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Recently, I've noticed that my Internet connection -- wireless on a public WiFi network -- has been cut off many times, and I think this may have been done maliciously or deliberately (for example, by users running Netcut on different systems).

How can I accomplish this?

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  • Is this your network? NetCut is a windows tool designed to prevent arp spoofing - what does this have to do with Linux in general and Ubuntu specifically?
    – Elliott Frisch
    Mar 12, 2014 at 17:42
  • I'm a new Ubuntu user , i am on a public network .I wish that i can stop other users (net-cut was just an example of how a windows or Unix user may cut my Internet connection ) on the same network from cutting of my connection . Sorry for my English.
    – led-Zepp
    Mar 12, 2014 at 18:21
  • Well can't you just give me a straight answer without complexing the subject ? .( I know it is a public network because it is my school's network and I'm being kicked off by other students )
    – led-Zepp
    Mar 12, 2014 at 18:34
  • We can't give you an answer without understanding the question.
    – Braiam
    Mar 13, 2014 at 13:59
  • Well i did my best with explaining my question : ( i want to protect my computer's connection from being spoofed by other users on the a network that i have the right to use it but it is not mine - a public "Wifi" - ) it is already solved by installing Arpon but i had a problem with installing Libpcap ( one of his libraries ) .I hope that i made my question very clear , if you have another solution i would like to test it . Thanks !
    – led-Zepp
    Mar 13, 2014 at 16:53

1 Answer 1

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This is a problem; let's act immediately!

You need (and should) to use a configured arpON daemon in all your personal computers and, if you are the network administrator, you can (and should) upgrade to a router with Internal Firewall and Peer Isolation.

NOTE: Always use encrypted (at least WPA) networks to have a layer of extra protection and privacy; public networks are very often insecure and you should warn immediately the administrator if you find vulnerabilities & problems, also in institutional networks.
Please note that arpON is very heavy and must be configured and tested: follow only the official guide and the man pages in your Ubuntu distribution!

Ask by commenting down here if you need more help (safety & privacy are very important) and don't forget to press the UP arrow and set as favorite if I'm of any help. ;-)
Have a nice experience,
good evening!

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    Thanks a lot !!! .Is arpon works only against tux-cut or any other ARP attacks ?
    – led-Zepp
    Mar 12, 2014 at 19:03
  • Arpon secures the entire ARP protocol, so it prevents almost any known ARP attack against your Linux/Unix machine and other Linux/Unix machine with arpon installed and well configured. Remember that - obviously - it will not secure the gateway device (ex. router, hub ecc.) but only the PCs with the daemon installed and only the ARP protocol packets between those PCs; it is not a firewall but only a network daemon. I suggest to always keep your computer updated, configure a real firewall on your PC and use safe networks.
    – Lorenzo Ancora
    Mar 12, 2014 at 19:20
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    i followed the tutorial on the link that you gave me I'm having a problem with the command " cmake ./ "Found Kernel Version 3.11.0-18-generic -- Linux Distro: Ubuntu -- Found libpthread. -- Found libdnet. -- Found libnet. CMake Error at cmake_modules/FindPCAP.cmake:39 (message): libpcap not found! Please visit tcpdump.org or see in the arpon 'INSTALL' file. Call Stack (most recent call first): CMakeLists.txt:49 (find_package)
    – led-Zepp
    Mar 12, 2014 at 22:52
  • Arpon is a good security software that requires the libpcap deep packet analysis library; you may or may not have it. If you don't (it's your case) follow this answer: 'askubuntu.com/questions/347788/…' ; IF it doesn't function visit tcpdump.org/#latest-release and download the tar.gz source package on your machine, then build it by following this basic guide: thegeekstuff.com/2012/06/install-from-source Please note that packets built from source may not be supported directly by the askubuntu community. Good luck.
    – Lorenzo Ancora
    Mar 13, 2014 at 11:43

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