TM1637 is a great cheap module and we have some introduction to TM1637, and some TM1637 projects like TM1637 clock, traffic light timer with push button, a planned project to make cooking top digital etc. This glowing temperature sensor for air-conditioned car with Arduino 7 Segment LED display & DHT11 sensor makes a practical sense. Later we will add digital speedometer function with … [Read more...]
Computer and Internet
Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.
What Is Cloud Data Services (CDS)?
Data commonly stored in databases, like SQL or NoSQL database, but there are other types of data like the data we talk about in the context of Big Data. The moment we talked about Big Data, data analysis in the context of data becoming obvious. Of course the logs of web servers are also source of data and they need analysis. For the larger enterprises, sources of data are diverse and their … [Read more...]
Install GoAccess Real-Time Web Log Analyzer : Apache, Ubuntu
Previously we published GoAccess guides for Nginx and Nginx log with GeoIP. Here in this guide we will show how to install GoAccess real-time web log analyzer for Apache webserver running on Ubuntu and in case of Apache you need not to separately work on how to enable Apache log to have GeoIP enabled features. Apache default log itself a standard format. Install GoAccess Real-Time … [Read more...]
Installing GeoIP Module On Apache2, Ubuntu 16.04
We did it before but for Nginx (you can look - Installing GeoIP On Nginx). We need this to use GoAcesss log analyzer like tools, Piwik etc. WordPress like modern CMS use PHP based function and needs no server side work. Installing GeoIP Module On Apache2, Ubuntu 16.04 Needs Some Manual Steps After Running Installation Command. Sample PHP file supplied to test. Installing GeoIP … [Read more...]
Create Own ATTiny 85 Arduino Based Wearables
ATTiny 85 is a programable microcontroller which is actually used in the smaller version of Arduino. If you search on Ebay, Amazon you will find that they costs lesser than $2 per piece. It is obvious, we made a list of components for creating bigger Arduino compatible LED watch with $8. Electronics is really cheap. Those official Arduino boards are development boards and not intended for real … [Read more...]
How To Configure OCSP Stapling On Apache 2.4+
Previously we talked about OCSP, OCSP Stapling and OCSP Stapling on Nginx. Now, we will configure OCSP Stapling In Apache 2.4 It is important to avoid some settings of OCSP Stapling on a production website as it can give errors like OCSP Response Expired or just in case of Nginx 502. Here is how to configure OCSP Stapling on Apache 2.4+ with full configuration. These are among TLS optimisazion. In … [Read more...]
How To Add CAA Record : Dyn DNS With GeoTrust, Let’s Encrypt
In a previously published guide we talked about DNS CAA Record. Here is how to how to add CAA Record in Dyn DNS with GeoTrust. Let's Encrypt Etc certificates. At that time Dyn DNS has no way to add DNS CAA record. Perhaps this guide will help some of the users. You must add DNS CAA Record, as it is mandatory. If you are not using Dyn DNS, you can test their free trial for a week. In case you … [Read more...]
Optimizing Apache 2.x With TLS, HTTP/2 : Part 1
We have some previous guides to optimize Apache2 and optimize Nginx with TLS and HTTP/2 (if you are interested about them, please use the searching this website feature). Here is first part on optimizing Apache 2.x with TLS HTTP/2. In this guide we will optimise general performance part, not TLS and HTTP/2. There are a variety tools that can assist in determining if the server admin needs to alter … [Read more...]
sysctl.conf Tweaking In OpenVZ Virtual Server Instance
Many of the OpenVZ users try to tweak sysctl.conf and are returned with error. OpenVZ kernel offers a conservative and stable kernel. Here is some information on sysctl.conf tweaking in OpenVZ virtual server instance. Our all tweaks related to system is on dedicated servers, if we tweak any cloud server, we mention the name of the vendor along with the tweak. Applying tweaks for other system on … [Read more...]
List Of Needed Things For Arduino Wearable & IoT Projects
This is possibly an important guide to get started and protect not to get ripped off with marketing of Wearable & IoT projects. Here is a cost effective list of needed things for Arduino wearable & IoT projects which practical for LilyPad, Gemma, Flora, Yun Mini etc. Of course one need the full setup of DIY electronics for normal development boards starting from breadboard, multimeter to … [Read more...]
WordPress Brute Force And Mod Security
Previously we talked about some ways like using IPTables with Fail2Ban, configuring Apache Mod Security and getting flooded on Nginx XML-RPC attacks with odd error which near difficult to detect. Bruteforce attacks & xmlrpc attacks are common. We have many ways to handle them. Here is an article on WordPress Brute force and Mod Security. WordPress Brute Force And Mod … [Read more...]