40 Linux Server Hardening Security Tips [2017 edition]

last updated in Categories Debian Linux, Howto, Linux, Monitoring, RedHat/Fedora Linux, Security, Sys admin, Ubuntu Linux

Securing your Linux server is important to protect your data, intellectual property, and time, from the hands of crackers (hackers). The system administrator is responsible for security Linux box. In this first part of a Linux server security series, I will provide 40 hardening tips for default installation of Linux system.

dnsmasq Dns Cache Software Security Update To Fix DNS Spoofing Attacks

last updated in Categories BIND Dns, CentOS, Debian Linux, fedora linux, Linux, Linux distribution, package management, RedHat/Fedora Linux, Security Alert

Red Hat has shipped a new version of its dnsmasq caching software to plug source UDP port bug. This could have made DNS spoofing attacks (CVE-2008-1447) easier. Dnsmasq is lightweight ultra fast dns cache server forwarder and DHCP server. It is designed to provide DNS and, optionally, DHCP, to a small network.