This how-to will explain how to setup DenyHosts on a RedHat-based (RHEL 6, Centos 5.5, or Fedora 14) 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.
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How To Enable Root Login to GUI in Fedora 13
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 graphical interface when an application [...]
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