----- Original Message ----- 
> So my question is why normal users audit event logs cant be captured
> as a "type=USER_TTY" , where as root logs can be captured
> similarway.
USER_TTY is sent by the process that accepts the keyboard input.  Unprivileged 
users are not allowed to send audit records (otherwise they would be able to 
fill the queue and/or the log partition, causing a DoS), so the USER_TTY record 
is discarded.

Even for unprivileged users you should have the type=TTY records, although they 
are noticeably more difficult to interpret.
   Mirek

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