General versions of Windows desktop and Windows Server come with the ICMP protocol blocked by default, meaning that it is not possible to perform ping tests. How to release ping (ICMP) in Windows Firewall First, open the Command Prompt as an administrator: We can now release the ICMPv4 and ICMPv6 protocol using the following commands
When making an SSH connection on Linux, after a few minutes of inactivity, the connection is lost. In this tutorial, we’ll teach you how to keep an SSH connection alive on Linux. We will edit the “/etc/ssh/ssh_config” file : Then simply “uncomment” or add the following lines: Restart the SSH Client:
Some Windows administrators often change the default RDP port (3389) to another port in order to prevent brute force attacks. How do I change the default RDP port (3389)? Before changing the default Remote Desktop Procol (RDP) port 3389, it is important that the new port you are going to put in IS OPEN IN
Some applications, such as ConfigServer Security & Firewall (csf), need to know which IPs are used by CloudFlare, thus preventing our server from blocking CloudFlare. Below are two lists containing CloudFlare’s IPv4 and IPv6 ranges. IPv4 list: 103.21.244.0/22 103.22.200.0/22 103.31.4.0/22 104.16.0.0/12 108.162.192.0/18 131.0.72.0/22 141.101.64.0/18 162.158.0.0/15 172.64.0.0/13 173.245.48.0/20 188.114.96.0/20 190.93.240.0/20 197.234.240.0/22 198.41.128.0/17 https://www.cloudflare.com/ips-v4 IPv6 list: 2400:cb00::/32
