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So far, I have been using Windows OS and I have used netmon and Visual round trip analyzer. Now I have to shift to Linux systems.

What is the equivalent tool in a Linux environment.

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hey it would be cool if you derscribe exactly what usage you have for the tool, there are many different tools in linux with lots of functionality. For Roundtrip stuff you can use Tcpdump, otherwise i would also recommend Wireshark. –  Oliver Stutz Jun 19 '12 at 7:40
    
Wireshark looks good is there any thing that can give a graphical view like Visual Round Trip Analyzer where it shows the number of packets/requests per port? –  kumar Jun 19 '12 at 10:03
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please do not double post: serverfault.com/questions/400067/… –  Mike Pennington Jun 19 '12 at 23:27
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migrated from stackoverflow.com Jun 19 '12 at 23:21

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marked as duplicate by HopelessN00b Genius of network, Michael Hampton, mdpc, Khaled, faker Mar 12 '13 at 10:47

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8 Answers

up vote 2 down vote accepted

How about Wireshark? It's a network analyzer which can capture and display any network traffic - and it works on Windows too.

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Wireshark can load "tcpdump" files and both are based on libpcap, so why not point out both? –  0xC0000022L Mar 11 '13 at 17:38
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I am partial to iptraf, should be available in most distribution repositories!

http://iptraf.seul.org/

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That depends on what you want to get. Just a small list of tools to start from:

  • wireshark (ethereal) -- a great tool to analyze the network traffic
  • tshark — wireshark with a console interface
  • tcpdump — lightweight traffic sniffer and analyzer; almost always is installed
  • trafshow — a tool that shows you which traffic goes through an interface and where it goes
  • different netflow tools — they do the same but in more enterprise fashion
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don't forget iftop –  HTDutchy Jun 20 '12 at 12:40
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If you just want to see if there is any traffic or errors on network interfaces in real-time, then something like the following could be handy:

$ watch -d ifconfig
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Also vnstat to keep record of the usage ... –  0xC0000022L Mar 11 '13 at 17:39
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Check out ntop: http://www.ntop.org/

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As Matthew Gall responded, iptraf is always a handy tool to determine bandwidth usage on a network interface basis. Also iftop is another utility, i will recommend reading the below post. Network traffic and bandwidth monitoring in linux

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Wireshark. You should be happy with it. But remember to setup Wireshark to run as non root user: http://ask.wireshark.org/questions/7523/ubuntu-machine-no-interfaces-listed

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Wireshark is the way to go, but when you install it on Linux you may also need to install a package called "wireshark-gnome". After installation, run it by typing "wireshark" into a terminal.

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