In a brute force attack, an attacker repeatedly tries different combinations of characters to guess the password of a user account. These attacks are a common and persistent threat to the security of servers and online systems. Even strong passwords can be cracked in a relatively short amount of time when these attacks can be automated and run on a massive scale.

Here are some tips for preventing brute force attacks:

1. Use Strong Passwords:

The first line of defense against brute force attacks is to use strong passwords that are difficult to guess. A strong password is typically 12 characters or more and includes a combination of uppercase and lowercase letters, numbers, and symbols. Avoid using simple or easily guessable passwords, such as "password123" or "test".

2. Limit Login Attempts:

Another way to prevent brute force attacks is to limit the number of login attempts from a single IP address. IPBan is a powerful and effective tool for preventing brute-force attacks. IPBan works when many failed login attempts come from a single IP address. In this case, IPBan automatically blocks that IP from making further attempts.

It is also simple to set up and use. This makes it an excellent option for any website or server that must be protected from these attacks.

3. Restrict access to the RDP service to Specific IP addresses:

The IP-based restriction allows administrators or organization owners to restrict access to specific services on the server to only a registered IP address range. To secure RDP connections, many administrators choose to use IP-based restrictions. This allows only specific IP addresses to connect to the RDP port.

4. Change the RDP/SSH service's default port:

Microsoft Windows OS comes with Remote Desktop Services on default port 3389. Since it is a commonly used port, it can be an easy target for brute-force attacks against remote desktops.

You can easily change RDP port 3389 to a nonstandard port on your windows VPS/Dedicated server,

5. Regularly Update and Patch Software:

Keeping your server software and installed applications up-to-date is an important part of preventing brute-force attacks. Regularly applying patches and updates can close vulnerabilities that attackers have. Regularly checking for and installing updates can help keep your computer secure and running smoothly. It's also a good idea to regularly check the websites of the software you use to see if any critical updates are available.

In conclusion, preventing brute force attacks requires a multi-layered approach. You can significantly reduce the risk of successful brute-force attacks and protect your server by taking the required actions.