Configure REDHAT server

Install SNMP

 Install net-snmp using yum

# yum install net-snmp net-snmp-libs net-snmp-utils

Configure SNMP v3

Stop SNMP service:

systemctl stop snmpd.service

Create a new user:

~]# net-snmp-create-v3-user
Enter a SNMPv3 user name to create:
admin
Enter authentication pass-phrase:
redhatsnmp
Enter encryption pass-phrase:
  [press return to reuse the authentication pass-phrase]

adding the following line to /var/lib/net-snmp/snmpd.conf:
   createUser admin MD5 "redhatsnmp" DES
adding the following line to /etc/snmp/snmpd.conf:
   rwuser admin 
~]# systemctl start snmpd.service

Edit /etc/snmp/snmpd.conf with the following:

change this:  

rwuser admin

to this:

rwuser admin authPriv .1

Restart SNMP:

systemctl start snmpd.service

Configure Applicare

Configure a new device

1. Go to Configuration -> Manage SNMP devices.

2. Set device name (a label for the device).

3. Set the host address.

4. Set the port number (161 by default).

5. SNMP Version 3.

6. Set the user name.

7. Set the password.

8. Security Level: Authentication and encryption.

9. Encryption protocol: DES.

10. Set encryption password.

11. MIB Organization: Linux.

12. MIB Name: RedHat.

Test configuration: 

Go to Home -> Alerts.

Go to Configuration and create an SNMP alert.

Select the device created, and click on the browse folder.

Select a category and a node to see the values on the table.