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ADMIN Network & Security

ADMIN Network & Security November/December 2019

ADMIN Network & Security magazine is your source for technical solutions to the real-world problems you face every day. Published six times per year, every issue includes the latest techniques for better network security, system management, troubleshooting, performance tuning, virtualization, cloud computing, and more!

Pays:
United States
Langue:
English
Éditeur:
Linux New Media
Fréquence:
Bimonthly
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6 Numéros

dans ce numéro

3 min.
is system administration bound for extinction?

Writers and tech journalists have predicted for years that the system administrator role is an endangered species, with extinction just around the corner. Are they right? Spoiler. They’re wrong. I’ve read dozens of articles over the past 10 years that predict everything from the death of the desktop computer to the extinction of my ilk (system administrator). It’s not happening. No amount of artificial intelligence, automation, cloud, or so-called zero administration efforts will ever wipe out our kind. The only thing, perhaps, that can eradicate our Administraticus systemus is multiple Chicxulub-class meteors simultaneously landing on every Amazon data center. And I’m not even sure that would do it. The reason for my positive outlook for system administrators is simple. You can’t do away with the human element in decision making – not…

1 min.
on the dvd

Canonical designed Ubuntu Server to begin with a lean initial installation, adding integrated deployment and application modeling technologies for simple deployment and management at scale. They claim that whether “you want to deploy an OpenStack cloud, a Kubernetes cluster, or a 50,000-node render farm, Ubuntu Server delivers the best value scale-out performance available.” Ubuntu Server 19.10 delivers: Support for nine months until July 2020 Linux 5.3 kernel Updates to Qemu (v4.0), libvirt (v5.4), MySQL (v8.0), PostgreSQL (v11), and more A fresh set of fixes and refreshes to the installer A new Ubuntu Advantage service experience DEFECTIVE DVD? Defective discs will be replaced, email: cs@admin-magazine.com While this ADMIN magazine disc has been tested and is to the best of our knowledge free of malicious software and defects, ADMIN magazine cannot be held responsible and…

5 min.
tech news

The Python Clock Has Almost Reached Zero As of January 1, 2020, Python 2 will reach its end of life. Originally an official date wasn’t set, but that has changed to a hard and fast deadline. There’s even a countdown clock (https://pythonclock.org/) to tick away the days, hours, minutes, and seconds before we say goodbye to Python 2. What does this mean? It means a number of critical Python projects will stop supporting version 2 and developers must begin the migration to Python 3 as soon as possible. However, there’s a catch. If you get Python from the Ubuntu repositories (for either 16.04 or 18.04), Python 2 will continue to be supported for the lifetime of those releases (regardless of the upstream status of the Python packages). This is due to Python…

15 min.
all together now

A tax-compliant archive, a data warehouse, or an enterprise resource planning (ERP) system largely processes the same data, but unfortunately with a different persistence level. Companies can no longer afford this kind of redundancy. Deepshore provides an alternative concept that draws on blockchain as an important component in its implementation and thus adds often-missed value to the overall system. Superfluity As if the sheer volume of electronic information were not already challenging enough, virtually all large companies in this country allow themselves the luxury of processing data multiple times and then storing the data redundantly. Even today, the areas of archiving, data warehouses, and ERP are still organizationally and technically isolated. IT departments do not like people seeing their hand, and setting the isolation of applications in stone does not make it…

7 min.
speedster

Nonvolatile Memory Express (NVMe)-based storage solutions are currently the fastest way to transfer data from memory to processing, which means you can use the latest generation of multicore CPUs and GPUs that require massively parallel processing capacity. NVMe is capable of accelerating databases and largescale virtual machine (VM) farms to unfold the potential of greater performance density and the advantages of shared storage. The result is significant performance advantages for demanding applications that are slowed down by previous storage technologies. The added speed ensures that website content is loaded before the viewer leaves. In complex financial transactions, a difference of microseconds can determine the gain or loss of multidigit sums. NVMe is gaining importance in all business scenarios where speed of data access directly affects revenue. Fast Interface NVMe is a next-generation interface…

6 min.
task schedulers

Most computers don’t run nonstop, not least with a view to saving electricity. However, you might still want to run some tasks automatically when you are not sitting in front of your computer: In the long run, launching a backup program manually all the time can be annoying. The classic cron scheduler lets you handle these tasks automatically, but if your PC is not running at the specified time, automatic execution is simply skipped. Therefore, it makes more sense to assign regular tasks to a scheduler that performs routine tasks as soon as the computer is switched back on. I tested the fcron [1] and hcron [2] schedulers on Fedora 29 with the Backup Manager [3] program as the test application. Installation You can pick up RPM and DEB packages for hcron on…