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Substitute

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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.

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Scale Up

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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

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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

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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

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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

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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.

Defending the Baseline

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Microsoft operating systems are not necessarily regarded as the epitome of computer security, but the free Security Compliance Manager helps enforce some basic hardening measures.

In Harmony

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Many admins are responsible for heterogeneous IT environments. Those who want use the popular Bash and GNU tools under Windows can either install the Cygwin compatibility layer or try Gow, the more slender alternative.

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