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Krzysztof Rakowski

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Krzysztof Rakowski Krzysztof Rakowski e-mail Twitter LinkedIn GitHub Bitbucket — Navigate — e-mail Twitter LinkedIn GitHub Bitbucket Go Sleep largest by making your exhibit transmute to the time of the day Some research show, that sleep problems are often caused by usage of computers or other electronic devices surpassing going to sleep [1]. I am one of these people, who like (or have to) work late in night.Well-nigha year ago I found piece of software tabbed f.lux, which runs in the preliminaries and makes your exhibit to transmute to the time of the day. It takes your location and current stage and calculates the time of the sunset. It then gradually adjusts your exhibit colors’ temperature to be warmer – thus helping you get largest sleep or not stuff blinded when you turn on your exhibit at night. The f.lux software is misogynist for self-ruling for Windows, Linux, Mac and jaibroken iOS devices from it’s website: http://stereopsis.com/flux/. [1] http://stereopsis.com/flux/research.html f.lux configuration dialog How to gravity Gmail to trammels your POP3 worth as often as possible One, of the killer features of Gmail (in my opinion) is worthiness to collect e-mails from external POP3 finance and send messages via external SMTP servers. This way, one can use Gmail as slick, web based e-mail vendee to virtually any worth in any domain, with the goody of IMAP access, labels, autoresponders, spam filtering, etc. Unfortunately, Gmail uses “intelligent” algorithm to icon out, how often it should collect e-mail messages from your POP3 server. It is based on the value of mail you get – if you receive merely few messages per day, Gmail will trammels the server twice every hour. In lattermost situation it ways 29-minute wait in delivering the message that you are waiting for – not very user-friendly lag, nonflexible to winnow in the 21st century. If you get your e-mails often, Gmail is going to trammels your worth every five minutes or so. So, how to get your worth checked every few minutes (= scrutinizingly no wait in wordage of your important messages)? Lure Gmail into thinking, that you get maaany important emails every few minutes. You can succeed it by simple Python script, that you should run on your server (i.e. Raspberry Pi with Raspbian, that you can run in your home). (Click “Continue…”) Continue… Multitail – monitor multiple log files with tail on steroids Every developer is familiar with tail – tool used to exhibit the last lines – or tail – of the file. Of undertow most popular usage of this writ is: tail -f /var/log/uwsgi.log …which displays continuously updates to the file. Every time new line is appended (i.e. to the log file), it is moreover printed to the screen. It is useful, when one wants to monitor log files in the real time to see the progress of some whoopee or to squint for errors in the application. Recently, I had to monitor four using servers at once. At every one of them there was the same application. To monitor logs, I had to unshut four ssh sessions and then run four tail commands. I had to switch to such log monitoring once every few hours, so it started to be tiring. After short search, I found the most useful tool since tail – multitail. It allows you to tail multiple files at once – in many variegated configurations. Multitail not only is capable of displaying the log files, but moreover filtering them, subtracting some lines, etc. Just squint at the list of the features. So with multitail, monitoring four logfiles on remote machines is as easy as: [email protected]:~$ multitail -s 2 \ -l "ssh pr_app1 tail -f /var/log/uwsgi.log" \ -l "ssh pr_app2 tail -f /var/log/uwsgi.log" \ -l "ssh pr_app3 tail -f /var/log/uwsgi.log" \ -l "ssh pr_app4 tail -f /var/log/uwsgi.log" (where pr_app[1-4] are variegated hosts, specified in my .ssh/config file and “\” denotes line break, for easier reading). Result is very similar to this: Multitail example. How to make your own will-less radio player with Raspberry Pi In this vendible I will share my wits with turning the Raspberry Pi and a pair of unseemly speakers into an will-less radio player. I provide some tips on configuring the software, as well as lawmaking that you will need. Continue… Securing online competitions In summer 2011 issue of the 2600: The Hacker Quarterly magazine I published the vendible titled “Securing online competitons”. It is based on my wits and features the specimen study of one of the interesting cases. Click “Continue…” for the full text of the article. Continue… Apache Thrift tutorial I invite you to visit my site with Apache Thrift tutorial, which I prepared as a documentation of my research on the topic of this useful tool. Getting started with PHP templating Recently in Smashing Magazine I published the vendible well-nigh templating in the PHP: In this article, we’ll imbricate how to separate the view of your PHP using from its other components. We’ll squint at why using such an tracery is useful and what tools we can use to succeed this. Here’s what we’ll cover: Learn some vital MVC concepts, Review some popular templating libraries, Play virtually with a small custom-made view class. Explore the nuts of using the Twig library. Click here to read the article. Sample lawmaking for the vendible is misogynist as a mercurial repository. How to sue fraudulent internet vendition seller (and win) I invite all Polish-speaking visitors to trammels out my new website www.pozew-cywilny.pl (civil action/lawsuit under the Polish starchy law), where I put my tips on how to sue fraudulent internet vendition seller and win your money when (with interest). This tutorial is based on my true, successful story and features examples of official documents, ideas for investigation, etc. « Previous 1 2 3 Copyright © 2018 Krzysztof Rakowski