Showing posts from December, 2014

How To Install DenyHosts on Ubuntu

What is DenyHosts? This is a python-script for the protection of  ssh server, like fail2ban, but consumes  far less memory. The script parses the log file and finds failed login attempts and  prohibits login from these IP addresses. Installation steps. Installation process is simple and contains some steps: 1. Retrieve new lists of packages sudo apt-get update 2. Installation DenyHosts: sudo apt-get install denyhosts If the process is successfully completed, you will see the information of the screen: After installation you can add your IP address in whitelist: sudo nano /etc/hosts.allow and insert following string: sshd: Where “” – your IP address And restart denyhost: sudo service denyhosts restart Configuration denyhosts. After the installation process, the DenyHosts is ready to work, but some  configuration options are noteworthy. All configuration values are in the file  /et