WireGuard is the latest VPN protocol which uses state-of-the-art cryptography and is the result of a lengthy and thorough academic process. IKEv2/IPSec provides users with peace of mind, security, stability and speed which is the reason this protocol has been adopted as a default in NordVPN’s iPhone VPN and Mac VPN. IPSec then secures the tunnel between the client and server using AES256 encryption. The ciphers used to generate Phase1 keys are AES-256-GCM for encryption, SHA2-384 to ensure integrity, combined with PFS (Perfect Forward Secrecy) using 3072-bit Diffie Hellman keys. For instance, NordVPN uses Next Generation Encryption (NGE) in its implementation of this protocol. IKEv2/IPSec offers improved security and privacy through the use of very strong cryptographic algorithms and keys. OpenVPN is currently the default protocol in all of NordVPN’s apps and the company recommends it for security-conscious users. To ensure that user data is protected, NordVPN uses AES-256-GCM encryption with a 4096-bit DH key. This protocol is also quite versatile and can be used on both TCP and UDP ports. OpenVPN is a very mature and robust piece of open source software that provides a reliable and secure VPN connection. NordVPN supports the following VPN protocols: OpenVPN, IKEv2/IPSec and WireGuard. The one you use will depends on the level of security you need and what you’re ultimately using a VPN for. NordVPN supports a number of different VPN protocols which all have their own strengths and weaknesses. These countries also like to block access to VPN services so if your regular VPN can’t get you online, an obfuscated server may help do the trick. These servers give you the freedom to visit any website in countries where the government heavily regulates the internet such as North Korea, Iran, China and others. The final server type offered by NordVPN is obfuscated servers. By connecting to one of NordVPN’s P2P servers, you secure your real IP address, protect your download speeds and encrypt all of your traffic online. Your Internet Service Provider (ISP) can also quickly detect if you’re using P2P and they may deny access to file-sharing websites or set bandwidth limits which slows down your internet speed. This helps users share large files more effectively but is not great if you’re trying to protect your privacy online. The main issue with P2P networks is that every device uploading or downloading the same file on the network can see each other’s IP address. If you want to torrent with a VPN or download a lot of content online, then connecting to a P2P server is your best option. Another great benefit to using a dedicated IP address is that the sites you connect to regularly, such as Gmail, won’t ask you to verify your account every time you connect as you’ll be using the same IP address and not a random one assigned to you. When you connect using a regular VPN server, you’re given one of many IP addresses available and these addresses are shared between everyone connecting to that server. The benefit here is that you’ll be the only person using this assigned IP address and won’t have to share it with others. Dedicated IP servers are for users who purchase their own dedicated IP address for an additional price.
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