Questions tagged [network-traffic]

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Combine netem with pfifo_fast

I am unable to combine netem with pfifo_fast so that at the root I have pfifo_fast and then netem as sub childs on the same interface. I can afford to run sudo tc qdisc add dev <interface_name> ...
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Use netem and set pfifo(_fast) on same interface

I have a linux server where I want to configure the qdisc on an interface using netem with different parameters (loss, delay, rate) but also to set the queueing discipline to be pfifo_fast. Somehow ...
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Win 11 Pro contacting rum8.perf.linkedin.com

Why would my fresh install of Win 11 Pro, with no browser running and no "apps" installed, be making DNS lookups for rum8.perf.linkedin.com and rum18.perf.linkedin.com? Any ideas why, and ...
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How to block everything on Windows 10's firewall and slowly allow the things that I only need?

I've had just about enough with all the spying and resource usage behind my back on my Windows machine, so I've decided to consider the plausibility of first blocking all network traffic and then ...
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Is there a native Mac app that allows you to see all outbound network traffic similar to a web browser inspector?

Is there a native Mac app that allows you to see all outbound network traffic? Much in the same way I can open Google Chrome to see the network tab, I'd like to see the same for my Mac. For example, ...
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Limiting traffic to/from VM

I have a headless Ubuntu VM running on an Ubuntu host. I want to limit the VM's WAN traffic to a specific IP address range only (e.g., 156...), and if servers on that specific IP address range are ...
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1 answer
461 views

TCPView (Windows) doesn't show any addresses

I'm using TCPView 4.16 for Windows 10 (downloaded from https://docs.microsoft.com/en-us/sysinternals/downloads/tcpview). Up until a few days ago it worked fine, but all of a sudden it simply stopped ...
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How can I identity which process is sending data to a certain host on Linux?

As per title, I want to figure out the process responsible for certain traffic. I can see the traffic in wireshark, but I don't know which process it is. Is there any straightforward way to do it? I'm ...
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Capturing network traffic of a single Application/Tab

I often come across a situation where I have to analyze external communication of a Mobile or Desktop Application or even a paritcular tab of a browser. I sniff traffic usually with wireshark but at ...
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How Do I Redirect HTTP(S) Requests From a Specific Domain to a Localhost Server?

I currently have a program that requests data from a server (let's say google.com), and gets replies from that same server. This application works on many devices like Android, iOS and Windows. ...
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How to Combine Wifi and Ethernet for increased bandwidth?

I have 2 mobile phones with seperate data connections and I can connect one of them to my laptop through a USB tethering mode and the other as a hotspot connection. For example the individual ...
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Capture HTTP Referer in network traffic for whatsapp using Developer tools in Firefox

I'm using the Network traffic capture feature in developer tools in Firefox to see the network traffic generated when clicking on a link in a chat message on web version of whatsapp. However, when I ...
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My mac encounters lots of internet usage? [duplicate]

My macbook is consuming lots of internet data, but usually my work needs nearly 1 or 2 GB but it consumes 8 to 10 GB of internet data, I don't know which app is using internet in background. I can't ...
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1 answer
123 views

How to reduce Outlook 365 Cached Exchange Mode network traffic?

Working from home I noticed my Microsoft Outlook 365 Cached Exchange Mode had used ~1TB data last month! (My cable provider sent me a warning reminding me I only have 1.2TB/month!) I have tried ...
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1 answer
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Can I limit the scope of ntop to only monitor a specific connection?

I need to be able to track client data usage between their VM and an S3 compatible object storage bucket (accessed via https). I've installed ntopng community edition on the VM and right now it's ...
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1 answer
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Can Poor Wireless Performance at High Traffic Volume be resolved by high-end router?

I’m using two 2.4G wireless routers, Router 1 acts as a main router, whereas Router 2 is being used as a wireless repeater. Whenever I’m streaming on two devices simultaneously, I notice performance ...
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302 views

How to intercept a flash game's network traffic that doesn't show up in chrome's developer tools

Go to fairgocasino.com in chrome and open any game (let's take for example the first slot in alphabetical order, "5 Wishes"). Open the network tab of developer tools with rightclick -> Inspect -> ...
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How to pass Windows 10 CMD internet traffic through a VPN software?

I am using Windscribe free vpn software on Windows 10. But when I use CMD to access some data from the internet it seems it doesn't use my VPN tunnel and tries to access directly to the internet. How ...
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Block fake users & fake ip addresses from using application

I am facing some issues when it comes to application's traffic & its users. The point is that users tend to sign-up/register on my SaaS application. They use(mostly for wrong purposes) the product ...
1 vote
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351 views

The bucket size in TC-HTB

I study the behavior of tc-HTB. I did a tc setting like the below. After reading The bucket in tbf, I expect its burst size will be rate / HZ. sudo /sbin/tc qdisc del dev s1-eth1 root sudo /sbin/tc ...
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Ethernet II frames with src mac addr 00:01:02:03:04:05 after connecting to home wifi router

I'm curious about this and haven't been able to find any satisfactory answer to my question (possibly because I don't know exactly what to look for here). When I connect to my home network, I see a ...
2 votes
2 answers
382 views

How to find source of traffic to /socket.io on Win 10 desktop

I've noticed that when I run a local web server for web app development, the logs show that something is consistently trying to GET /socket.io from localhost on port 3000. Typically, I'm seeing this ...
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Slow site with fast ping, why?

Sometimes I'm using a Google service in a few browser tabs, and the Google pages all of a sudden start to load incredibly slow (dozens of seconds to start displaying the pages, such as Google results)....
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1 answer
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How to track network activty at router level?

Is it possible to track visited URL's on a home network, at "router level" - so setup is not required for on each individual device? (other than buying another router?) Most routers have a "logging" ...
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Monitoring network traffic from Microsoft Loopback Adapter

I am getting my internet connection through a Microsoft Loopback Adapter (coming from a Virtualbox), and because of loopback implementation, you can't monitor its traffic via Perfmon or Task Manager. ...
-1 votes
1 answer
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How to create a firewall that monitors all traffic [closed]

I currently have squid on Ubuntu 16.04.2 LTS. I can't figure out how to make Squid a transparent server on the network with a Asus RT-AC66U Merlin and how to make the server into a network wide ...
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1 vote
1 answer
423 views

Why route traffic through my network/VPN?

I have an OpenVPN-access server set up in a docker container on my server (which is in my apartment). One of the options it provides is to route all client traffic through the VPN This seems like it ...
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Network Traffic caused by Word 2016 during first run on Profile

Work on a campus with over 600 student computers. Completing Windows 10 upgrades with Office 2016. When students launch Word 2016 for the first time the machine starts downloading "something" from *....
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Forwarding traffic from a router through a Comcast router/modem

I don't trust Comcast to do networking for me with regards to securiry or privacy, and I need to find out how to forward my network traffic through this new closed router they gave me. What is the ...
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1 vote
1 answer
607 views

Windows 7 Hidden Process with Network Traffic

This is about Windows 7, but I am not an expert on the operating system. Someone I know recently got a brand new (less than 2 days old never used before) laptop with Windows 7. I was asked to make ...
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How to know if a user clicked a link

I have large traffic files that I'm trying to analyze statistically to check if a user clicks on links in specific sites. It is important to say that my packets are sorted by flows (IP1 <=> IP2). ...
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1 answer
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does AdvancedTomato Web Monitor 'Monitor Web Usage' also log HTTPS traffic?

I enabled this Here some example logs: zcat domain-201.....log.tar.gz (..) 2017-05-03 00:19:29 192.168.1.23 update.appwork.org 2017-05-03 05:49:17 192.168.1.23 img.youtube.com 2017-05-03 17:39:...
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Analyzing HTTP traffic [closed]

I am trying to solve the problem for a while and i couldn't find a proper answer online. I have a file with mobile traffic (from an Android device) and I am trying to check whether an http request is ...
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1 answer
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How to capture network traffic periodically, with every capture file containing full network flows

I need to dump network flow periodically on a Linux platform, ideally using the command line interface (i.e., non-GUI tools), and I want every capture file (pcap files) to contain complete flows. How ...
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1 answer
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Will 100,000 probe requests per day impact network performance?

Is it normal for Sonos devices to send ~100,000 probe requests per day? It is kind of flooding out my network analysis. I can just filter this traffic out, but before I do I wanted to find out if this ...
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1 answer
231 views

Aggregate network traffic by destination IP

The bandwidth usage of my server almost suddenly doubled from 4.5TB to 8.5TB per month. I don't see a corresponding increase in my website traffic. Is it possible to find out top network traffic ...
1 vote
1 answer
710 views

Why does ADB appear to be using the network?

I was using ADB on Windows 10 to flash firmware to an Android device via a USB cable. During the process, I was looking through the Resource Monitor, and I noticed that ADB was appearing to recieve 3....
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Network traffic (data usage) monitor for Windows 10

I want to see and analyze which processes (and and if possible, browser tabs) has used what amount of traffic. I am on Windows 10 and have the Network Meter gadget installed (relic of Windows 7), and ...
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Why is Windows Defender Antimalware at sustained high network utilization?

2016 Dell Precision 5510 laptop workstation Windows 10 Pro v1607 Build 14393.222 Core i7-6820HQ 32GB RAM This high-end workstation was taking 30 seconds to open a 1 page Word document from the ...
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NetFlow packet analyze

I configured Netflow on Cisco 7200 and Cisco send some info for my IP address. According to the screenshot (Wireshark), 172.16.98.99 is Cisco's IP address and 172.16.98.28 is my IP address (...
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682 views

How to slow down traffic with tc?

I'm on Ubuntu 14.04; I'd like to learn the basics of traffic shaping, I made a simple script that should slow down my HTTP(S) traffic to ports 80 and 443. # usage: sudo ./filename.sh #delete ...
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How to find type of device with mac address? [duplicate]

Recently, I find out that somebody uses my network traffic. I found his MAC address and now I wanna find full details of his device. I tried: http://www.macvendors.com/ and such this, but the response ...
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1k views

Monitor network trafic between two computers on the same network

I have this scenario and I need some opinions from network experts. There is a way to monitor two computers from the same network without having administrator rights on the network ? I'm am on the ...
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1 answer
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How to test outoing traffic on random ports? (I'm on OS X)

In some situations or on some locations, I'm struggling with restricted outgoing traffic. For example a restricted LAN where outgoing traffic is only allowed on limited ports. I know how to check or ...
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How do I assign network cards to specific users?

OS: Windows 10 Pro I have 2 Network connections available. First is Ethernet, second is a LTE Router via Wlan. Main goal: Route specific program traffic through the wired connection while other ...
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How to monitor a port bandwidth?

How can I monitor a specific port's bandwidth? I'm using squid cache server, and I want to find out how much bandwidth is preserved. using soft wares like DU METER it's not possible to measure that. ...
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3 answers
10k views

What does Bytes In / Out mean?

When viewing performance metrics for a computer, you might see something like "Bytes In" or "Bytes Out". What does this mean, and how does this related to "Upload" and "Download"? Is it "Bytes In = ...
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1 vote
1 answer
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Switch Trafficking

I'm running a simulation in riverbed modeler, and I've got two broadcasting domains each having one Ethernet advanced hub and 16 Ethernet advanced stations connected to it through 10BaseT links. ...
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PC cannot ping anything but some applications can browse

One PC on my network cannot ping anything. Here is the relevant troubleshooting information I've been able to gather so far: Windows firewall is off on this PC. It CAN resolve DNS to obtain IP ...
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Can I get a cumulative In and Out counter for SNMP of my CentOS Linux servers from Nagios?

My SNMP monitoring server (Nagios) has a handful of plugin files for network interface monitoring, none of which so far have really helped me, or my parameters are not correct. I am monitoring remote ...
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