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Questions tagged [traffic]

304 questions
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SonicWall traffic analysis

I have Sonic Wall PRO 2040 Standard in domain network. I need to see which pc has high bandwidth usage at the moment, for example streaming music or anti-virus trying to download update, to resolve bandwidth issue. I found in administration…
Andrija
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Is it just me or is my node down?

I find the www.doj.me very useful. I am looking for something like that but specifically for BGP Nodes. I want to write a script that tells the users if our Internet backbone is down, if if yes which backbone routes we are using. If I know the AS…
Craig
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tc prio qdisc for priorization of mysql traffic

I am struggling with tc prio qdisc for a few hours now. I have read the lartc Documentation, Examples and HowTos, but this whole thing is kinda new for me and somewhat confusing :) So this is my scenario: A couple of fileservers serving a…
Niko S P
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CentOS monitoring traffic on port

I am looking for a tool to monitor traffic on some ports of a CentOS server. On this server each service runs on a port from 3000 to 3050 and I would like to compare traffic consumption on these services; like which is the main…
philippe
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Is it possible to estimate the max number of users can access my website, based on the server configuration?

I have a dedicated server with windows server 2008 and I uploading there a website, I want an estimate number about how many concurrent users can access the website before it crash. Is that possible?, and how? and which configurations i will use to…
Amr Elgarhy
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unable to block DHCP and other traffic on INPUT chain

Here is the output of my iptables-save command. The last rule and default policy is to DROP any packets that dont match any thing. Generated by iptables-save v1.4.9 on Wed Aug 3 21:00:05 2011 *filter :INPUT DROP [0:0] :FORWARD ACCEPT [0:0] :OUTPUT…
Jasdeep Singh
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Traffic filtering for websockets

We have a websocket server that accepts connections. Unfortunately, for a reason that we have yet to identify some clients go rogue and connect/disconnect/connect... in loop at a very high frequency. This is a mess to deal with and penalizes other…
Julien Genestoux
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WireShark - Capturing Packets on Multiple IP Address (FIlter)

I'm looking for the syntax to do a capture filter on WireShark, by capturing the traffic on several (specific) IP addresses. I understand how to capture a range, and an individual IP address. However, the application I am capturing on is spread of a…
Derek
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how to separate a network for traffic

At the moment our all computers in one big LAN, it is the intention to separate the admin and edu (it's in a school) especially for traffic and less for security. How do this best? Firewall?, VLAN?, IPCop (no two green zones)?, pfsense? ... Should…
Student_CVO
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Is it feasible to poll traffic readings from Cisco switches more often than every five minutes?

Putting together a simple MRTG-like setup to monitor the load on our network switches. I've been told that Cisco switches are set up to be polled every five minutes, but we would like to get more precise readings, maybe once per minute. Is this…
Jaredk
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Per user network traffic accounting under Linux

I have several users on a computer running Linux (Ubuntu Lucid to be more specific). I need to see how much network traffic they generate on a specific interface. Iptables can match outgoing packages, so I could create chains for every user to be…
netom
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Why is my server using a well known port as source port

Is it normal that my server is requesting 8.8.8.8 dns with 22/udp as source port? How can i get it to use unregistered ports only
MeMow
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How to find a client generating traffic?

We're running SBS 2003 SP2 and I'm wondering if there's any easy way to find out were traffic during specific time is generated from? In my case, the overall traffic consumption per day is roughly 8GB. I'm not concerned about the general traffic…
mark
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Analyzing traffic by tcpdump between HAProxy server and mariadb

I was testing tcpdump too see the traffic between HAProxy server and mariadb server. These are the results: 23:07:22.328958 00:0c:29:a9:28:a8 > 00:50:56:b0:e0:ea, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 62140, offset 0, flags [DF],…
user3637971
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Monitor applications' network traffic

I just run iptraf to see many UDP traffic on eth0. How can I check which applications do the most network traffic? (Like iptraf but at application level)
Alexandru
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