Networks for the most mothers. Part of the fifteenth. QoS

Networks for the most mothers. Part of the fifteenth. QoSSSSM-15. About QoS.
 
Now with the option Pull Request'ov .
 
 
And now we have reached the topic of QoS.
 
Do you know why just now and why this will be the closing article of the entire course of the SDSM? Because QoS is extraordinarily complex. The most difficult thing that was before in the cycle.
 
This is not some magical archiver, which deftly squeezes traffic on the fly and shuffles your gigabit into a hundred-gigabit uplink. QoS is about how to sacrifice something unnecessary, cramming the unintended into the framework of what is allowed.
 
QoS is so entangled in the aura of shamanism ...
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Theory and practice of using HBase

Theory and practice of using HBaseGood afternoon! My name is Danil Lipova, our team at Sbertech started using HBase as a data warehouse. In the course of his study, experience accumulated, which he wanted to systematize and describe (we hope that many will be useful). All the experiments below were carried out with versions of HBase ???-cdh??? and ???-cdh???-beta1.
 
 
 
General architecture
 
Write data to HBASE
 
Reading data from HBASE
 
Caching of the data
 
Batch processing of MultiGet /MultiPut data
 
Strategy for breaking tables into regions (spiliting)
 
Fault Tolerance, Compactification and Locality of Data
 
Settings ...
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Linux in RAM: debirf way 2018

Linux in RAM: debirf way
 
You want to have absolute disk speed? Let's see in it in 2018 with versioning and automation.
 
before run this tutorial
 
you must know
 
 
linux essential
 
difference between bash and sh (debirf writen on .sh )  
how to format usb key (any way)  
what drivers you need for your hardware (or you can debug it via dmesg | lspci )  
how to automate you desires.  

 

you can replace:


 
  •  
  • usb letter from /dev /sdb to any else ( /dev /sdd )  
  • working directory from /root ...
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Container-oriented integration testing &lt;{short}&gt; &lt;{full}&gt; <div class="post__text post__text-html js-mediator-article"> Integration testing remains an important part of the CI /CD production cycle, including in the development of container ap

<{full}>
Integration testing remains an important part of the CI /CD production cycle, including in the development of container applications. Integration tests, as a rule, are not very long, but very resource-intensive workloads. Let's see how you can combine the technologies and tools of integration testing with container orchestration tools (in particular, with 3r3r3? Red Hat OpenShift
), In order to speed up testing, increase its dynamism, and use resources more efficiently.
 
 
Container-oriented integration testing    Integration testing remains an important part of the CI /CD production cycle, including in the development of container applications. Integration tests, as a rule, are not very long, but very resource-intensive workloads. Let's see how you can combine the technologies and tools of integration testing with container orchestration tools (in particular, with 3r3r3? Red Hat OpenShift  ), In order to speed up testing, increase its dynamism, and use resources more efficiently.    
    
     
    
 We will create integration BDD tests (    Integration testing remains an important part of the CI /CD production cycle, including in the development of container applications. Integration tests, as a rule, are not very long, but very resource-intensive workloads. Let's see how you can combine the technologies and tools of integration testing with container orchestration tools (in particular, with 3r3r3? Red Hat OpenShift  ), In order to speed up testing, increase its dynamism, and use resources more efficiently.    
    
     
    
 We will create integration BDD tests (
 
 
We will create integration BDD tests ( <{short}>Integration testing remains an important part of the CI /CD production cycle, including in the development of container applications. Integration tests, as a rule, are not very long, but very resource-intensive workloads. Let's see how you can combine the technologies and tools of integration testing with container orchestration tools (in particular, with 3r3r3? Red Hat OpenShift), In order to speed up testing, increase its dynamism, and use resources more efficiently.    We will create integration BDD tests ( Integration testing remains an important part of the CI /CD production cycle, including ...
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Almost OCR for getting the VPNBook password. PHP + Mikrotik

Recently VPNBook began to publish the password instead of direct text in the form of an image. "Well, it's like that," I thought, and began to look for ways to solve this problem. Recognize the "picture" VPNBook password in PHP. And, of course, the script for Mikrotik.
 
Customize the automatic obtaining of a password for VPN on Mikrotik ". Prior to the problem, the password for VPNBook could simply be extracted from the html page, for example, as:
 
 
preg_match ('/Password:
([^<]+) /', $ homepage, $ matches);
print ($ matches[1])

 
And recently the password has become a "picture". And ...
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All you wanted to know about testing Wi-Fi adapters, but were afraid to ask

All you wanted to know about testing Wi-Fi adapters, but were afraid to ask
 
 
One of these days our company will be 20 years old. The last 15 years of these 20 we are making programs for the analysis of Wi-Fi networks. Part of this work is the development of drivers for Wi-Fi adapters, and in this article I will describe how the development team is testing the products of its work, and how the testing process has evolved over these 15 years along with the evolution of standards and adapters. There will be many pictures (what is called "geek porn") and technical details.
 
Bplus Technology , which, among a large assortment of very interesting ...
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HPE webinars in August-October

A new series of HPE webinars has arrived, and there are a lot of interesting topics in it: arm processors in high-performance computing, acceleration of calculations with Intel Optane, building Wi-Fi in extreme conditions, HPE Lanamark utility for reviewing the state of IT infrastructure, various services for data centers. See the full list and register:
 
HPE webinars in August-October  
The arm processor in HPC. We dismantle HPE Apollo 70 - August 29
 
HPE Apollo 70 - the first corporate HPC platform based on arm processors from HPE. What for? What is inside? What's outside? What's around? Understand the points.
 
 
...
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Overview of the data center IXcellerate (the largest machine hall in the Russian Federation)

Overview of the data center IXcellerate (the largest machine hall in the Russian Federation)  
 
The most important thing is that after the turbine hall hot wet wipes are served, as in Japanese restaurants. It has nothing to do with the technical part, but it's humanly nice.
 
 
And this is a guitar with Paul McCartney's autograph, and yes, it hangs at the entrance to the turbine hall:
 
 
 
 
This data center has a certain mood.
 
 
It looks like a huge hangar in the industrial zone near the metro station "Otradnoe". The height of the hangar is 14 meters, inside the data center is 9 meters high. The remaining space plays the role of a heat insulator, which affects the local cooling features. The building was chosen in such a way that it did not go out on the road with edges (certification protocols can not get high levels if you can get into the truck through a truck, ramming the wall - apparently there were cases), had two different routes and was relatively close to the metro. The MCC station was ...
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6. Check Point to the maximum. IPS. Part 2

6. Check Point to the maximum. IPS. Part 2  
 
Welcome to the 6th lesson and we continue the IPS theme. Previous lesson was completely devoted to delusions on the IPS account, and we also briefly reviewed the history of the formation of intrusion prevention systems. Strongly recommend to see 5th lesson , before starting this one. This will allow us to penetrate more deeply into the problems of the question. This lesson is already fully devoted to the practical part. For various attacks, we will use the distribution. Kali-Linux with tools such as OpenVAS , Metasploit and Social Engineering ...
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Strength check: Termite LT45? LXI

By the beginning of the 1990s, modern personal computers, simply PCs, had replaced cryptographic machines and other specialized cryptographic devices. Often, it was necessary and necessary to work with such encryption machines in the military conditions. Therefore, reliability and strength are the two most important parameters in the development and creation of military portable PCs. Remain unharmed and fully functioning, passing fire, water and copper pipes!
 
 
Strength check: Termite LT45? LXI  
CryptoMuseum
 
 
 
 
Thank you for staying with ...
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