Submit a ticketCall us

WebinarDatabase Roundtable – Expert Database Professionals Feel Your Pain

In this video broadcast, Head Geek™ Tom LaRock is joined by Karen Lopez, Tim Chapman, and David Klee. They’ve known each other for many years, so this discussion was like four friends getting together to talk data and databases. They discussed diagnostic data collection, common performance root causes, reactive tuning versus proactive, and more. Join us for an engaging discussion on these topics! Plus, Tom LaRock will be available to answer your questions live.

Register now.

Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > DNS data in SNMP Traps

DNS data in SNMP Traps

Table of contents
Created by Richard Casey, last modified by MindTouch on Jun 23, 2016

Views: 1,157 Votes: 0 Revisions: 4

Overview

This article describes how SNMP traps will show the source IP address as well as hostname data.

Environment

All NPM versions

Steps

When a node is monitored in NPM, the DNS data is pulled from the Nodes or Nodesdata table (depending on the version).

  1. This is configured in NPM, Settings> Polling Settings> Perform reverse DNS lookup.
  2. If a node is not monitored in NPM, the Trap service runs a DNS lookup on the IP address using the server DNS settings.
  3. This is configured in c:\programfiles(x86)\solarwinds\orion\swtrapservice.exe.config file:-
    <add key="EnableDNSResolving" value="true" />
  4. If a DNS lookup is not required, this can be changed to false:-
    <add key="EnableDNSResolving" value="false" />

Note: Changes to the above config file will require the Trap services to be restarted in order to make the change.

 

Last modified

Tags

Classifications

Public