for the command below, does mean MIB, and the output refer to individual OID.

How can I check the detail of MIB & OID from a Linux server ? Tks

snmpwalk -v2c xxxxxxx -c xxxxx

UCD-SNMP-MIB::extOutput.1 = STRING: 4670
UCD-SNMP-MIB::extOutput.2 = STRING: 512
UCD-SNMP-MIB::extOutput.3 = STRING: 0
UCD-SNMP-MIB::extOutput.4 = STRING: 0
UCD-SNMP-MIB::extOutput.5 = STRING: /bin/cat: /tmp/apache_log_stat/all_total_size: No such file or directory
UCD-SNMP-MIB::extOutput.6 = STRING: 53
UCD-SNMP-MIB::extOutput.7 = STRING: 0
UCD-SNMP-MIB::extOutput.8 = STRING: 0
UCD-SNMP-MIB::extOutput.9 = STRING: 0
UCD-SNMP-MIB::extOutput.10 = STRING: /bin/cat: /tmp/apache_log_stat/policyaddress_total_size: No such file or directory
UCD-SNMP-MIB::extOutput.11 = STRING: 104
UCD-SNMP-MIB::extOutput.12 = STRING: 2
UCD-SNMP-MIB::extOutput.13 = STRING: 0
UCD-SNMP-MIB::extOutput.14 = STRING: 0
UCD-SNMP-MIB::extOutput.15 = STRING: /bin/cat: /tmp/apache_log_stat/budget_total_size: No such file or directory
UCD-SNMP-MIB::extOutput.16 = STRING: 0
UCD-SNMP-MIB::extOutput.17 = STRING: 47
UCD-SNMP-MIB::extOutput.18 = STRING: 337
UCD-SNMP-MIB::extOutput.19 = STRING:
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Zephyr ICTCloud ArchitectCommented:
What kind of detail are you looking for?

You can for example do something like this to see details of an OID:

# snmpwalk -v 2c -c user system

Open in new window

This will give you all the details of that OID, in that list you have for example "sysDescr.0", which you can call directly with

# snmpwalk -v 2c -c user sysDescr

Open in new window

AXISHKAuthor Commented:
The result is passed by my supervisor to get some data from Apache such as invalid request, large object request...

My question is
- how to get ?
- how to know which OID is the data that I need ... ?

Zephyr ICTCloud ArchitectCommented:
You can search OID's here, that might give you an idea on what to use in your snmpwalk,

Your specific OID refers to "extOutput", so you could try:

# snmpwalk -v 2c -c user extOutput

Open in new window

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AXISHKAuthor Commented:
To clarify my understanding,

Using your provided link :, it return
"extOutput". So, "" point to OID extOutput and the output return the subset  (UCD-SNMP-MIB::extOutput.1,  UCD-SNMP-MIB::extOutput.2 ,   UCD-SNMP-MIB::extOutput.3 ) under it, correct ?

Actually, I need to find out out each of these value represenent. Where can I get more detail. We are monitoring our Redhat Apache server...

Thanks again.
Zephyr ICTCloud ArchitectCommented:
I've answered this in your new question as well:

There's not much details to be found on OIDs, you can check the Internet for it...
Use the OIDs that are plain text. like posted here

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