A collection of kernel and userland settings one can change to improve the security and usability of a Linux system. Targeted at Arch, but should work for other distros too.

Free Web tutorials on Linux system and network admin, including slackware, subnet, dnsmasq, dns, dhcp, postfix, dovecot, webserver, openldap, stunnel, openvpn, squirrelmail, phpldapadmin, and Virtualbox configuration

This article explains how to correctly handle filenames in Bourne shells (the primary shell of Unix/Linux/POSIX systems), based on the issues discussed in ‘Fixing Unix/Linux/Filenames’. Many programs fail to work properly on filenames that include spaces, begin with dash (-), include newlines, and so on, because developers don’t know how to do it properly. Many texts, even good ones, get this wrong.