Defining Authentication Credentials
IN THIS ARTICLE:
Using Properties to Set Credentials
LogicMonitor may require credentials (e.g. JDBC passwords, SNMP community strings, etc.) in order to collect data from your devices. You can use properties to set this information at the global, group, or device level.
Before you set properties for your devices, you should understand where to set them, which depends on how many devices that property applies to. For example, if you have the same SNMP community string set for all of your Linux devices, it doesn't make sense to go and set that as a property individually for each Linux device in your account. It may be better to instead set this community string at the account level so that it applies to all Linux devices.
Note: For strategies and instructions on where and how to set properties, see Device Properties.
The following table provides examples of common credentials that can be set:
Defining SNMP Credentials and Properties
LogicMonitor can use SNMP versions 1, 2c or 3. If your device supports 2c, it supports 64-bit counters and is preferable over version 1. SNMP version 3 adds authentication and encryption, making it more secure, but also more complicated to set up and troubleshoot.
- On an individual device, snmp.version is set by LogicMonitor to the version of SNMP which responds. LogicMonitor attempts SNMP communication initially with version 3, then 2c, and finally version 1. The highest responding version is used.
- If you want to override the default UDP 161 port, set snmp.port (defined in the table above) to reflect your SNMP port.
SNMP Versions 1 and 2c
For SNMP versions 1 and 2c, you need to set the snmp.community property (defined in the table above).
SNMP Version 3
For SNMP version 3, to communicate with authentication and privacy (referred to as authPriv security level), you need to set the snmp.security, snmp.auth, snmp.authToken, snmp.priv, and snmp.privToken properties (all defined in the table above).
If communicating with authentication only (no privacy), referred to as authNoPriv, include the snmp.priv and snmp.privToken properties, but leave them blank.
SNMP version 3 also introduces support for snmp.contextName and snmp.contextEngineID. The snmp.contextEngineID value is a string used to identify the device on which the management information is hosted. The snmp.contextName identifies the individual SNMP context.