This how-to will explain how to setup DenyHosts on a RedHat-based (RHEL, CentOS, or Fedora) Linux server to automatically add remote IP addresses that repeatedly fail login attempts to your server’s /etc/hosts.deny file in an attempt to block SSH brute force/dictionary attacks.
login
Starting with Fedora 10 (and continuing with Fedora 11 and Fedora 13), graphical root login was disabled by default. Allowing root login to the GUI poses a number of security risks, so doing so is not recommended. In most cases, using sudo or simply authenticating as the superuser in the […]