I would like to exclude OpManager from triggering alarm by putting some "matching text" in SysLog monitor. So i need some help on Regex to exclude certain words / string from the syslog messages.

E.g: 

Invalid response packet from host - LINE 1

This is testing message - LINE2

How do i exclude " Invalid response packet" from triggering alarm? From the example given in help card, i can do ^(?!.* Invalid).*$ but i want it match " Invalid response packet"

After that, how do i exclude " testing message" as well? Meaning to say, i want it to exclude any messages that contains " Invalid response packet" OR " testing message"

NOTE: Is they any tools / documents i can refer?

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Regards,
Anandharaj
Sr. System Engineer (Unix / Linux)