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VPN Obfuscation on Linux

Updated

By default, OpenVPN traffic is recognizable as OpenVPN traffic - in some rare cases, this might not be an optimal VPN solution, where you want to hide the fact that you are connecting to a VPN, or need a last-ditch method in connecting through a very strict firewall - for example, the great firewall of China.

Here's how you can obfuscate your OpenVPN traffic on Linux:

  1. Follow the OpenVPN tutorial via Terminal here, but do not connect: https://support.nordvpn.com/hc/en-us/articles/206927749-Linux-Ubuntu-Debian-setup
  2. Instead of the configuration files used in the tutorial above, use these files: https://support.nordvpn.com/hc/en-us/article_attachments/115002024545/linux_obfs_config.zip
  3. Open your Terminal.
  4. If you are using an Ubuntu/Debian based distribution, run this command in your shell:
    sudo apt-get install python2.7 python-pip python-dev build-essential

    If you are using a CentOS/Fedora based distribution, run this command in your shell:

    sudo yum install make automake gcc python-pip python-devel libyaml-devel
  5. Run these commands to install the obfs proxy:
    pip install obfsproxy
    sudo apt install obfsproxy
  6. Run obfsproxy by typing:
    obfsproxy obfs3 socks 127.0.0.1:1050
  7. Open up a new Terminal window.
  8. Connect to any of our servers by navigating to directory they are stotred in and using this command templade (of course, replace "xxx" with the chosen configuration file prefix):
    openvpn xxx.nordvpn.com.tcp443.ovpn