LimeVPN

Linux - How can I circumvent VPN censorship by masking the VPN traffic?

In some countries (like China, Iran, Vietnam), the government utilizes a very restrictive firewall and enforces local ISPs to throttle &amp; block the VPN traffic via Deep Packet Inspection. You can work around that with the help of Obfsproxy by masking the VPN traffic:

Install Python’s pip tool: <code>sudo apt-get install python2.7 python-pip python-dev build-essential</code>

Install Obfsproxy: <code>pip install obfsproxy</code>

For Obfsproxy our servers listen to port TCP 5145. Open the <a href="https://www.limevpn.com/downloads/OpenVPN-Config.zip" rel="nofollow noopener noreferrer" target="_blank">.ovpn config file</a> you use to connect with any text editor and adjust line 3 from proto UDP to proto TCP &amp; port-in line 4 from 2049 to 5145. Resolve the server name specified in line 4: <code>nslookup xx.gw.ivpn.net</code> and replace <code>xx.gw.ivpn.net</code> with the IP address from the output.

In the same .ovpn file add the following lines at the bottom: <code>Socks-proxy-retry socks-proxy 127.0.0.1 1050 route xx.xx.xx.xx 255.255.255.255 yy.yy.yy.yy </code> Where “xx.xx.xx.xx” - the resolved IP address from the previous step, &amp; “yy.yy.yy.yy” - the IP address of your default gateway, which can be identified by running the following command: <code>ip route | grep default</code>

Save the changes, start Obfsproxy, and keep this Terminal window open: <code>sudo obfsproxy obfs3 socks 127.0.0.1:1050</code>

Connect to LimeVPN with the Obfsproxy applied and keep this Terminal window open: <code>sudo openvpn --config Servername.ovpn</code>

Press Ctrl+c inside each Terminal window to close the OpenVPN and obfsproxy connections when finished.

1. Install Python’s pip tool: <code>sudo apt-get install python2.7 python-pip python-dev build-essential</code> 
2. Install Obfsproxy: <code>pip install obfsproxy</code> 
3. For Obfsproxy our servers listen to port TCP 5145. Open the <a href="https://www.limevpn.com/downloads/OpenVPN-Config.zip" rel="nofollow noopener noreferrer" target="_blank">.ovpn config file</a> you use to connect with any text editor and adjust line 3 from proto UDP to proto TCP &amp; port-in line 4 from 2049 to 5145. Resolve the server name specified in line 4: <code>nslookup xx.gw.ivpn.net</code> and replace <code>xx.gw.ivpn.net</code> with the IP address from the output. 
4. In the same .ovpn file add the following lines at the bottom: <code>Socks-proxy-retry socks-proxy 127.0.0.1 1050 route xx.xx.xx.xx 255.255.255.255 yy.yy.yy.yy </code> Where “xx.xx.xx.xx” - the resolved IP address from the previous step, &amp; “yy.yy.yy.yy” - the IP address of your default gateway, which can be identified by running the following command: <code>ip route | grep default</code> 
5. Save the changes, start Obfsproxy, and keep this Terminal window open: <code>sudo obfsproxy obfs3 socks 127.0.0.1:1050</code> 
6. Connect to LimeVPN with the Obfsproxy applied and keep this Terminal window open: <code>sudo openvpn --config Servername.ovpn</code> 
7. Press Ctrl+c inside each Terminal window to close the OpenVPN and obfsproxy connections when finished.