CVPN and SSH both allow network traffic to be transmitted over a secure connection. They have similarities but also differences. This article will help you clearly understand how each technology works so you can get an easier answer to the question "Which technique should I use?".

An SSH tunnel is often similar to a poor VPN because the protocol can provide some of the same features as a VPN without the complicated server setup process. However, SSH still has some limitations.
VPN, or virtual private network, is used to connect private networks over a public network. A typical VPN use case is that a business might have a private network that has shared data, networked printers, and other important things on it. Some employees may travel and often need to access these resources remotely. However, businesses do not want to reveal important company resources publicly on the Internet. Instead, businesses can set up a VPN server so remote employees can connect to the corporate VPN. When an employee is connected to a VPN server, their computer becomes part of the corporate network. They can access data and other resources as if they had a direct physical connection to the local network.
The VPN client connects to the VPN server over the Internet and transmits all of its network traffic over a secure connection, meaning competitors cannot interfere with the connection and view sensitive business information. have a cold. Depending on the VPN, all network traffic may be sent through the VPN or only a portion of the traffic may be sent (however, usually all network traffic is set to go through the VPN).
If all browsing traffic is transmitted through the VPN, people between the VPN client and the VPN server cannot interfere with the browsing traffic. This provides information protection when using public Wi-Fi networks and allows users to geographically access restricted services so that, for example, employees can bypass Internet censorship if they are working from a country that censors the web. For websites that employees access via VPN, web browsing traffic will return to the VPN client as if it came from the VPN server.
Another important thing is, VPN works more at the operating system level than the application level. In other words, when a user establishes a VPN connection, the operating system can route all network traffic through it from all applications (although this may vary from VPN to VPN, depending on the application). depends on how the VPN is configured). They won't have to configure each application separately.
SSH
SSH or secure shell is not only designed to forward network traffic. Typically SSH is used to securely receive data and use a remote terminal session, but SSH has other functions as well. SSH also uses highly secure encryption, and users can set up the SSH client as a SOCKS proxy. Then, we can configure computer applications such as web browsers to use SOCKS proxy. Traffic enters the SOCKS proxy running on the local system, and the SSH client forwards it over the SSH connection. This process is called SSH Tunneling. It works similarly to web browsing via VPN, i.e. web traffic returns as if it came from the SSH server. Traffic between the computer and the SSH server is securely encrypted so users can browse the web over a secure encrypted connection as with a VPN.

However, an SSH tunnel does not provide as many benefits as a VPN connection. Unlike VPNs, users must configure each application to use the SSH tunnel proxy. With a VPN, all traffic will be sent through the VPN, but this is not necessarily true with an SSH tunnel. The operating system will behave as if the user is on the remote network in case of using VPN, meaning connecting to shared data on Windows will be easy. This is relatively more difficult with an SSH tunnel.
If you are worried about which technique is more secure to apply to your business, the obvious answer is VPN. You can push all network traffic on the system through it. However, if you just want a secure encrypted connection to surf the web from public Wi-Fi networks in cafes, airports, etc., then both VPN and SSH are possible because they both have secure encryption methods. high bile.
On the other hand, new users can easily connect to a VPN, but setting up a VPN server is more complicated. SSH on the other hand is simpler to set up. In fact, a lot of people will have an SSH server that they can access remotely. If you already have access to an SSH server, setting up an SSH tunnel is much simpler than setting up a VPN server. For this reason, SSH is called a “poor” VPN.
Businesses that are counting on more robust networking technology will want to invest in a VPN. On the other hand, an SSH tunnel is an easy way to encrypt traffic for single users accessing an SSH server. And its security encryption is as good as a VPN.
VPN will be the perfect solution for businesses looking for a secure network technology while SSH is suitable for individual users with access to SSH servers. However, these two techniques both use encryption methods with very high data security.