iit-kgp-network

Index

• 1. VPNs
  • 1.1 Using OpenVPN
• 2. LAN
• 3. WIFI

1. VPNs

Working VPNs

• HotspotShield
• Speedify (Not free)
• ExpressVPN (Not free)
• OpenVPN hosted on DigitalOcean or AWS ec2
• TLS Tunnel (free user)
• SecureVPN (free user)
• NoCardVPN
• Psiphon
• SetupVPN
• HoxxVPN

TCP based VPNs that work on port 443 or 80 will only work.

1.1 Using OpenVPN

Step 1: Get an AWS account

⚠️ Make sure to setup the server properly at your own risk. I am not liable to any charges you receive for your mistakes. First watch video about Billing here - Billing and Terminating Instances.

Watch this video on how to create a free AWS account - Create new AWS account. Remember this step requires you to have a debit card (Mastercard, American Express or Visa).

Step 2: Create a free ec2 instance

Watch this video on how to create an ec2 instance- Creating an AWS EC2 instance.

The further 2 steps are derived from a blog, IIT KGP: Bypassing network restrictions without compromising on internet speed by Anjay Goel

Step 3: Setting Up OpenVPN Access Server:

You will need mobile hotspot for this setup. To setup OpenVPN Access Server, watch this video - Steps to create OpenVPN Server on AWS.

Please use TCP_NODELAY option if you use this vpn for gaming. Steps :

• SSH into your vpn server
• execute sudo echo "tcp-nodelay" | sudo tee -a /etc/openvpn/server.conf
• restart openvpn service using sudo systemctl restart openvpn.service && sudo systemctl restart openvpn@server.service

Step 4: Bill Management

This is a very important setup, to avoid any extra charges from your debit card. Watch this video - Billing and Terminating Instances.
Remember to use only one instance.
Remember that bandwidth is free upto 100GB per month, so its better not to waste resource on the vpn. Use it for daily usages like whatsapp, discord, etc. Prevent torrenting, etc. which can eat up resources.
Remember to check your usage weekly/biweekly as shown in the video.

If in any case you have to stop an instance forcibly, do it to be on the safe side.

2. LAN

2.1 LAN Cable :

Make sure your cable is CAT 5e and better (6, 6e, etc.) that you can get easily in TechM.

2.2 Ethernet Adapter properties :

Check if your system supports 1 Gbps connection. Check online tutorials for your operating system for that.

3. WIFI

To use Wifi on your devices :

• Select Authentication type : MSCHAPv2
• CA Certificate : Do not validate
• Identity : Your Roll number
• Password : Password set in ERP
• Anonymous Identity : Keep Blank

:warning: On some latest version of Android 11, the interface does not have option to disable Certificate Validation. Please use your laptop as Wifi-Hostpot.

Setting up router at your room :

Buy a good 300Mbps or (1 Gbps if u are rich) and then use ethernet interface to distribute internet wia the wifi interface.

• Reset the router if its not new
• Go to setup after connecting to the internet
• When asked for Connection type, select any of the following available : bridge, ethernet bridge.
• Then setup your wifi properties
• If asked for DNS settings, select automatic, otherwise use the DNS address as : 127.0.0.53

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