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EFK stack – versatile and very capable analytics platform
So far I was happily using ELK stack to feed syslog messages into Elasticsearch. In ELK stack I had used Logstash to aggregate syslogs and feed them into elasticsearch. Recently, I came across fluentd and found it quite interesting and flexible. Using fluentd with Elasticsearch and Kibana I have now build a EFK stack. EFK […]
Khetri, Rajasthan photos
I had visited this place in 2012. Found clicks of that time in my archive. This place is known for its copper mines. This small town is surrounded by Aravali range. There is an ancient abandoned habitation visible from the temple there. Site looks very scenic but locals have their own stories about this place. […]
How to interact with influxdb using REST calls
Influxdb is open source database which is predominantly used for time series data collection . I have been using influxdb on my raspberry pi to store data from IoT sensors at home. So far I was using python influxdb module to pump in data. Recently I wanted to find some clientless solution to manage data […]
“Dharohar” Heritage museum, Kurukshetra Photo Gallery
This museum is located inside Kurukshetra University campus near second gate of University. Here you can take a glimpse of rich heritage and culture of region. Elders will feel nostalgic looking at the statues and other items at display.
Jodhpur, Jaisalmer and Kuldhara photos
Traveled to Jodhpur and Jaisalmer last year. Captured amazing colors, culture, monuments , food and people of the region.
Starting with Python django
Django is a open source and free python based framework for web programming. I have used python3 and django 2.1.7 on debian 9.8 in this article to write a basic django based web app. Install django Create a directory to hold are your development stuff “django-works” or whatever name you like. Create your first django […]
Firefox flextrail MTB review
I got my first MTB firefox cyclone in 2010. I am still having cyclone and it is in good condition. I thought to upgrade to a better MTB now. I am using firefox cyclone since quite a long without any glitch so I decided to find new MTB from same brand. This time I was […]
Publish IoT data in Influxdb and visualize in Grafana
I had build an IoT enabled weather station. Now let us build a nice platform to store time series data coming out of DTH22 (weather sensor) on NodeMCU and visualize it into Grafana. I have installed and configured influxdb and Grafana onto my raspberry pi which also hosts my MQTT broker. Weather station code transmits […]
Secure Elasticsearch and Kibana access using Apache reverse proxy
Default ELK installation may not fulfill enterprise requirements as kibana, the visualizer, works on port 5601 without any authentication and elasticsearch listens only on loopback IP on port 9200 without any authentication. You may want to run kibana on standard http/https port ie 80/443 with authentication control. Similarly, you may want to allow elasticsearch access […]
Monitoring aquarium temperature using DS18B20
I have a aquarium with two parrot fishes and few other species. Parrot fishes live happily within 25 to 32 degree Celsius. If temperature goes out of limits then it effects metabolism and behavior of fishes. Even though aquarium heater has thermostat I thought to observe temperature and record it over time. For this you […]