Questions tagged [network-monitoring]

Network monitoring systems check and report the status of network components, so administrators are alerted by degraded performance or outages.

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How to run command when a specific network interface has low outgoing bandwidth for a specific time period?

How to run command when a specific network interface has low outgoing bandwidth for a specific time period? enp7s0 [192.168.0.101] (1/4): ============================= Incoming: ...
God of Money's user avatar
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1 answer
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Someone could help me to understand what is happening im my home network?

I've installed snort 2.9 in my Ubuntu 22.04. Since last month I discovered some strange traffic when starting a scan. I don't understand too much about pen testing or secure browsing, but this seems ...
Tekomo Nakama's user avatar
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1 answer
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monitor received TCP SYN packets by counters

trying to monitor received TCP SYN flag packets that are actually counted each and every this kind of packet received, before the connection established. currently using netstat command, but this is ...
MaliKious's user avatar
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netplan network accessibility check

Is there any way to check connectivity in netplan to check real connection state (is Internet connection alive or not)? As an example, I have a connection through LAN router (default gateway) and ...
QuAzI's user avatar
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Landing place for all prometheus alert and warning

I am interested in knowing is there something tool like which keep all Prometheus triggered alert in single place like dashboard from where i can also make link some ticketing(jira) tool etc. so if i ...
babybash's user avatar
2 votes
1 answer
729 views

Is it possible to monitor network activity on Ubuntu Server using existing built-in tools?

There are many utilities that monitor network i/o (bandwidth utilization) such as iftop, etc. However none that I'm aware of come packaged in with Ubuntu Server 20.04 cloud image and they need to be ...
Rino Bino's user avatar
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Interface restart causing unpredictable network behaviour (Ubuntu 18.04)

In my server, I have 2 public interfaces with 2 public IPs and 1 has private IP too. eno1 - 149.20.185.126 (public), 10.2.2.2 (private) eno2 - 149.20.185.54 (public) For some other work (DPDK bind) I ...
Nafiul Alam Fuji's user avatar
3 votes
5 answers
617 views

Warn when new WiFi devices on LAN network

I connect through Ethernet. But almost all other devices use WiFi. Is it possible to get a list of devices connected to my router in Ubuntu 22.04? It would be great if there is some method to get an ...
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Bash script to get the variable expansion within a section of code that requires single quotes around it [duplicate]

I have a command (snmptrap) that requires input strings to be in single quotes. Within a bash script, run this command which I need to insert a variable and expand it. I have tried numerous ...
Kevin O.'s user avatar
1 vote
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Is there a way for Conky to display the number of incoming OpenVPN connections without invoking superuser powers?

Conky is easy to set up to display incoming tcp connections in a useful way: I would like to also show incoming OpenVPN connections (udp). Is there a way to do this in Conky without using sudo? ...
Organic Marble's user avatar
-2 votes
1 answer
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Cumulative network usage of applications

I'm wondering how to see a cumulative network usage broken down by individual applications, i.e. all usage until statistics are reset? I need it to identify why all my cellular data is being consumed. ...
Andreas's user avatar
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What are these 'Remote login' and 'File sharing' icons that I'm seeing under 'Networks'?

I'm new to Linux and currently running Ubuntu 22.04 LTS. I noticed recently in the drives section of my file manager(nautilus) that there are these two icons (image below) named 'Remote Login' and '...
skekmal's user avatar
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1 vote
3 answers
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Run Terminal Commands simultaneosly on multiple systems on the same network [duplicate]

Title states the question. I have to run terminal command(s) on multiple systems at the same time. For instance, I have to run sudo apt install -y firefox on every computer on the same network. Say, I ...
La Corazón's user avatar
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1 answer
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putting `nload` output into a file

I want to generate a simple report of total network usage into a text file.(amount of total used traffic) I searched a bit and I found nload software, but when I write this command in the terminal: ...
Ali Satvaty's user avatar
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Interfaces monitoring with control

is there any web software that allows you to automatically monitor all interfaces in the local network? And will he allow them to control, need to be suspended? Thank you
ondravirag's user avatar
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1 answer
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Monitoring multiple ubuntu servers bandwidth

I have 30 ubuntu 20.04 and i need to monitor the bandwidth of all of them at the same time , is there any easy way to do this without installing apache or database on all of them? Currently im keeping ...
pooya kooran's user avatar
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1 answer
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What's the difference between address 0.0.0.0, [::] and *?

If you run something like ss -tunlp (or netstat -tunlp) you get a list of listening ports. The standard format should be <host>:<port>, eg. 127.0.0.3:5000. But you also see 0.0.0.0:<...
étale-cohomology's user avatar
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1 answer
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How to 'snoop' a wired connection?

In the 'good old days' you could run 'snoop' on a wired network connection and see the packets going by. (Before the days of switches.) I have a router that disconnected from anything other than my ...
davidledger's user avatar
2 votes
0 answers
685 views

Stop NetworkManager changing an interface in monitor mode to managed mode without turning it off

So I am working in a project in which requires me to have one interface in monitor mode and 2 in managed mode. The way I set the monitor mode in the interface is as follows: sudo ifconfig {iface} ...
Lloen's user avatar
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1 answer
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trying to add two (2) wifi monitoring in CONKY

I'm currently using this part of my conkyrc code to monitor one of my WIFI's in a CONKY widget, but I want to monitor both of the two (2) wifi devices (wlp2s0 and wlx8416f91d3f6d) - any ideas? ${font ...
The MAJOR's user avatar
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1 answer
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How can I get the Last-modified header on a https website?

I'm trying to trigger a last-modified response from a https website, but all I get is 301 Moved Permanently The above only works on websites with http and I can't figure out why it won't work for ...
NickNameNick's user avatar
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0 answers
856 views

How to Install bully - airgeddon tool

I did install airgeddon and other tools however I'm stock in installing bully I did try: sudo apt-get install bully but the result is Unable to locate package bully
Christian Cacho Mequin's user avatar
3 votes
2 answers
183 views

How to easily get all HTTPS addresses that an application connects to externally?

For those who have a firewall with highly restrictive outputs, they only need to release supposedly reliable addresses for each application, so I was wondering if there is any software or command line ...
Mr Candido's user avatar
1 vote
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Centrino Wireless-N 1000 BGN | Getting internet speed 13.5 Mb/s (connected to 270 Mb/s)

Problem Internet speed (wireless connection) on my PC is extremely poor whereas other devices (like cell phone, ipad etc.) using the same network works fine. Solutions tried so far but no luck ...
romeo1987's user avatar
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ubuntu 20.04 system hangs when starting monitor mode

I tried putting ubuntu 20.04 system in monitor mode using airmon and iwconfig, but in both ways my computer is getting hanged(wifi-RTL8723DE). How to solve this problem ?
rainyday's user avatar
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Can't install Angry ipscan in ubuntu LTS 20.4

I can't install Angry ipscan in ubuntu.When I tried to install it showed this:Error_Image But I have already installed Oracle Java JDK. Screenshot:Java_image I am not good with nmap or arp-scan & ...
Rafi's user avatar
  • 13
2 votes
1 answer
2k views

How to track Firefox's Internet Usage for each tab?

My firefox is hogging up way too much of my bandwidth but I can't seem to figure out what is consuming all that data. I have only 2-3 active tabs, the rest 50 tabs from previous reboot are on sleep. I ...
Nick's user avatar
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1 vote
1 answer
512 views

Why does Gnome System Monitor Network Graph always show '0 bits/s' as a regular user?

I am using gnome-system-monitor installed with Ubuntu 20.04, and the network graph always shows '0 bits/s', whereas the system-monitor extension (the one in my top bar) shows my actual network usage. ...
swaplink's user avatar
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1 answer
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Redirect bash output to file every 1 second

I want to redirect the output of the command tcptrack -i wlp3s0 to a log file every 1 second. For that I found this script: #!/usr/bin/env bash file="file_$((SECONDS / 10))0.txt" # ...
singrium's user avatar
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Conky setup for sessional data usage

As in the above picture, the integration for data usage is acheived by the following code ${color orange}${voffset 2}${hr 1} ${color1}Network using vnStat "-i", "-w" and &...
awestorr's user avatar
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0 answers
199 views

distinguish us.archive.ubuntu.com downtime from DNS issue

Between approximately this time: Fri Jul 3 19:31:00 UTC 2020 and approximately this time: Fri Jul 3 20:31:00 UTC 2020 I couldn't install any packages from us.archive.ubuntu.com, but otherwise my ...
Nathaniel M. Beaver's user avatar
0 votes
1 answer
112 views

Tools to Monitor particular application data consumption for a period of time [duplicate]

I am looking for a package to monitor bandwidth consumed by one particular app, e.g., the data of a Zoom meeting. i need to track that consumption. Can someone suggest any software that you know.
Dhanasekar Chellamuthu's user avatar
2 votes
1 answer
344 views

Where does nload get the bandwidth data from?

tl;dr The bandwidth usage recorded by nload (home page) is higher than what's provided by tcpdump (home page). There seems to be a difference in bandwidth usage when I run tcpdump -e -w - | pv -a >...
Binary's user avatar
  • 141
1 vote
1 answer
51 views

detect network malicious activity coming from own server

I have a VPS provider that is strictly disallows malicious activity like ssh-bruting, ddos, and such. I also have multiple users that use the single VPS machine, each allocated to one docker ...
Binary's user avatar
  • 141
14 votes
2 answers
11k views

How to stop huge consumption of internet data by Ubuntu 20.04?

For the past 5 years, I have been using Ubuntu 14.04 LTS. During that time, I didn’t face any unwanted internet data consumption issues. Recently I installed Ubuntu 20.04 LTS. I haven't installed any ...
user12207831's user avatar
1 vote
0 answers
68 views

Small data activity when plug USB drive

First of all I am not very advance linux user. Here is the situation : When I plug any USB flash drive then it sends about 156 - 300 bytes of data which I have seen at System Monitor. It also happens ...
user avatar
1 vote
0 answers
936 views

Scanning for WiFi networks - Difference between "iw" and "iw dev"

I am curious what the "dev" addition does in terms of output results or functionality of the command. sudo iw wlan0 scan vs sudo iw dev wlan0 scan
presish's user avatar
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0 votes
1 answer
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Executing commands when network goes up or down using dispatcher.d

I'm trying to get the Network Manager dispatcher to run a script when the network interface comes up or goes down. I want to execute an espeak command when the connection goes up or goes down. I can ...
Rick T's user avatar
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1 answer
233 views

Holes in network security

Ok I'm a noob on Linux. I set the ufw firewall cli and gui both to deny incoming allow out. I don't do torrents so I removed Transmission and the rdt clients as well. Today I'm looking at firewall ...
CaptnUgly's user avatar
0 votes
0 answers
923 views

How to install Veyon Client

With the need of shutting down all 34 computers from one place, I installed Veyon Master on the host computer. Now I can't connect the other clients to the host. Any Ideas? Maybe I need to install ...
Zivko Stoimcev's user avatar
2 votes
0 answers
124 views

SNMP - Disk Free - Incorrect Values

just updated Ubuntu 18.04.03 LTS and now SNMP Disk Free values are coming back incorrect. Server still responds to SNMP requests, but the values are all 0. Is this a bug in an update?
lrzuniga's user avatar
2 votes
2 answers
13k views

Since this morning the network is unreachable Ubuntu 18:04

This morning the networking in my Ubuntu 18.04 Server Edition is not working anymore : marco@pc01:$ sudo lshw -class network *-network DISABLED description: Ethernet interface product: ...
user2315094's user avatar
2 votes
0 answers
274 views

Monitor mode not working in Qualcomm QCA9377

The monitor mode is not working in QCA9377 network card in any of the Debian distributions. Is there a custom fix for this anywhere? I've so far found that the kernel integration is missing. Has ...
Saki Osive's user avatar
2 votes
2 answers
3k views

How to get network usage in percentage

I am able to get current upload and download rate, but how do I get the max upload and download rates for the network interface I am using, in *nix systems? For example, Windows shows network usage ...
Saravanabalagi Ramachandran's user avatar
0 votes
1 answer
234 views

Network activity for decision to suspend/hibernate

i have a small server (ubuntu server) which i am using on demand. Meaning it switches on from suspend on request. I was trying to find a way, using cron to put the server to sleep after 90 min of ...
Beasly's user avatar
  • 101
0 votes
1 answer
35 views

Given a MAC address, can I determine what device it is through QTerminal?

The home router webpage lists connected MAC addresses. Is there a way to determine what the device is (e.g. iPad, PS3, Nintendo Switch, Windows laptop) and info about it (e.g. name input by its user) ...
Internet User's user avatar
0 votes
0 answers
791 views

nethogs shows 0 KB although I have traffic

I am running a network related program that performs TLS handshakes with many hosts. I ant to monitor the network traffic so I used nethogs. It shows 0 KB. NetHogs version 0.8.5-2 PID USER ...
user9371654's user avatar
0 votes
1 answer
351 views

Is there a Meter to indicate current Network Activity to the xfce4-panel

I already have a meter on the xfce4 panel which indicates the current CPU load (blue themometer), the current memory load (green thermomeer) and the current swap storage load (a yellow thermometer). ...
Adalbert Hanßen's user avatar
0 votes
1 answer
141 views

xymon-4.3.28/configure.server: 94: .: Can't open build/fping.sh

I downloaded and installed all the prerequisites, and I run a configure file to build xymon. But I am getting the following error: xymon-4.3.28/configure.server: 94: .: Can't open build/fping.sh ...
user3382464's user avatar
0 votes
1 answer
997 views

How to configure xubuntu panel network to a specifc network interface

Please consider the picture below. I have installed the xfce widget for network load monitoring but in the settings there is no option to select which network adapter is uses. By occasion, system has ...
J. Doe's user avatar
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