Changes between Version 47 and Version 48 of AnonymityModule
- Timestamp:
- Jun 30, 2011 11:52:42 AM (13 years ago)
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AnonymityModule
v47 v48 26 26 27 27 === Direct Client-to-Server Traffic === 28 Then type the command `sudo tcpdump -i eth0 -s 0 -x -w /tmp/ tcpdump.pcap` This will begin listening to the traffic that comes through this node and that specific ethernet link, eth0 in the example, and write the data out to the file tcpdump.pcap in the tmp diretory. At this time, the person connected to Alice will enter the command `wget http://server1/cgi-bin/ip.cgi` This saves a local copy of the web page set up on the server, and by doing so generates HTTP traffic to examine. We were able to listen in on this traffic thanks to the tcpdumpcommand.28 Then type the command `sudo tcpdump -i eth0 -s 0 -x -w /tmp/direct.pcap` This will begin listening to the traffic that comes through this node and that specific ethernet link, eth0 in the example, and write the data out to the file direct.pcap in the tmp diretory. At this time, the person connected to Alice will enter the command `wget --no-proxy http://server/cgi-bin/ip.cgi`This saves a local copy of the web page set up on the server, and by doing so generates HTTP traffic to examine. We were able to listen in on this traffic thanks to the `tcpdump` command. 29 29 30 30 === Client-to-Server Traffic through a Proxy === 31 Repeat the tcpdump command `sudo tcpdump -i eth0 -s 0 -x -w /tmp/t cpdump.pcap` from the server node. However, now the user connected to Alice should enter the command `env http_proxy=http://proxy:8888 wget http://server/cgi-bin/ip.cgi` to view without the proxy enter `wget --no-proxy http://server/cgi-bin/ip.cgi`31 Repeat the tcpdump command `sudo tcpdump -i eth0 -s 0 -x -w /tmp/throughproxy.pcap` from the server node. However, now the user connected to Alice should enter the command `env http_proxy=http://proxy:8888 wget http://server/cgi-bin/ip.cgi` This command changes an environmental setting and sends the `wget` command through the proxy on port 8888. 32 32 33 33 Tor: