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Trace shows URLs called, but I can't figure out why.


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This may have absolutely nothing to with PHP. I just don't know.

I am running some php5 programs that check to see if a user is logged in.

If so execution continues normally if not they are redirected to a Sign In URL.

Included in this process I create a trace record. If not signed in the

userid is set to unknown. The problem is these unknown records are not

from a user not signed In. They are associated to userid1 also the redirect

header(Location: URL='Sign_In.php5) is never executed and process appears

to not effect the user. I am wondering who, why and what is calling the

URLs that create the unknown trace records. This is a unique situation as

this is not happening to all users. A short version of the php5 is.

if (!isset($_SESSION['USERID']))

create unknown userid record

header(Location: URL='Sign_In.php5')

exit

else

create record with userid. In this case  userid1

continue normal eecution

 

USERID         DATE/TIME         EXECUTING PGM    CALLED BY PROGRAM 
-------------------------------------------------------------------
userid1-- Nov 14 @ 08:09:03 am - Program_A.php5 - Not Available
userid1-- Nov 14 @ 08:09:31 am - Program_B.php5 - Program_A.php5
Unknown-- Nov 14 @ 08:10:34 am - Program_B.php5 - Not Available
Unknown-- Nov 14 @ 08:10:36 am - Program_B.php5 - Not Available
userid1-- Nov 14 @ 08:11:18 am - Program_C.php5 - Program_B.php5
userid1-- Nov 14 @ 08:12:03 am - Program_D.php5 - Program_C.php5
Unknown-- Nov 14 @ 08:13:04 am - Program_C.php5 - Not Available
userid1-- Nov 14 @ 08:13:13 am - Program_E.php5 - Program_D.php5
Unknown-- Nov 14 @ 08:13:16 am - Program_A.php5 - Not Available
Unknown-- Nov 14 @ 08:13:18 am - Program_C.php5 - Not Available
Unknown-- Nov 14 @ 08:13:38 am - Program_D.php5 - Not Available
userid1-- Nov 14 @ 08:13:50 am - Program_F.php5 - Program_E.php5
Unknown-- Nov 14 @ 08:14:03 am - Program_E.php5 - Not Available
Unknown-- Nov 14 @ 08:14:22 am - Program_D.php5 - Not Available
userid1-- Nov 14 @ 08:14:27 am - Program_G.php5 - Program_F.php5
Unknown-- Nov 14 @ 08:14:30 am - Program_E.php5 - Not Available
Unknown-- Nov 14 @ 08:15:01 am - Program_F.php5 - Not Available
Unknown-- Nov 14 @ 08:15:56 am - Program_G.php5 - Not Available
Unknown-- Nov 14 @ 08:18:06 am - Program_F.php5 - Not Available

maybe spiders?

I don't know of any spiders. What really puzzles me is I don't know what triggers these entries. Only one user get this every time(1 of 54 user) they are logged in. If they originate on the server I would think this would happen to all users. I don't think the client is involved as the clients browser is never called. Still this would get one to believe the client is somehow involved.

This thread is more than a year old. Please don't revive it unless you have something important to add.

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