Linux
Modify SSH remote login port in Linux
Modify SSH remote login port in Linux SSH: short for Secure Shell, SSH (developed by SSH Communications Security Ltd.) is a secure protocol for remote logins. Using an SSH client, a user can connect to a server to transfer information in a more secure manner than other methods, such as Read more
Tools
Defend Your Ports with Port Scan Attack Detector (PSAD)
The Port Scan Attack Detector (PSAD) is a lightweight system daemon that is designed to work with Linux iptables/firewall code to discover suspicious traffic such as port scans, backdoors, botnet command and control communications, and more. It includes a set of vastly configurable danger thresholds, long-winded alert messages that comprise Read more