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CHAPTER 16: ADVANCED CONFIGURATION
The MIBs in your console server are located in /etc/snmp/mibs. They include:
TABLE 16-6. MIBS
MIB
NOTES
OG-STATUS-MIB
Contains serial and connected device status information for snmpstatusd and snmpalertd.
OG-STATUSv2-MIB
This MIB contains extended status and alerts.
OG-SMI-MIB
Enterprise structure of management information.
OGTRAP-MIB
SMIv1 traps from old MIBS as smilint will not let SMIv1 structures coexist with SMIv2.
OGTRAPv2-MIB
Updated traps.
16.5.2 CHECK FIREWALL RULES
Navigate to System > Services.
Check the SNMP dæmon checkbox for the required interface.
This allows SNMP requests through the specified interface’s firewall.
16.5.3 CHECK FIREWALL RULES
Console servers support different SNMP versions including SNMPv1, SNMPv2c and SNMPv3.
Although an industry standard, SNMP brings with it a variety of security concerns. For example, SNMPv1 and SNMPv2c offer no
inherent privacy, while SNMPv3 is susceptible to man-in-the-middle attacks. Recent IETF developments suggest tunnelling SNMP
over widely accepted technologies such as SSH (Secure Shell) or TLS (Transport Layer Security) rather than relying on a less mature
security systems such as SNMPv3's USM (User-based Security Model).
Additional information regarding SNMP security issues and SNMPv3 can be found at http://net-snmp.sourceforge.net/wiki/index.
php/TUT:Security.
Navigate to Alerts & Logging > SNMP.
FIGURE 16-1. ALERTS & LOGGING: SNMP SCREEN