Questions tagged [snmp]
Simple Network Management Protocol(`snmp`) is an "Internet-standard protocol for managing devices on networks.
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questions
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Keepalived SNMP not working
Im configuring Keepalived in a RHEL 7.
It working correctly all by snmp.
snmpwalk -v2c -cpublic 10.18.0.8 KEEPALIVED-MIB::vrrpInstanceTable
KEEPALIVED-MIB::vrrpInstanceTable = No more variables left ...
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1answer
52 views
What is OID,MIB? Check transfer amount by check_snmp
I am setting snmpd and try to check by check_snmp.
snmpwalk -c public -v 2c localhost
iso.3.6.1.2.1.1.1.0 = STRING: "Linux ik1-325-22819 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019 ...
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18 views
Missing dependencies to install net-snmp
This is set up on CentOS 7
I was trying to install net-snmp via rpm (our yum wont work at all). so I gathered the following rpm packages: (all from the centos updates repository)
net-snmp
net-snmp-...
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33 views
Create custom OID in net-snmp agent
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 ...
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13 views
SNMPTRAP - Send a trap with a custom summary
I am trying to figure out how to use snmptrap command to send a trap with a custom summary to a SNMP destination.
For example, there is a script that runs on a server, and that script telnets to ...
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0answers
19 views
monitoring service on redhat server by snmp
I have a server dedicated to running syslog-ng and service crash sometimes (I don’t know why for now).
I would like to find a way to monitor this service or sending a trap when syslog-ng crashes.
...
0
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1answer
11 views
Unable to retrieve Squid OID information for monitoring proxy
I installed Squid and snmp on my CentOS 7 virtual machine and now I would like to monitor the proxy server using snmp.
The problem is that I cannot retrieve (by the snmpwalk command) any of the ...
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2answers
962 views
How can I change the net-snmp engineID
I'm using NET-SNMP 5.7.3 on Freebsd 12.1. I want to chane engineID with snmpset command.
snmpd.conf
rwcommunity private
I enter this command:
snmpset -v 2c -c private localhost e x ...
1
vote
1answer
147 views
How can I send snmp trap from freebsd
I'm on Freebsd 12. I installed NET-SNMP version 5.7.3 on my system. The problem is in sending traps. For example the link up/down does not sending trap. The config files are:
snmpd.conf
view V ...
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1answer
242 views
SNMPv3 traps in Zabbix
My question is about zabbix traps with SNMPv3 and snmptrapd service using zabbix_trap_receiver.pl. I have a switch on which I enabled SNMPv3 only, so the switch has no SNMPv1/2c rw or ro communities ...
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1answer
51 views
Identify idle or minimized process
I'm trying to know if some GUI process is idle o minimized in Linux, using Net-SNMP.
I've been doing research and as far as I know, SNMP seems to be designed for monitoring services, not processes ...
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59 views
centos 7 with adaptex and problem with snmp
I have a supermicor server with centos 7 and adaptec 6504e and i monitor all of my servers hard disks by snmp with observium, i followed the adaptec user manual for enable snmp sub agent but observium ...
1
vote
1answer
380 views
OpenNMS 24 installation in Debian Buster: unmet dependencies
Trying to install the last version of OpenNMS in the last stable version of Debian, following the official installation instructions leads to an apt error with the repositories:
root@triplecero:~# ...
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163 views
Reply with same source ip address as incoming?
I have a system with two different ip addresses on same interface. Both IPs are connected to the same network. One of them is set as the default route; a side effect of this is that if a packet comes ...
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0answers
24 views
Is there any other way to verify cpu on a remote machine besides snmp?
I am writing a script for Nagios that would be able to verify the cpu load on a remote machine
I have already this line
snmpget 127.0.0.1 -v 2c -c public .1.3.6.1.4.1.2021.11.9.0 | grep -Eo '[0-9]+$'...
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1answer
978 views
Zabbix “No Such Object available on this agent at this OID” while MIB already added
I am stuck with Zabbix Import MIB. In fact, the MIB already imported to MIB database. But, it still alerts: "No Such Object available on this agent at this OID"
Here I show you what I did:
I am ...
1
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1answer
120 views
How can I access remote host on VM via snmp protocol?
I have two VMs installed and I want to request a snmpwalk system from one VM to another. I have two different IPs for each VM but when I write my request snmpwalk 192.168.1.32 -v 2c -c public systemI ...
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2answers
137 views
Where can I get Nagios plugin for cpu/hdd monitoring?
I have already installed nagios-plugins-contrib:
sudo apt update
sudo apt install nagios-plugins-contrib
However, there are no any cpu / hdd management plugin.
I am using a Debian VM just in case.
...
1
vote
2answers
41 views
What are Free SNMP management probes?
I have just started to learn SNMP protocols.
My colleague asks me to "understand the use of free SNMP management probes (available on the internet or in distribution supervision packages)".
...
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1answer
35 views
How can I verify the web page response using snmp? [closed]
I have just started to learn snmp protocols and notably centreon program and I need to find out how can a verify a web-page response or a web-service (in HTTP simple mode).
The only sourse I have ...
0
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1answer
531 views
keepalived + snmp = No such Object available
I'm unable to query information for keepalived status via snmp, all I get is the following error:
$ snmpwalk -v 2c -c public localhost 1.3.6.1.4.1.9586.100.5
1.3.6.1.4.1.9586.100.5 = No Such Object ...
-1
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1answer
96 views
When using the snmpstatus command, redirect any terminal output including 'Timeout: …' to a variable
I am running bash 5.0.007-1 and net-snmp 5.8-2 on an up to date arch linux.
This line collects the status of a device:
snmpstatus -c public -v1 192.168.1.240
When the device is not powered on, ie ...
0
votes
1answer
48 views
Can't access SNMP stack on rasp pi through router from WAN
Background
I am running the following
On my laptop the very latest version of arch linux with all the latest updates. It is from this laptop that I am querying an SNMP stack on a rasp pi
$ uname -...
2
votes
0answers
132 views
Get all writable OIDs from snmpwalk
It's easy to do a snmpwalk to get a list of all the valid OIDs for a system. How can I tell which of those OIDs are read only, and which are writeable?
$ snmpwalk -v1 -c testing 256.256.256.256
...
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0answers
306 views
iptables prerouting to multiple ports
I want to redirect SNMP traps.
Let's say, receive an SNMP trap on UDP port 162, and redirect the package to ports 10162 and 20162 (both of them). How can I achieve this using iptables?
I can ...
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0answers
36 views
snmptrap - further confusion
I received really useful advice on this post:
Here
I fiddled with it some more and right now I've only got one box to work with. I opened two sessions, one of which I want to view the traffic dump, ...
0
votes
1answer
345 views
snmptrap - underlying config?
I'm trying to get my Ubuntu LTS 16.04 server to send SNMPTraps to my HP OVO server.
The reason for this is that there are legacy devices on the network that cannot send an SNMP warning upon failure, ...
-1
votes
1answer
2k views
Configuring SNMP Traps
I've got an Ubuntu LTS 16.04 Server that I want to act as a Manager. There will be a few hundred Multiplexer devices which need to forward traps to the Manager's IP.
I can't seem to find any SNMP ...
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0answers
129 views
snmpd conf extend : set fixed value instead of execute external script
We have a monitor application, reading info thru snmp.
This app expects to gather some values from snmp extensions, via "extend".
On the monitored hosts, for various reasons (security, performance), ...
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1answer
808 views
How to trace snmp trap sent by client process?
We have a process(should be a client program) on RHEL 7.4 that send snmp traps to a Solaris server that has trap receiver process(should be a server program listening on 162/1691) on other machine(...
2
votes
2answers
11k views
SNMP - No Such Object available on this agent at this OID
I installed a snmpd into a CentOS 7 minimal installation for system parameters search, for instance:
snmpget -v 2c -c public 127.0.0.1 .1.3.6.1.2.1.2.2.1.2
for the above command I get the following ...
0
votes
1answer
884 views
How to route all snmp request to remote deivces from a local machine through a proxy server
I have to forward all snmp request to remote deivces from a local machine to proxy server. Is it possible ?
The actual requirement is like i have set of network devices that are only accessible ...
1
vote
1answer
206 views
SNMPTRAPD on RHEL 6
So getting it up and running isn't the problem and receiving traps work fine, however, none of them are being translated despite the fact that I've installed the mibs. I have confirmed that the mib ...
0
votes
1answer
2k views
tcpdump tracing UDP packets
On redhat linux box, I am trying to trace the snmp traps coming from IP a.b.c.d, as shown below:
sudo /usr/sbin/tcpdump src host 142.125.248.36 and udp dst port 162 -w /home/user1/troubleshoot.pcap
...
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1answer
338 views
Reset net-snmp? I've forgotten the initial user password
I created an SNMP initial user several years ago for a project and have forgotten the password. Is there a way to reset net-snmp back to default, no users, and recreate the initial user and subsequent ...
0
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1answer
372 views
Extracting specific data from SNMP
I've completed an SNMP poll to get different licenses from my routers. I've successfully polled the information; I now want to be able to present it. A snapshot of the output I have is:
SNMPv2-SMI::...
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vote
1answer
521 views
Why is /proc/net/snmp not showing Udp InCSumErrors?
I'm running Oracle Linux 6.5, kernel 2.6.32-431.5.1.el6.x86_64.
When I look at the Udp snmp stats it does not show me InCsumErrors. How can I see this stat?
cat /proc/net/snmp | grep Udp\:
Udp: ...
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vote
1answer
275 views
Service snmpd calls gettimeofday syscall too many times
Recently I am facing an issue with snmpd service. I have a Linux box running CentOS 6.9, when I issue an snmpwalk on localhost usually all I get is a timeout, then I try adding a timeout value of 10 ...
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0answers
530 views
How to make /proc/net/arp accessible?
The snmpd service on my debian system doesn't deliver traffic information of the network adapters. I found the following message in the syslog:
snmpd: Cannot open /proc/net/arp
When I execute now "...
0
votes
1answer
958 views
snmptt running as non-root, writting to file as root
I'm running snmptt as a SNMP trap handler for snmptrapd, with the aim being to write to a trap file that can be read and processed by Zabbix.
I have set up snmptt to run as the zabbix user by ...
0
votes
1answer
96 views
CentOs DISMAN-EVENT-MIB_mteTrigger not fired when average load thresholds are breached
I'm using CentOS OS with the following SNMP config.
###### CPU load monitoring ########
load 12 10 5
monitor -r 60s -o laNames -o laErrMessage "laTable" laErrorFlag !=0
When I increase the load (...
0
votes
1answer
283 views
Where does SNMP OIDs get the data from?
If I want to find out network traffic on my Linux Servers using SNMP. I use the ifOutOctets. and ifInOctets. OIDs in an snmpget request. Where do these OIDs get the data from?
I tried looking at the ...
4
votes
1answer
11k views
How to configure snmptrapd to process incoming traps from a Juniper device?
I have a CentOS server (7.2). I am trying to configure this as a SNMP trap receiver.
In my snmptrapd configuration, I am calling a very basic shell script just to identify if the trap was received:
[...
0
votes
1answer
1k views
Python and snmpset with netsnmp
On the linux command line, centos 7, I can to do this to change an snmp setting on a device.
snmpset -v 2c -c private 172.16.1.2 .1.3.6.1.2.1.1.5.0 s new_name
With python and netsnmp I can read the ...
2
votes
0answers
3k views
SNMP query the network range for multiple OIDs
I looked for any SNMP scanner tool for Linux that can SNMP query an IP range for multiple OIDs and return results (if found), but didn't find anything.
I have SNMP installed on Ubuntu, is it ...
1
vote
1answer
1k views
Debian stretch: upgrade of `snmpd` giving an error
During the latest security upgrades, snmpd was upgraded to 5.7.3.
Before finishing the procedure, apt-get upgrade starting giving the error:
Starting SNMP services::Bad user id: snmp
snmpd is ...
0
votes
1answer
5k views
Bash script to parse SNMP output
I am working on monitoring a Cisco device where I would need to parse the snmp output and print it in separate more verbose lines.
Through the command line I can do this:
snmpwalk -m /usr/share/snmp/...
6
votes
2answers
12k views
Nmap scan for SNMP enabled devices
Nmap scanning network for SNMP enabled devices:
sudo nmap -sU -p 161 --script default,snmp-sysdescr 26.14.32.120/24
I'm trying figure out how make that nmap return only devices that have specific ...
1
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0answers
116 views
snmpd configuration + how to set snmpd correctly
Regarding the following snmpd.conf file:
more /etc/snmp/snmpd.conf
rocommunity bingo 127.0.0.1
rocommunity bingo server18
rocommunity bingo server19
syscontact server3
syslocation UNKNOWN
...
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0answers
491 views
Incorrect used memory result by snmp hrSWRunPerfMem
We have few Esxi 5.0 server (with 64GB memory in each srvr) & snmp is enabled. As per my research there is no oid for used/available memory OID, it have only hrMemorySize.0.
Therefore in order ...
