The OSSEC version is 2.7.1 beta1

*The scenario is like below:*
1. I wrote the customized decoder XML and rule for monitoring one App's log 
file. 
2. The decoder and rule work well. The alert has been triggered and mail 
sent when the new matched rule log entry added into log file.
3. But the case happens when another new log entry appended in log file.  
*
*
*Issue:*
[the first matched log entry and the new appended matched log entry 
combined together for sending mail ]

*Expected result:*
[Only the new added log entry which matched the rule could be included in 
the alert scope.]




*The log file is like below (ignore the list number):*

   1. 2013-08-01 14:32:10 [AppError]@IP:10.1.1.1   
   2. 2013-08-01 14:38:40 [AppInfo]@IP:10.1.1.1
   3. 2013-08-01 14:42:05 [AppTest]@IP:10.1.1.1
   4. 2013-08-01 14:52:18 [AppError]@IP:10.1.1.1
   

*The decoder rule is only report [AppError] log entry.*
When the #1 log entry added into log file(match rule), the alert is 
triggered and email sent. (Works good)
When the #2 log entry added into log file(doesn't match), the alert is 
still triggered and the mail content is the #1 log entry.  (the first old 
matched log entry still reported)
When the #3 log entry added into log file(doesn't match), the alert is 
still triggered and the mail content is the #1 log entry.  (the first old 
matched log entry still reported)
When the #4 log entry added into log file(match rule), the alert is 
triggered and the mail content is #1 + #2 log entry together. (combined two 
matched log entry)


*My concern is why the system always reports all matched log entry instead 
of just report new added one according to the time stamp?*




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