{"id":7526,"date":"2020-05-11T12:41:37","date_gmt":"2020-05-11T12:41:37","guid":{"rendered":"https:\/\/cloudkul.com\/blog\/?p=7526"},"modified":"2020-05-11T14:23:47","modified_gmt":"2020-05-11T14:23:47","slug":"what-is-a-vpn","status":"publish","type":"post","link":"https:\/\/cloudkul.com\/blog\/what-is-a-vpn\/","title":{"rendered":"What is a VPN?"},"content":{"rendered":"\n

These days VPNs are really popular,\u00a0as most of the companies started working from homes, all over the world due to the covid-19 pandemic.<\/p>\n\n\n\n

Significant hike in work from home introduced an exploitable opportunity for attackers as there is a spike in remote login credentials to organization internal application & resources. <\/p>\n\n\n\n

And to ensure secure connectivity, confidentially transmission of sensitive information and overall encrypted communication with companies resources VPNs are widely in use.<\/p>\n\n\n\n

What is a VPN?<\/strong><\/p>\n\n\n\n

A VPN (Virtual Private Network) is private network constructed within a public network infrastructure, like Internet.<\/p>\n\n\n\n

Through vpn we can ensure a encrypted connection over the internet between the device and the network. It allows remote users and branch offices to securely access corporate applications and other resources. <\/p>\n\n\n\n

By encrypted connection we mean safe communication and safely transmission of sensitive data. VPN not only provides secure channel to communicate it also prevents unauthorized actors from eavesdropping <\/a>on the traffic. <\/p>\n\n\n\n

To securely gain the access to private network via VPN , and to validate user\/ device strong authentication methods should be used like passwords, tokens or other unique identification procedures .<\/p>\n\n\n\n

Types of VPNs<\/strong><\/p>\n\n\n\n

There are two different types of VPNs:<\/p>\n\n\n\n

1. Remote Access VPN <\/strong><\/p><\/h4>\n\n\n\n

A  remote access vpn<\/strong> allows individual users, device to establish secure connections with a remote network. <\/p>\n\n\n\n

A VPN client on a remote user’s device connects to a VPN gateway <\/a>on the organization’s network. These gateway generally requires the device to authenticate its identity. <\/p>\n\n\n\n

This is especially important when employees are using a public Wi-Fi, hotspot or other methods to access the internet and connect to their corporate network. <\/p>\n\n\n\n

After validation of device it creates a network link back to the device that allows it to reach internal network resources <\/p>\n\n\n\n

2. Site-to-site Access VPN <\/strong><\/p><\/h4>\n\n\n\n

A site-to-site VPN<\/strong> uses a gateway device to connect an entire network in one location to a network in another location. <\/p>\n\n\n\n

Example multiple branches connecting to main branch or a branch connecting to data center. <\/p>\n\n\n\n

Here End-node devices(laptop, tablets, smartphones) in the remote location do not need VPN clients as the gateway handles the connection.<\/p>\n\n\n\n

Most site-to-site VPNs connecting over the internet use IPsec.<\/a> <\/p>\n\n\n\n

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How VPNs plays an important role ? <\/strong><\/p>\n\n\n\n