We already have many guides with TM1637 LED display module and Arduino. Is not it risky to use led display unprotected? We do gave good wooden stand for 3V DC motor. Here is how to build DIY basic stand for TM1637 7 segment LED display module with cardboard. You need just a cardboard, a pencil, a ruler, a paper knife, gum, 4 male to female jumper wires to build it. It is easy, cheap, fast to build … [Read more...]
Apache 2.4 OCSP Stapling : Optimization & Error Prevention
In previously published guide we talked about basic steps to enable OCSP Stapling on Apache. That is the maximum you'll get on most of the websites on this earth. It is not abnormal to face odd error with OCSP Stapling. Most websites advice to fix them somehow. Here is a complete guide on Apache 2.4 OCSP Stapling optimization & error prevention. Apache 2.4 OCSP Stapling Error … [Read more...]
Building Big Data Analytics Solutions In The Cloud With Tools From IBM
The basic softwares to build own basic big data analytics system on own servers has been discussed on this website through multiple tutorials and we have a list of such big data tutorials for the beginners. Those guides are good to test for the developers including a webmaster on need for log analysis of web server. The running cost of few public servers with 16 GB+ RAM with modern processor is … [Read more...]
Difference Between Hard Reboot and Soft Reboot Of Server
Virtual servers, cloud servers are easy (and cheap) alternative to dedicated and colocation servers. Of course quality of real hardware aka dedicated and colocation also affects the virtual servers, cloud servers. However the end users never need to think about the non-responding hardware in case of virtual servers, cloud servers. New dedicated server users often ask the difference between hard … [Read more...]
Choosing The Correct LCD Display For Arduino Like Boards
There are many technologies like LCD, VFD, TFT, OLED to show what we want to show. Moreover there are monochrome LCD, variations of monochrome LCD like white text with blue backlight. Choosing the correct lcd display for Arduino like boards is crucial for budget, for compatibility with wider range of board & microcontroller. In this article we will deliver a gross idea of which are towards … [Read more...]
DIY LED Replacement Bulb For E10 Bulb With Lens
E10 bulb with lens are great for pointed focus. Those bulbs are common in vintage pencil beam flashlights like Sea-Gull Pocket Flashlight FS 008 model. If you never saw the model can perform a web search. In 2017 that model's old stock of unopened sells at $20 to $40 per piece. Those E10 bulb with lens has LED version but neither cheap for easily available. We can add circuit, use glass lens. Here … [Read more...]
WordPress Persistent Object Cache, Fragment Cache Optimisation
Some features of WordPress are less known. WordPress persistent object cache, fragment cache optimisation can improve page loading time. You can setup separate cloud server for cache. All of us possibly aware of XCache, Memcached, Redis. But often how to use remains unknown. Backend For WordPress Persistent Object Cache, Fragment Cache In case of Ubuntu 16.04 and PHP 7 … [Read more...]
Setup SFTP Without Shell Access For WordPress, Cloud Server
Normally we have a common security setup for the servers which we described on our guide on basic server setup and ensuring security. Paid web hosting control panels like cPanel usually have either no shell but FTP or SFTP access or limited shell access. Often we need to host account on vps or cloud server where it is desired to have a setup sftp without shell access for WordPress Like cPanel. We … [Read more...]