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Utile  

The outstanding Netcat is often referred to as the Swiss Army Knife of networking; to say that it is versatile is the biggest understatement you will hear in a while.

Time Out  

This month, we examine a Unix system's stopwatch options.

Substitute  

Apache web servers generally use the mod_php module to run PHP programs, but the official PHP package also contains a little-acclaimed alternative by the name of PHP-FPM, which uses the FastCGI interface and has some very interesting properties.

Scale Up  

HPC has a unique set of requirements that might not fit into standard clouds. However, plenty of commercial options, including cloud-like services, provide the advantages of real HPC without the capital expense of buying hardware.

Protective Shield  

Although SELinux is designed as a shield rather than a weapon, it still makes many admins wince. This is hard to understand, however, because operation is now uncomplicated, and SE adds enormous value in terms of the security of the entire system.

Port of Entry  

If you've ever had to test the security of your servers, you've almost certainly come across the ever-flexible Nmap – used by sys admins to help protect their servers and diagnose problems.

King of Computers  

Just as subjects must obey their king, all the computers and servers in an organization should follow the administrator's commands. With Rex, you don't even need to leave your admin throne to organize this.

JugglingProjects  

Torn between the challenges of daily IT operations and ambitious projects, admins must allocate their resources wisely. One unspectacular but effective instrument that can help is the Kanban method.