Open source databases, Open source Web and application servers, Enterprise applications for Linux
Linux administration tools, Linux management and configuration, Linux interoperability, Linux licensing and support, Linux monitoring and troubleshooting, Introduction to Linux system administration
Linux enterprise desktop distributions, Linux enterprise desktop applications
Cloud computing on Linux, Linux high-performance computing and supercomputing, Linux server hardware, Linux virtualization, Linux backup and storage, Linux network administration, Open source projects in the cloud
Unix-to-Linux migration, Windows-to-Linux migration, Linux to Linux migration
Linux security risks and threats, Linux system security best practices, Linux security tools
Linux news and updates, Red Hat Enterprise Linux Server, SUSE Linux Enterprise Server, Ubuntu Server, Noncommercial Linux distributions, Oracle Enterprise Linux
crontab is a UNIX command that creates a table or list of commands, each of which is to be executed by the operating system at a specified time. crontab is used to create the crontab file (the list) and later used to change the previously created crontab file.
Also see CRON script.
Much of today’s business relies on smooth operation of Web servers. Explore these three open source tools to monitor performance, security and traffic on Apache Web servers.
Learn how to keep your Apache Web server secure by applying basic SELinux settings, including adjusting SELinux so Apache uses nondefault settings.
Red Hat Enterprise Linux 6 uses Postfix for mail transmission. Learn how to configure the open source mail server in your Linux system.
A darling of the DevOps crowd, the Opscode Chef cloud configuration and automation tool is now the central point of IT control for MercadoLibre’s sprawling online auction site.
An addendum to the ASHRAE 90.1-2010 energy standard could ease energy efficiency requirements on anyone building or significantly expanding data centers in the U.S.
A well-timed mainframe database reorg can result in much improved response.
Hyper-V 3.0 will feature new resource-monitoring capabilities, which will be a boon for multi-tenant environments that need to calculate chargeback.
VMware pros, who are under pressure to complete their VCP 5 exam before Feb. 29 to avoid additional requirements, yearn for Microsoft-style exams.
Microsoft Hyper-V 3.0 will introduce PVLANs, a new feature that uses IP address virtualization to solve the network isolation shortcomings of VLANs.
Seamless cloud application management isn’t a pipe dream. By following a few steps, cloud admins can monitor cloud app performance from one interface.
Cloud infrastructure providers attracted the attention of acquisitive suitors last year. Profitable cloud vendors this year will catch the eye of telecoms.
IBM SmartCloud services give enterprises some options to build private and hybrid clouds and may give IBM a chance to improve its lagging cloud image.
To fix your Windows memory management problems, you must first diagnose how memory is allocated. Certain Windows 7 Task Manager features can cure what ails your desktops.
Targeted malware attacks and social engineering schemes such as phishing and whaling pose a growing security threat because cybercriminals are getting help from unwitting users.
Enterprise desktop security involves many moving parts, but Group Policy settings can help. Use them to manage IE and Outlook, as well as Windows 7's Control Panel and UAC.