Linux

A step-by-step guide to installing the Cobbler 2.6.10 network boot and provisioning server on Ubuntu 14.04, with fixes for common setup issu…

Linux performance monitoring for sysadmins: using top, htop, vmstat, iostat, and sar to track CPU, memory, disk I/O, and system load in real…

How to flash a custom Android ROM on the LG Optimus 2X to fix chronic battery drain and performance issues caused by the stock firmware.…

Shell scripting essentials for Linux sysadmins: VIM shortcuts, practical bash tips, and Unix command-line patterns that speed up day-to-day …

Setting up a local Drupal CMS development environment on Linux with Apache and MySQL, from installation to a working site ready for theme an…

How to install, configure, and secure a vsftpd FTP server on Ubuntu, covering user access controls and basic hardening for a self-hosted fil…

Understanding how a C program moves from source to executable: preprocessing, compilation, assembly, and linking explained with gcc flags an…

Useful Linux command-line tricks for sysadmins: splitting PDFs with pdftk, converting file formats, and automating repetitive file operation…

Preparing for the RHCE exam: focusing on command-line tools, hands-on lab practice, and the practical skills Red Hat tests in the performanc…

A first-time account of competing in ACM ICPC 2011: what the contest is, how to qualify for regionals, and what to expect as a first-time co…