All MIBs › DNS-SERVER-MIB › dnsServCounterAuthNoNames
dnsServCounterAuthNoNames
Module: DNS-SERVER-MIB
OID (symbolic): DNS-SERVER-MIB::dnsServCounterAuthNoNames
OID (numeric): 1.3.6.1.2.1.32.1.1.2.3
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description:
Number of queries for which `authoritative no such name' responses were made.
What is dnsServCounterAuthNoNames?
This counter tracks the number of DNS queries for which the server returned an authoritative 'no such name' (NXDOMAIN) response, indicating the requested domain does not exist. It helps identify invalid domain lookups or potential DNS poisoning attempts. An operator would monitor this to detect unusual query patterns or misconfigurations in DNS usage.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.32.1.1.2.3 snmpwalk -v2c -c public <target> DNS-SERVER-MIB::dnsServCounterAuthNoNames
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.32.1.1.2.3.1 snmpget -v2c -c public <target> DNS-SERVER-MIB::dnsServCounterAuthNoNames.1
OID Breakdown
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | BIANCA-BRICK-PPP-MIB |
| 1.3.6 | dod | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1 | internet | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.2 | mgmt | BKTEL-HFC862-BASE-MIB |
| 1.3.6.1.2.1 | mib_2 | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.32 | dns | DNS-SERVER-MIB |
| 1.3.6.1.2.1.32.1 | dnsServMIB | DNS-SERVER-MIB |
| 1.3.6.1.2.1.32.1.1 | dnsServMIBObjects | DNS-SERVER-MIB |
| 1.3.6.1.2.1.32.1.1.2 | dnsServCounter | DNS-SERVER-MIB |
| 1.3.6.1.2.1.32.1.1.2.3 | dnsServCounterAuthNoNames | DNS-SERVER-MIB |