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Ettercap Arp Poisoning, Dns Spoofing


TjeuvanBussel
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Hey all!

I am still kinda new to the networking and BackTrack stuff, so sometimes I walk into problems, and now I habe one. I am trying to spoof the dns of a website with Ettercap, and send it to my BackTrack machine running SET, just for educational purposes, so I edited the etter.dns file with my own IP adresses, and saved it, and after a few tries, it worked. But when I tried it again after dinner, with the same command (ettercap -T -q -i eth1 -P dns_spoof -M arp // //) it started as normal, but when I tried to visit the spoofed site on my other pc, it didn't want to connect, so I tried Google.com, but still no connection. So I stopped ettercap, and BAM it worked. So I have been searching for a solution, but I didn't find anything or anyone that had the same problem. Can anyone help me with this?

~TjeuvanBussel

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It could have something to do with your network card or drivers not being compatible with Backtrack.

How are you running Backtrack, in a VM or physical hardware?

Also make sure, all your software is current!

Edited by Infiltrator
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It could have something to do with your network card or drivers not being compatible with Backtrack.

How are you running Backtrack, in a VM or physical hardware?

Also make sure, all your software is current!

My BackTrack machine is a virtual machine, with a bridged connection, it had its own IP, and has no problems with running servers, Metasploit and handling Meterpreter shells, but since my first succes, the DNS spoofing won't work...

~TjeuvanBussel

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Another thing I overlooked, have you enabled IPv4 forwarding?

echo '1' > /proc/sys/net/ipv4/ip_forward

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