HTun

HTun is a nifty tool that lets you set up a fully bidirectional IP VPN. It works over an HTTP proxy or just through port 80, which means you can easily bypass those annoying restrictive firewalls and use any service you want!

How HTun Works

So, how does HTun do its magic? It creates a point-to-point virtual IP network over HTTP by wrapping IP traffic into valid HTTP requests. The HTun server runs on a host with no Internet restrictions. It listens on common webserver ports like 80 or 443 and accepts connections from HTun clients.

Setting Up the HTun Client

The HTun client daemon operates within a restricted network environment, chatting with the HTun server through an HTTP proxy. This setup is super useful if you’re in a place where access is limited!

TUN/TAP Module Requirements

Now, to get started, HTun uses the Universal TUN/TAP module (tun.o) that's part of the Linux kernel. You’ll need to enable this option in your kernel configuration under “Network Device Support” and then “Universal TUN/TAP device driver support.” It's usually best to compile it as a kernel module instead of statically.

Create Your TUN Device File

You’ll also need to create the TUN device file. You can name it whatever you like, but for our example, let’s call it /dev/net/tun. Use the following command to create the device with major number 10 and minor number 200:

mknod /dev/net/tun c 10 200

Automatic Device Driver Loading

If you want the device driver to load automatically when needed, add this line into your /etc/modules.conf:
alias char-major-10-200 tun

Final Steps

After making that change, just run depmod -a. This will reconfigure your module dependencies. And there you go! You’re all set up with HTun!

If you're ready to give it a try, check out this link for more details: Download HTun Now!