Securing a New Linux Installation
http://linuxgazette.net/105/odonovan.html Linux Internet Server Security and Configuration Tutorial http://www.yolinux.com/TUTORIALS/LinuxTutorialInternetSecurity.html Install basic security tools aptitude install portsentry fail2ban denyhosts logwatch rkhunter Configure basic security tools OSSEC http://www.ossec.net/main/manual/manual-installation http://dcid.me/texts/my-ossec-setup-manual.php apt-get install gcc make libc-dev wget http://www.ossec.net/files/ossec-hids-2.6.tar.gz tar zxvf ossec-hids-2.6.tar.gz cd ossec-hids-2.6 sudo ./install.sh Select: local (if you only have one system to monitor), root@localhost, enable active response … Read more