Changes To CSF Country Blocking

Reading Time: 5 minutes Issue Have you seen this error when restarting csf? Recently MaxMind, the company that provides the IP lookup database based on country of origin for CSF, has decided to require a free license to be able to access that database now.  They had to do this, so they can conform to the new state law [ Read More ]

How to Install ConfigServer Firewall (CSF) on Ubuntu

Reading Time: 4 minutes What is a Firewall? Broadly speaking, a firewall is part of a network or server that is designed to restrict potentially malicious and unauthorized access to the hardware while still allowing outward communication from the network or server.  There are two types of firewalls; physical hardware firewalls which are devices that connect to the destination [ Read More ]

Basic DoS/DDoS Mitigation with the CSF Firewall

Reading Time: 5 minutes Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks are common threats that every publicly accessible web server faces. The purpose of such attacks, in the simplest terms, is to flood a server with connections, overloading it and preventing from accepting legitimate traffic. Attacks increasingly have become automated instead of directly targeted and [ Read More ]

How to Block Traffic by Country in the CSF Firewall

Reading Time: 3 minutes One of the most-requested features on cPanel servers is the ability to manage and filter traffic at a country level. With the ConfigServer Firewall (CSF) plugin in WebHost Manager, you can do exactly that. Country-level filtering in CSF uses the Maxmind GeoLite Country database to obtain CIDR (Classless Inter-Domain Routing) ranges for specific countries. Each [ Read More ]

How to Open a Port in CSF with WHM/cPanel

Reading Time: 3 minutes CSF (or Config Server Firewall) offers several advantages over the APF (Advanced Policy Firewall), including more robust protection against Denial of Service, SYN flood and other common attacks. One of its most appealing features is its plugin for WebHost Manager that allows you to quickly access firewall settings and common tasks through a graphical interface. [ Read More ]