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After my initial post about obfs4 on how to hide any TCP traffic and an example for hiding SSH traffic, it’s now time to do so for OpenVPN…

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In this post I’m going to give you a real example of obfs4proxy being used to obfuscate SSH traffic.

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In this post, I’m going to give you the information necessary to be able to use obfs4 protocol not just for wrapping Tor traffic, but for virtually any other TCP traffic as well.

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Fixing a PMTUD Black hole is a multistep process, and it starts with finding the correct MTU/MRU of your link. In this post, I will explain how to do just that.

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In this post, I’m going to talk about what IP fragmentation is, how it works and why it’s needed. And while learning that, we’re going to touch on subjects like OSI Layers / PDU / MTU / MRU and PMTUD.

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