SNMP | A Pure PHP SNMP Library

I'm working with a CyberPower PDU: https://www.cyberpowersystems.com/product/pdu/switched-ats/pdu15swhviec12atnet/

According to snmpwalk -v1 -m CyberPower_MIB_v2.9.MIB -c public 10.42.0.2 iso.3.6.1.4.1.3808, the management card model is RMCARD205 and the full model name is PDU15SWHVIEC12ATNET.

I would like to programmatically control the power to the ports, doing this via SNMP seems the most robust option. I can query the status of port 3 (say) with,

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 can see some Lua modules available for this online, (nothing via Luarocks it seems ?) all I want to do is retrieve a oid / variable value (or two) via SNMP.

I’m currently using os.execute with SNMPGet.

Does anyone have, or know where I can find a standalone block of Lua code (with no require call) that can do that ?

Many thanks

I am trying to make a regex that searches a config file for snmp-server which needs to have a group a view and a host so far i tried

I have a single table called Tags that stores a "Tag" as a row, regardless of what specific subclass they represent. Some rows represent modbus tags, some snmp, some other protocols. All classes inheriting from Tag store their data in this one table, and unused columns simply contain null values.

At the moment, I have DAO methods like, getAllModBusTags() which contains an instruction mapToBean(ModBusTag.class). Eventually all of the subclasses of Tag are fetched from the database (one fetch per protocol) and then added to an ArrayList of the supertype Tag.

My question is, is there a simple means with Jdbi to perform conditional mapping of rows so that if a row contains a specific value, it is mapped to ModBusTag.class but if a row contains a different value it is mapped to SNMPTag.class, and so on and so forth?

My end goal is to have a single select statement that fetches every tag from the database, automaps to the correct bean on a row by row basis and then stores all of these subclass beans in a List of the supertype Tag.

Example Method for Single Type:

Yesterday I tried to install Ejabberd first through souce code, and then with Ubuntu specific packages. I guess I made a mess, because now I'm getting this threatening Crash dump error.

I have an abstract EntryPoint class that looks like this:

I have a parent class EntryPoint with an abstract method to retrieve a prop that is a list of a generic type. The list is declared as protected:

EDIT: same things happens when I fork a process manually...
I'm getting some weird behavior with a Rails Job that calls a module of mine called RedisService.
I've added lib/modules to my autoload_paths but the TextService module that calls the RedisService one loses reference to it, sometimes immediately, sometimes 3 or 4 job calls in...
I've even required the module in my TextService to no avail, even added some puts to check that always show the module is defined and responds to the method I'm calling...!
Something escapes me... Here's a gist to the backtrace
Repo: https://gitlab.com/thomasbromehead/snmp-simulator-ruby-manager. ruby --version: 2.6.5 rails version: 6.1.3.1

My "service" objects: Module that calls RedisService