Now a days, the method of sharing internet from external resources has become insecure. Many persons are facing the same problem while having access through any public network for sharing their confidential information. So, some security policies have been evolved to fix it. VPN is the short form of the Virtual Private Network which can be set up worldwide according to the necessity across different public networks. With the help of VPN, we can share the data by using different public networks. But some security measures should be taken over private network to take control of the functionality, security and management policies. We can create VPN by the use of virtual tunnelling or traffic encryption through point to point connection. You can use internet safely by the help of VPN even if you are in office or on the way.
Due to its facility of network sharing, some of the personal information gets transferred which can be harmful to the use. So, VPN security allows some restrictions over sharing network publicly. As we know connections cannot be kept completely unknown/ anonymous, but we can increase our security and privacy to restrict sharing of personal information. There are two ways of preventing personal information- tunnelling protocols and encryptions so no one can find out the personal info of any individual.
Firstly, it keeps personnel info arcane/ confidential, if the network has been shared at the packet level then also the attacker can only see encrypted data. Secondly, authentication facility can be used for senders to protect personnel info. Thirdly, we can detect by the help of message integrity to find whether data had been tampered or not during the transmission. Once the users get connected to VPN use the tunnelling mechanism to secure the encrypted data. Other general security measures include that we should use firewalls to make the VPN more secure. IDS/IPS can monitor cyber-attacks in a nice way. We should download antivirus software to prevent any virus or malware before starting connection. Above all, we should not use split or gap tunnelling as it reduces the security of networks.