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Questions tagged [snmp]

SNMP (Simple Network Management Protocol) is an Internet-standard protocol for monitoring and configuring devices on IP networks.

Simple Network Management Protocol (SNMP) is an Internet-standard protocol for monitoring and configuring devices on IP networks.

SNMP is defined by a series of IETF Requests for Comment (RFCs). There are three versions of the protocol: SNMPv1, SNMPv2, and SNMPv3. RFC 3584 is the "Best Current Practice" for handling coexistence of the three protocol versions, and provides a view of interoperability issues between the versions as well as a list of references to the various RFCs that define the different versions.

SNMP generally operates over UDP on IPv4, but several transport mappings are defined in RFC 3417.

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Grafana false positive SNMP down

NOTE: I also have Nagios running on another server that reports bandwidth warnings and up/down status. Not a single switch is alerting from this, only Grafana. Grafana version 1.14.1 I was receiving alerts every minute of all switches reporting as…
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SNMP and SQL Server, is it possible to store the alerts in sql server without using any program?

I have an old system (a legacy system) that reads SNMP messages and stores (somehow) them into a SQL server 2008 tables (or 2008r2). The system is working, however, I am clueless about how it stores into a SQL server table. Is it possible to read…
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How to write custom SNMP scripts?

I want to send data across SNMP such as VM lv paths, VM disk IO, and VM CPU & memory usage. I've been unable to find proper resources for sending the information I need. Any help is appreciated.
Collier
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How can I send vm info over snmp?

I have a script I'm using on Fedora 34 to gather basic info about VMs running on a machine such as CPU cores, memory, drive path & size, and disk IO. How can I send this information over snmp using snmpwalk? I'm aware of of libvirt-snmp but it…
Collier
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Switching APC rack PDU via SNMP

How can I switch the outlets of an APC Rack PDU (AP7920) via SNMP (Linux SNMP command tools like snmpget/snmpset) ? I can't find anything about it. I was able to walk it via: snmpwalk -v3 -a MD5 -A xxxxxxxxxxxxxx -u switch -x DES -X xxxxxxxxxxxxxx…
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best practice for device with custom and standard mibs

We have a device which has a custom MIB. But it also includes some data from standard MIBs (notably UCD) Now I could just tell my customers to load those OID seperatly or I could (this is possible if I'm not mistaken) include the MIB Tree (the parts…
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Custom MIB Textual Representation

I am an snmp beginner and have created a custom MIB and included it in snmpd.conf via pass persist. pass_persist .1.3.6.1.4.1.56947.1.1 /usr/bin/env python3 -u my_script.py While I can successfully query the data, the returned data is a mix between…
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SNMP Network traffic difference between ifInOctet and ifHCInOctet

I try to monitor some Cisco 2960x Switch devices and I know there are the SNMP OID's ifInOctets (32-bit Counter) and ifHCinOctets (64-bit Counter). Can someone explain me whats the difference between those Counters and which one I should use for a…
sno0z3
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Checking Hard Disks working on Dell ESXi server using SNMP from Linux

I want to use SNMP, preferably over an SSH tunnel, to check whether the disks in my array are still working. There's 8 hard drives running behind a PERC controller on a Dell 730xd running ESXi v6. I'm using snmpwalk from a Centos server to query a…
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I have a centos server and I am trying to monitor memory via snmp but didnot got the actual result

I have a centos server and I am trying to monitor memory but didnot got the actual result. I have used Snmpwalk and used the oid of the used memory but it is returning me the value that is not matched to any parameter. The server is hosted inside…
ishwor
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How to change Nagios check_snmp configuration to use SNMP v3

I posted this on SuperUser but I realized this question is probably more relevant here. I am trying to check uptime via Nagios's check_snmp plugin on a SNMP version 3 enabled UPS. I'm able to do an snmpget call specifying version 3 with the proper…
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OID need to match exactly for SNMP to work?

I am trying to monitor a process on a Centos 7 server using SNMP, the monitoring system is Observium my collegue added proc java 10 1 to snmpd.conf and we know it's working on the server side because the snmpbulk command show snmpbulkwalk -v 2c -On…
msana
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Wich Shebang should you use in a shell sript?

Sorry, this is maybe a stupid question, but I am new to shell scripts. I have a file called oem-device-name.sh. I need to execute an external check for Zabbix: https://www.zabbix.com/documentation/5.0/manual/config/items/itemtypes/external The…
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Monitor windows print queue using snmp

I use Cacti to graph various things on my network, and I want to understand load on my print servers. Cacti uses SNMP to monitor things. Can I monitor the size of the print queue via SNMP? If so, how. I am already able to snmpwalk my print…
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How to monitor external port 161 on my router?

Port 161 on my (fairly old Ubee UVW3200) router is open. It seems to be a backdoor from the manufacturer. It is open in stealth. Starting Nmap 7.70 ( https://nmap.org ) at 2020-03-14 21:18 CET Nmap scan report for my-IP.cable.dynamic.v4.ziggo.nl…
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