i run the above for userDatabase i always get userService when what i'm wanting is to get all the way back to userabc.  does that make sense?

 

by: jrb1Posted on 2005-07-12 at 14:37:34ID: 14426050

Oh, I got you.  In that case, there's no way you can pull that information from the database, but you might be able to get it from the web server.

 

by: slightwvPosted on 2005-07-13 at 08:54:57ID: 14432533

I tend to agree with jrb1.  Oracle pretty much only knows about the specific machine/user that connects to it.

I'm not sure of the specific requirements of the request but you might look into creating an audit type table that would capture this information in the DB when a user logs into the app.

 

by: benpungPosted on 2005-07-13 at 14:29:49ID: 14435933

slightwv,

that is a possibility.  however, i only need this info to trouble shoot some issues that we are having with a vendor's software.  it's nothing that i will need over time.  i'm just looking for a quick and dirty way to get the info on a one-off basis.  i am going to post a link to this in the windows server area and see if anyone can tell me how to get this info off of the web server.  thanks.

 

by: Dave_DietzPosted on 2005-07-13 at 16:41:23ID: 14436705

<%
Response.write("Name of requesting machine : " & Request.Servervariables("REMOTE_HOST"))
Response.write("<br>")
Response.write("IP Address of requesting machine : " & Request.Servervariables("REMOTE_ADDRESS"))
%>

This ASP code will show you the NetBIOS name of the requesting machine if available and the IP address of the requesting machine.

Dave Dietz

 

by: slightwvPosted on 2005-07-14 at 05:44:25ID: 14440060

You mention IIS but not the code base.  If you wanted someting you could turn on and off and are using .Net, you might add something like a debug app config variable in the web.config.

Then if you added the tracking from the login piece of the code, it would check the web.config to see if it actually needed to place it in the DB or not.

Granted, not a perfect solution but that's about all I can think of.  Good luck with the other post.

 

by: benpungPosted on 2005-07-15 at 06:10:45ID: 14450348

Dave_Dietz,

Can you give me an expanation of how to use the ASP code you provided, where to put it, how to use it?  I'm not familar with ASP at all.

thanks.

 

by: Dave_DietzPosted on 2005-07-15 at 08:14:54ID: 14451673

You would need to add one or both of the lines pulling servervariables to the applciation on the web server to get the information you are looking for.

Once you have these info you could pass it to the DB via a querey or basically do whatever youwant with the information.

Dave Dietz

20120131-EE-VQP-002

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