EV Observe - Configure SNMP Traps Monitoring Prerequisites

Last modified on 2022/08/11 19:13

SNMP traps contain information sent from a monitored host to a monitoring server using the SNMP protocol.

Trap definition files are used to define the actions to be performed when a Box receives an SNMP trap.

To use service templates based on SNMP traps, specific prerequisites must first be met.

  • You configure these prerequisites once only.
  • This is done in two steps:
    • Configure the Box to receive SNMP traps
    • Create trap definition files to define the actions to be performed when an SNMP trap is received

Notes

  • You can obtain the SN-trapInstall.sh install script from the EasyVista Support team.

Procedure: How to configure SNMP trap monitoring prerequisites

Step 1: Configure the Box to receive SNMP traps

You perform the configuration using a script that will install the SNMPTT package and copy the required configuration files. A rule will be added to IPTABLES to enable the Box to receive traffic via port 162.

Prerequisites

  • You must have root access rights.
  • The Box must be able to access the Internet so that the script can install certain packets using an apt-get install.
  • Caution: The apt-get install command may cause malfunctioning issues in MS SQL services. If this is the case, you should run the command below to delete the symbolic link.

rm /usr/local/lib/libgmp.so.10

1. Install the archive required for configuring the Box.

  • Go to the TOOLS section in the folder containing the masters.
  • Download the file called SN-trapInstallation-v3.tar.gz to the Box /tmp folder.
  • Run the commands below to extract the files from the archive.

cd /tmp
tar -xzf SN-trapInstallation-vX.tar.gz

The snmptrapd, snmptrapd.conf and snmptt.ini configuration files will be copied to the /tmp folder.

  • Run the commands below to update libraries using the install script.

cd SN-trapInstallation-vX
apt-get update
./SN-trapInstall.sh

2. (optional): Modify the default value of the SNMP community that sends the traps.

  • Run the command below to open the snmptrapd.conf configuration file.

vim /etc/snmp/snmptrapd.conf

  • Search for the row, authCommunity execute <community>.
  • Replace the <community> value with the value of the SNMP community you want.
  • Save your modifications.
  • Run the command below to restart the snmptrad service.

systemctl restart snmptrapd

The Box can now receive SNMP traps.
 

Step 2: Create trap definition files to define the actions to be performed when an SNMP trap is received

       Open url.png See the detailed procedure

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