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abramsss2018-05-27 17:48:09
linux
abramsss, 2018-05-27 17:48:09

How to change Passive OS Fingerprinting?

When raising a proxy on a Linux server, when you enter the browser, you are seen by the fingerprint of the OS that sends packets, the packet sizes for each OS are different (here it is described in more detail what we are talking about and packet sizes and TTL www.netresec.com/?page= Blog&month=2011-11&post=Pas...
Checking what OS you are using and what is registered in your browser (user agent) there is no difficulty prntscr.com/jn7vpx, the site shows what OS you have, if the proxies are raised on Linux then by going through them to this site, it will show that your OS is Linux, and the browser is running under Windows (here you can check https://whatleaks.com )
I tried to adjust the settings in I took both ubuntu and debian
/etc/sysctl.conf
net.ipv4.route. min_adv_mss = 256
net.ipv4.tcp_rmem = 8192 87380 16777216
net.ipv4.tcp_wmem = 6144 87380 1048576
in fact, these are settings for android, there was no effect at all.
The task is to change the size of the sent size of the MSS window to the desired size in order to be able to use the android user agent, and the finger print was also an android

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2 answer(s)
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aroun, 2018-05-31
@aroun

Passive OS FG is not only ttl and mss
. There are also other parameters, as noted above - p0f is good for experiments, and the signatures in it are easy to see.

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XaWKeR, 2021-04-26
@XaWKeR

Who needs to put the right fingerprint on the right network interface (windows, linux, android, macos, iphone, etc), please contact telegram alexandrAPI

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