When there is a VPN connection , the data is usually transferred between two or more computers on the Internet via a protected tunnel. The computers can access one another – as if they were in a local network.
Previously , virtual private networks were primarily used by companies, for instance, to safely network departments or to provide field personnel with access to the organization network. Today, VPN can be a significant service in the buyer sector, which can be primarily used to protect against attacks in public areas WLAN networks .
And because the VPN connection will certainly not become less important in times of increasing cyber threats , we’ve summarized the most crucial factual statements about the Virtual Private Network .
Virtual Private Networks: Benefits for Privacy & IT Security
Unsecured WLANs pose a security risk for users . Why? Because the attackers who are on a single network use a number of ways to ” hijack visitors ” or “hijack accounts” that usually do not utilize the https process. Some WiFi suppliers also intentionally send out ads to traffic, which can result in unwanted tracking .
Not forgetting the governments that have started to systematically monitor users in some parts of the world, block visits to specific websites, or expose tries at “high treason.” Practices that threaten independence of expression and for that reason human rights .
After establishing a VPN connection, beste internet security is routed through a protected server – anywhere in the world. This protects your personal computer from local monitoring attempts as well as from hacking attacks, along with ensuring your actual IP address is not visible to the websites and providers you visit.
VPN connections: Not absolutely all are the same
There will vary VPN technology with different encryption types . For instance, Point-to-Point Tunneling Process (PPTP) is very fast, however, not as secure as IPSec, OpenVPN, and other SSL / TLS-based protocols. For TLS-based Virtual Private Networks, the type of the encryption algorithm and the key length also play a crucial role.
While OpenVPN supports many digit combinations, important exchange protocols, and hashing algorithms , the most typical execution for VPN suppliers with regards to OpenVPN is definitely AES encryption with RSA Key Exchange and SHA signatures. We are able to recommend the following settings:
RSA key, with a amount of at least 2048 bits;
SHA-2 cryptographic hash function (instead of SHA-1).
Worth knowing here is the fact: The stronger the encryption , the stronger the effect on the connection quickness. Which VPN technology – or encryption power – is the greatest, varies from case to case and essentially depends upon what data is to be exchanged over the connection.
The security needs of businesses are, of course, very different from those of personal consumers. The latter, after all, usually have to “only” fight sniffer episodes, unless they fear mass surveillance by intelligence agencies . Then the strongest feasible encryption will be recommended.
Geoblocking and firewalls handle VPN
In the consumer sector, VPN tunnels are also frequently setup to circumvent geo-blocking actions . They are designed to limit online access to certain articles to defined regions. VPN providers typically operate server farms around the world, allowing users to toggle between their “required” IP addresses. For instance, those who do not feel like waiting around in Germany for the most recent US productions from Netflix could gain access by making use of a virtual personal network and a US server.
Nevertheless, there are other instances where circumvention of geo-blocking or firewalls can be well justified. In countries like China or Turkey , governments are blocking access to certain websites and services for political reasons. Once again, VPN tunnels are accustomed to circumvent the limitations.