All Questions
Tagged with monitoring networking
152
questions
-1
votes
2
answers
109
views
Is there a free rocky linux monitoring tool? [closed]
I am currently looking for a tool to monitor the performance of two Rocky Linux desktop computers. It should monitor aspects such as the CPU, RAM, disk, and network usage (similar to the Windows Task ...
0
votes
0
answers
85
views
Adding Aruba switch to monitoring tool via SNMP protocol
I am trying to add few aruba switches to a monitoring platform observium but failing to do so.
the coumminity string and the trap address are perfectly fine but it doesnot seem to work. It would be ...
- 35
0
votes
1
answer
108
views
Monitor of Azure Express Route
I would like to monitor our Express Route. There is a good description on how to do this on Microsoft learn: https://learn.microsoft.com/en-us/azure/expressroute/how-to-configure-connection-monitor
...
- 101
0
votes
0
answers
357
views
Causes of packet loss on multiple persistent tcp connections simultaneously?
The issue was detected while analyzing some application logs, which reported few seconds long spike periods when messages from multiple clients are received on the server with a substantial delay (up ...
- 111
0
votes
3
answers
2k
views
How to see which ports a process is using?
While testing our software, a large corporate customer was able to detect the third-party licensing software using port 137.
Up until this point we have only been aware of the license software using ...
1
vote
3
answers
1k
views
How to monitor outbound bandwidth usage in Linux?
Currently I use vnstat to monitor my bandwidth usage. What I want to achieve is to get data for making the decision whether to stay in a more expensive but unlimited cable based plan, or to switch to ...
- 111
1
vote
0
answers
1k
views
tcpdump: filtering out localhost, packets show up anyway?
I'm trying to use tcpdump to explore what on my computer talks with whom on the world wide web.
I've came this far as of yet:
lan_hosts="(hosts || to || exclude)"
local_hosts="(127.0.0....
- 36
1
vote
0
answers
914
views
Get diagnostics information from failed connect from Grafana to InfluxDB
I've tried to set-up a local Grafana instance in a Docker container and I'm trying to connect to my local InfluxDB that is running on the same machine. I can connect to InfluxDB without any issues, ...
- 179
0
votes
1
answer
813
views
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 ...
- 1
1
vote
2
answers
776
views
use nethogs in a script
nethogs is a great utility to monitor network traffic by process. However, it is "interactive" and not suitable to be used in script... How can I achieve the following using nethogs or ...
- 195
0
votes
0
answers
11k
views
Zabbix active agent can't connect to server - interrupted system call
I'm running the active Zabbix agents on all the servers in my production environment, however two of them aren't able to connect to the Zabbix server. All I've got to go on in the Zabbix logs is
...
- 159
1
vote
0
answers
50
views
Monitor Windows Server network data transfer [duplicate]
I would like to monitor the amount of data transferred (Network Out) in a Windows Server. The traffic is composed mainly of files downloaded from IIS.
Is there some software or Windows Feature that I ...
- 121
0
votes
1
answer
41
views
Programs to monitor CentOS servers and workstations?
Are there programs / solutions that would allow me to monitor the hardware, software, issues, performance, networking and I/O of approximately 100 CentOS/Rhel servers and workstations?
Google finds ...
- 1,019
2
votes
1
answer
3k
views
Microsoft Telemetry Data
I work at a large company and started digging through firewall logs to get my head around the network and what is going on. I noticed a HUGE amount of traffic going to 72.21.81.240. I cross-correlated ...
0
votes
0
answers
372
views
How to use snmp remotly with MRTG
I'm using CentOS 7 as the operating system. I'm trying to setup a client MRTG to fetch several servers informations. I don't want to install a web server on the remote server. Is there some official ...
- 227
1
vote
0
answers
50
views
Mapping network connections between servers
Sometimes I'd like an easy way to produce lists over everything a server accepts or connects to. Not what it can connect to/accept connections from (firewall rules etc) but actual connections.
I can ...
- 503
3
votes
5
answers
4k
views
How to show realtime traffic on each virtual network interface?
I have a dedicated server with a few virtual network interfaces, each mapped to a public IP address. How can I monitor the realtime traffic (in packets/s or Mb/s) of each of them, ideally on a single ...
- 4,607
1
vote
1
answer
604
views
How can I force Zabbix to warn about disaster alert after 4 attemps?
I use Zabbix 3.4 and I am trying to configure Zabbix to send an alarm only after 4 attemps. This alarm checks if the HTTP server returns 200 code.
I have tried to set up a Web Scenario, but in the ...
- 113
1
vote
0
answers
192
views
What are network errors on munin graphs?
I have an VPS running OpenVPN server, that also does have munin installed for monitorig (I've installed it not because it's a real need, but because all these graphs looks cool).
At first I've ...
- 11
1
vote
2
answers
466
views
How to interpret traceroute results
I am trying to figure out how to interpret the attached image.
First two hops are on our LAN, hops 3-5 belong to our WAN provider, while hop 6 is at our hosting provider and the hop 7 is a Windows ...
5
votes
1
answer
18k
views
How to monitor network interface utilization correctly with Telegraf, InfluxDB, & Grafana?
I have Telegraf installed on a server and it contains the following network configuration:
[[inputs.net]]
interfaces = ["eth0"]
This feeds the following metrics into InfluxDB:
bytes_recv, ...
- 2,745
-2
votes
1
answer
380
views
Differences in Installation for nagios 3/4 on Ubuntu with apt-get or build in?
I am new to nagios. I think my question is not only specific for nagios but overall regarding unix-systems.
There are many guides for Nagios Installation. Some of them use apt-get install nagios
...
2
votes
1
answer
2k
views
linux network monitoring, average MBps each 1hr
I want to monitor the average network usage for my Debian server.
Ive tried to mess with dstat, ntop and couple other programs but nothing seems to work like I want to.
Basically I want a program/...
- 141
-1
votes
2
answers
295
views
Tracing Network Usage from Specific IP Address on Centos 6
I found this article http://www.tecmint.com/command-line-tools-to-monitor-linux-performance/ but I'm kind of stuck here. I'm running a server with Centos 6.8 64bit for hosting customers. I have about ...
- 63
-1
votes
1
answer
211
views
How to use nagios to monitor a pfServer server?
I have a pfSense server set up as firewall gateway for my lab lan and dmz. Now I installed Nagios monitoring manager on a Linux server in lan and want to add a host target for the pfSense firewall. ...
-1
votes
2
answers
47
views
Software to Detect Device Missing from Network?
I have several small Android tablets that I am going to deploy in a manufacturing environment. Each one will be assigned to an individual, but I'd still like to have some way of detecting if the ...
- 36
0
votes
1
answer
59
views
Same script, same OS, same installation, failing
So I'm working with RANCID to monitor some switches and I'm using clogin now to test some modifications.
I'm working in two different computers but both of them from the office. Althought they are ...
- 1,407
3
votes
0
answers
57
views
Monitor latency by IP on a bridge-enabled host
Is there a tool which captures packets, measure latency in realtime and display it with some IP filtering options for Windows ?
My particular setup :
Internet -> Router -> Host Master -> Host Slave
...
- 131
-1
votes
3
answers
411
views
Log LAN bandwidth per IP (with command line output)
I have a local samba server and I need from which IP most bandwidth is generated. I would like to be able to pump that data do influx so I need a commandline tool giving me some sort of ...
- 67
0
votes
0
answers
1k
views
SNMP OID mappings
I am trying to get ifDescr and ifHCInOctets OID from my pfsense firewall. When I issue a Get from snmpwalk:
snmpwalk -v 2c -c xxxxx 10.1.0.41 .1.3.6.1.2.1.2.2.1.2
I receive the following output:
...
- 58
2
votes
2
answers
278
views
How to monitor quality of unreliable link over time?
We have ISP that provides us with a shoddy service. It usually works, but there are times when it works really bad, drops connections and gets awfully slow. Sadly, our contract doesn't have SLA clause ...
- 583
0
votes
3
answers
2k
views
How to use tcpdump to log only certain data in real time
I'd like to monitor network interfaces, but only log things likes errors, collisions and dropped packets and send that to stdout. Can tcpdump be configured to do this?
- 649
1
vote
2
answers
820
views
How to measure and monitor available network bandwidth without stealing network bandwidth?
Please note that I am not asking for well known usual bandwidth monitoring tools like ntop, iperf, vnstat etc.
I would like to measure periodically and reliably the max. available bandwidth of a ...
- 11
0
votes
1
answer
301
views
Keep showing old processes in nethogs
Nethogs stops showing idle processes after a while. How can I make it keep showing them?
I want to have a complete history of processes for long time. Is there any alternative to nethogs?
- 173
1
vote
0
answers
809
views
How to determine the cause of network issues of a hetzner.de dedicated server?
I've got 3 dedicated servers at hetzner.de, and I’m occasionally getting unavailability alerts for these servers, from 2 independent monitoring systems (New Relic and Pingdom) usually for all 3 server ...
- 11
2
votes
2
answers
1k
views
Method to log amount of transmitted data per each IP address in linux
I am looking for a method in linux to log the amount of data transmitted (received and sent separately) for every single IP address to which the data was sent to or received from. These statistics ...
- 133
-1
votes
1
answer
216
views
Monitor network nodes for availability [duplicate]
I'm installing a network at a factory with around 200-300 PLC's. I have looked into spiceworks and similar solutions, and all of them are more or less computer / printer minded.
What I wan't is:
A ...
- 213
15
votes
2
answers
914
views
How can I gain better insight into ISP-managed equipment (routers)?
I have a number of customers who have networking equipment managed by their ISP. This is usually in the form of an ISP-provided switch or router placed at the customer location(s).
For sites that ...
- 199k
1
vote
4
answers
3k
views
Recording network traffic peak per second every 5 Minutes
I would like to monitor my peak network usages. I already use munin to monitor network traffic in a 5 minute sample. But as we have lot of peaks of http traffic which lasts only a few seconds I want ...
- 1,601
0
votes
1
answer
176
views
Can't Reinstall Solarwinds 9.2 after installing 10.9.1 Trial version
I am having an issue I am hoping someone can help me with. I own a copy of an older version of solarwinds 9.2, I decided I wanted to give the new solarwinds version a try so I decided to download it. ...
- 113
0
votes
0
answers
221
views
What should I consider when I plan a meaningful monitoring for SNMP Switch (SG200-50)
I am currently planning the monitoring of a switch and would like to consider beforehand what I need to be closely monitored in order to obtain errors and warnings are also useful.
I have a Cisco ...
- 886
0
votes
2
answers
424
views
How to troubleshoot network from customers perspective?
We have a web application that we host that is customized for multiple customers. Each customer accesses their version of the site via their own custom subdomain. We are running into an issue where ...
- 378
-5
votes
1
answer
6k
views
OID's and MIB's for CISCO, JUNIPER and ZTE Router/ Switch devices [closed]
I want OID's and MIB's for CISCO, JUNIPER and ZTE Router/ Switch devices to monitor CM, PM & FM datas through SNMP. So Please kindly share me the details.
Also If you share dumps/files/logs ...
- 1
2
votes
0
answers
510
views
How to make Statsd talk to Ganglia on EC2 (localhost)
As per topic, Im just trying to make this simple setup work. The services are running fine, but as far as I can tell statsd doesn't send anything over to ganglia. Ganglia is working fine I guess since ...
- 153
4
votes
1
answer
13k
views
How to monitor a specific interface with mtr
So, I have two interfaces from different ISP's and I'm trying to monitor my connection using mtr.
This is the command I'm currently trying to use:
mtr --no-dns --address $MY_REAL_IP_HERE $...
- 1,550
0
votes
3
answers
344
views
Monitor HTTP usage on network from Linux free [closed]
I manage a small office network. I am looking to start monitoring/logging internet usage (website requests) for each user on a small network. All the windows clients are running through a switch to a ...
- 851
0
votes
2
answers
263
views
Linux network monitoring
on one server I'm currently experiencing strange application behavior that seems all related to network issues.
Example of problems:
applicationA detects a lost connection to serverB, but serverB ...
- 101
0
votes
1
answer
136
views
Debian network monitoring like tkinet
in earlier Debian versions there was a network monitoring tool called tkinet. It did create a network map and it pinged continuously configured resources. When something did not work, the resource in ...
- 105
4
votes
2
answers
3k
views
Long response time from server
We have a high traffic website, at peak it has 1000 concurrent users, and in minimum it has 100 users at the same time. In average it has 40,000 to 100,000 visit a day. The problem is sometimes it ...
- 281
0
votes
1
answer
232
views
Netgear FVS338 SNMP and OID
I downloaded SNMPWalk.exe and I ran the following:
snmpwalk.exe -r:192.168.2.254 -p:161 -c:"public" -os:.1.3.1.1.4.1.4526
I ended up with over 900 something OID options. How do I know what they do ...
- 6,691