Users Guide

DNS Resolution Monitoring | Actions and Adaptive CLI
632 OMNM 6.5.3 User Guide
DNS Resolution Monitoring
Perform DNS resolution monitoring actions against WBEM-enabled devices by using the following
action scripts:
•
WBEM DNS Record Check executes a dig command from the target WBEM device to query
for a DNS record against a specified host name. Inputs include a target host name, the DNS
record type, and a match string to test against the dig command results.
•
WBEM DNS Record Check (With Specified DNS) is the same as WBEM DNS Record
Check, but includes an input for the DNS server IP to execute against.
•
WBEM DNS Reverse Lookup executes a dig command from the target WBEM device to
perform a reverse lookup against an IP address. Input includes a Host Name Match field to
perform a match against the host name returned by the command.
•
WBEM DNS Reverse Lookup (With Specified DNS) is the same as WBEM DNS Reverse
Lookup, but includes an input for the DNS server IP to execute against.
NOTE:
The target WBEM device must have the dig tool installed before these commands can be executed. This
can be done in CentOs by executing the following command:
yum install bind-utils
These action scripts return a success value of 1 if the dig command’s results contain the match
string and a value of 0 if the results do not contain the match string. To determine if a change has
occurred in the DNS record, monitor this value.
The following sample monitors are seeded for
WBEM DNS actions and you can modify them as
needed:
WBEM DNS Record A Monitor
WBEM DNS Reverse Lookup Monitor
Create a WBEM DNS ACLI monitor from the Resource Monitors portlet.
1 Right-click > New.
The Select Monitor Type list is displayed.
2 Select Adaptive CLI > Continue.
The Creating New Monitor window is displayed.