IPSec is a suite of protocols that provides secure communication over an insecure network, such as the internet. It uses encryption to protect the data from being intercepted and read by unauthorized parties.
HTTPS is a secure version of HTTP that uses TLS to encrypt the data. However, HTTPS is only used for web traffic, while IPSec can be used for any type of traffic.
TLS is a cryptographic protocol that is used to secure communications over a network. It is often used in conjunction with other protocols, such as HTTPS.
SSH is a secure shell protocol that is used to access remote systems. It uses encryption to protect the data from being intercepted and read by unauthorized parties.
Therefore, IPSec is the best option to implement a secure connection between two different locations, as it can be used for any type of traffic.