net-snmp | net-snmp repository with ocfs & ocfs2 support

I'm just moving my first steps with SNMP, I'm trying to add the output of a simple check script to SNMP but I'm facing some issues. I'm trying to add a temperature check file for a Raspberry Pi 4 to be returned via SNMP to a remote poller, but just following most of the guides online lead to me to nothing, since I'm stuck with this error every time:

No Such Instance currently exists at this OID

I'm trying using the pass function but I had no luck getting any result. Currently this is what I declared in the snmpd.conf file:

pass 1.3.6.1.2.1.25.1.8 /bin/bash /script/check_temp.sh

This is the command output:

While I am running build for CentOS based docker I am receiving following warnings

I have a RHEL7 vm setup and am trying to run mongodb. After installing I get:

I'm trying to get my head around SNMP for a project I'm working on. After I failed miserably getting it to work in my company's network, I set up a simple 3-device network to test things on, consisting of two Windows 10 PCs and a manageable switch between them.

I installed the optional feature "SNMP" on both PCs, made sure the service is running correctly and configured both services to accept SNMP queries from each other. I made sure to open up UDP port 161 in both PCs firewalls. Then I got the Net-SNMP binaries in order to use SNMPGET and SNMPWALK. As an alternative, I set up the SNMP extension for PHP through xampp (since I want to use PHP in my project once I get SNMP to work). Finally, I installed wireshark to monitor what exactly is going on and this is what I found:

When I try SNMPGET or SNMPWALK either through cmd or as a PHP command, I always get a timeout message. Wireshark is showing the get-next-request leaving one PC and arriving correctly on the other, so the network connection itself is working fine. But the receiving PC never sends a response. As I said, I'm pretty new to SNMP and I'm at a loss as to why this is happening. As I understand it, the optional feature for Windows 10 comes with its own SNMP agent, correct? If so, what could cause it to simply ignore an incoming request from a valid source IP?

The funny thing is that this even happens when I try to send an SNMP query to 127.0.0.1. I have no idea what I'm doing wrong...

I have been tinkering around with snmp recently as a means to monitoring various equipment on a LAN. The protocol itself is fairly straightforward and I have been using the net-snmp module in node js and have no problem connecting and communicating with the various kit by various manufacturers on the LAN.

As not all the equipment is made by the same manufacturer I am having to use specific object identifiers (oids) for each manufacturer to get a response that the item is on-line and available for communication. The problem I have is that each indivdual piece of equipment can at any time be removed, swapped or replaced by a different item at any time. Therefore hard programming with various manufacturers oids is not really working without having my code looping through a list of each manufacturers unique oids to see if the equipment is present. However if a new manufacturer's equipment is installed then it will obvioulsy be ignored until a responsive oid is added to my program.

I have looked online extensively and cannot find a definitive answer as the best way to solve this.

My question therefore, is there an oid that you can query for a response that is universal across all manufacturers that will respond with some sort of message, or should I persist with creating a collection of oids specific to the equipment on my network? Has anyone else out there come across this issue and how did you solve it?

On Centos, I ran into the following error:

I'm very new to snmp development, so what I want to achieve is that, I want to create an SNMP agent with custom OID using C or C++ shell on a linux machine/server. I have a PEN but I have no idea where to setup a custom OID or an MIB for that matter. I'm currently following this guide but it doesn't seem to help:

http://net-snmp.sourceforge.net/tutorial/tutorial-5/toolkit/mib_module/index.html

What I have done so far:

1. Install net-snmp.
2. Setup users and made communication between SNMP manager and SNMP agent.
3. Tried and still trying to find a solution.
4. Tried to compile and run this script http://www.net-snmp.org/dev/agent/scalar_int_8c-example.html

Any help would be appreciated.

I am looking for a tutorial/guide to help me create a custom oid ( with my own enterprise number in the oid ), custom MIB using a variable base script in snmp Agent. Most of the examples I see on the Internet like

24.6.5. EXTENDING NET-SNMP

Tut:Extending snmpd using shell scripts

uses the method in which the result from the scripts are found in OIDs like .1.3.6.1.4.1.8072.*

which means if I run

Currently, my OIDs branch from Net-SNMP using extend, which results in an OID like this:

SNMPv2-SMI::enterprises.8072.1.3.2.4.1.2.1.49.1258

or without the MIB:

.1.3.6.1.4.1.8072.1.3.2.4.1.2.1.49.1258

8072 is Net-SNMP,
49 is the decimal value of an ASCII "1" (an arbitrary name I gave my extension), and
1258 is a 'leaf' on my root OID (49).

Now that I have a PEN, how do I go about making my OID tree under my PEN so that I can execute an snmpwalk that displays:

.1.3.6.1.4.1..

OS: Linux (Raspbian)