VPN NETWORKING

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VPN

VPN is an online privacy and creating a private network from a public internet connection. When the internet was first designed the packets(chunk of data) as really possible. It creates the virtual tunnel through which data travels from one computer to another over the network. Due to this an attacker gets the way to use the client to relay attack through the VPN tunnel.

  • VPN fingerprinting.
  • username enumeration vulnerabilities
  • offline password cracking
  • lack of account lockout
  • offline password cracking

Insecure Storage of Authentication Credentials by VPN Clients

  • storing the username unencrypted in a file or registry
  • storing the password in a scrambled form
  • storing the permission s credentials.

Types of VPN

  1. PPTP: This is the most commonly and widely used VPN protocol
  2. SITE TO SITE VPN: This is similar to PPTP but there is no dedicated line for transmission for  this.it worked with hardware and software based firewall devices.
  3. L2TP: It provides not only data confidentiality but also data integrity.
  4. IPsec: It is designed for IP traffic.
  5. SSL: It can be accessed through http web browser.it create a secure session between browser and server.
  6. MPLs VPN: It was design to store and forward speed of routers.
  7. Hybrid VPN: It is highly flexible at the client as well as server level.

The VPN data which is thus transferred is called payload. A VPN can prove highly advantage for a company. It can extend connectivity to different geographical locations. The operational cost in VPN is much less when compared to traditional WAN.

PRIYANSHI VASHISTHA (2019-2023)

Computer Science Department
KIET Group of Institutions
Location: Monthly Wrap KIET Ghaziabad, Uttar Pradesh 201206, India

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