If our goal is to use a VPN to access services that are not available in our country, then you must find a VPN service that has VPN servers available in several countries. In this way, if we are Spanish and we want to access a service that is only available to US citizens, we will have to look for a proxfree VPN service that will provide us with an American IP. The vast majority of VPN services tend to offer VPN servers located in different geographical locations. The more geographic points we can choose, the greater the geographical restrictions that we can jump.
Protocol used by VPN services
There are several protocols for the operation of a VPN service such as PPTP, L2TP / IPSec, Open PVN, SSTP, etc.
In terms of security we have to avoid using a VPN with the PPTP protocol. The PPTP protocol is a protocol developed by Microsoft that is too old and has security vulnerabilities. In addition, the maximum size of the encryption key will only be 128 bits.
The other two protocols are more secure and modern and are good options in terms of security and privacy. Therefore you can use L2TP / IPSec and Open VPN. In my case, I’m with Open VPN for the following reason
- It is an Open Source protocol.
- It is compatible with a multitude of operating systems.
- Although technically it is slower than L2TP / IPSec, it offers an acceptable speed and is a protocol that offers great stability.
- There are unconfirmed rumors and suspicions of characters like Edward Snowden, that the L2TP / IPSec protocol is vulnerable on the part of the NSA.
- It is a highly configurable and flexible protocol.
- Supports a large number of encryption algorithms
Algorithms and encryption keys of the VPN server
- The encryption algorithms that are used to most VPN services are AES and Blowfish with 128-bit encryption keys.
- Note: The Blowfish protocol is considered safe. However, certain weaknesses are known that could compromise them. For this reason it is better to avoid using this protocol.
- Try to avoid VPNs that offer 128-bit encryption because there are suspicions that the NSA has the means to decrypt or content with this type of keys.
- If in the hiring process they also tell you about the size of the keys for the authentication process, ensure that the keys offered are at least 2048 bits
Request of personal data
If you are worried about your privacy, do not trust a VPN service that asks for your personal data.
It is not advisable to give personal information, such as your name and address, when hiring a VPN service.
In the case that they ask for an email, use one that is completely anonymous, such as Mail2Tor.