Variable Substitution
A number of the alert parameters allow you to insert a variable which will be substituted for a value when the alert happens. Here is a list.
| $host | Host name (or IP address, if no name exists). |
| $hostip | The host IP address |
| $hostdnsname | The resolved DNS name for the host |
| $year | Current Year |
| $month | Current Month |
| $day | Current day of month |
| $hour | Current hour |
| $minute | Current minute |
| $second | Current second |
| $date | Same as $year-$month-$day. |
| $time | The same as $hour$minute - note the absence of any punctuation - that's to make sure the file name is valid, if this mask is being used in a file name. |