![]() This puts a load on the server and requires a blocking of the attacking IP address at the firewall to protect things. Hackers are trying to get to the server via a standard accessible protocols (PTPP VPN port 1723), and then then using automated tools to try to guess the password to allow access. We have seen an increasing number of what are called brute force dictionary attacks on the VPN connections into servers. This gets a bit technical, but we’ll try to make it easy to understand. Read on for how you can help protect your server with a Sonicwall VPN connection and Intrusion protection. Recent attacks on a few of our clients have made us recommend (in some cases) an alternative VPN option to protect your server from these types of attacks. PPTP VPN connections are the most common method for users to use a VPN connection to connect to their server back at the office. We’ve been an increasing number of attacks on PPTP VPN connections.
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