Posts tagged IT Ops

5 min IT Ops

3 Predictions for Development in the Age of Serverless Computing

Probably the biggest change that has happened in my lifetime of programming is the transformation from  creating code that is meant to run on known, tangible hardware to making code that runs on the Cloud. We’ve gone from server based computing to the serverless environment. The transformation has brought us the practice of DevOps. Also, the transformation has forced us to rethink the whole way design our code. Increasingly modern programming is about stitching together cloud based resources t

2 min IT Ops

Java 8 - Lazy argument evaluation

Overview “I will always choose a lazy person to do a difficult job. Because he will find an easy way to do it” – Bill Gates Lazy evaluation is an evaluation strategy [] which delays the evaluation of an expression until its value is needed. The opposite of this is eager evaluation, where an expression is evaluated as soon as it is bound to a variable.[wikipedia []] Like most imperative programming l

4 min IT Ops

Logs To Understand User Activity and Behavior

Logging user activity is a great way to understand what users are doing, and how they are using network and computing resources. Collecting data from the standpoint of a user identity or login is a great way to correlate all kinds of information, too, including client or workstation activity, network and server access, and application usage. This provides a unique opportunity to make use of Logentries’ [

6 min IT Ops

The Value of Correlation IDs

In the old days when transactional behavior happened in a single domain, in step-by-step procedures, keeping track of request/response behavior was a simple undertaking. However, today one request to a particular domain can involve a myriad of subsequent asynchronous requests from the starting domain to others. For example, you send a request to Expedia, but behind the scenes Expedia is forwarding your request as a message to a message broker. Then that message is consumed by a hotel, airline

5 min IT Ops

The Generosity of Thought: Caring and Sharing in the Open Source Community

I want to share something with you that is pretty amazing. But, before I do, allow me to provide the backstory. The Backstory I’ve been using Open Source Software (OSS) for a while now. I started with the big ones, Apache [], Maven [], MySQL [], etc…. But, as time went on and my work became more specialized, I started using smaller projects. When you use the big projects such as Maven and Apache, there’s a boatload of books, video

5 min IT Ops

Solving the expression problem

If you look at any OO-based codebase of a nontrivial size, you’ll [hopefully] find well understood behavior formalized and encapsulated through the effective use of polymorphism- either via interfaces which decouple calling code from a types’ implementation, or via sub typing to share code common to multiple types. To take an example from a statically typed language like Java, let’s look at the Map interface and a few of its implementations in the standard library: A receiving method which

3 min InsightOps

Announcing InsightOps - Pioneering Endpoint Visibility and Log Analytics

Our mission at Rapid7 is to solve complex security and IT challenges with simple, innovative solutions. Late last year Logentries joined the Rapid7 family to help to drive this mission. The Logentries technology itself had been designed to reveal the power of log data to the world and had built a community of 50,000 users on the foundations of our real time, easy to use yet powerful log management and analytics engine. Today we are excited to announce InsightOps, the next generation of Logentri

5 min IT Ops

Node.js as a Proxy to

Logging from the client side of a web application can seem like a challenge.  The web browser exposes everything to the user.  There is no way to hide anything delivered to the client from prying eyes, including your log token to your Logentries [] log.  There is no relia

4 min IT Ops

Goodbye to the VCR: Rewinding Down Memory Lane

The VHS tape was a thing of a magic that is alien in the world of on-demand media.  It represented a promise of entertainment. A promise only realized when loading the tape into the player and pressing the play button. There was an air of excitement around every video, and you could never be entirely certain about what the video contained. I was reminded of the mystique of the VCR just this month when I read about its final demise.  Funai Electric, the last major manufacturer of VCR players,

3 min IT Ops

Widely-used Android App Leaks MS Exchange Credentials

In October, Rapid7 researchers [] uncovered a significant vulnerability in the Nine mobile application [] for Android. Baldly stated, this app leaks Microsoft Exchange user credentials, plus mail envelopes and attachments, mailbox synchronization data, caleandar entries and tasks to attac

3 min IT Ops

Top 5 Questions from the October Walkthrough Webinar

The October Walkthrough Webinar was broadcasted & recorded on October 27th 2016. This broadcast included a Logentries demonstration and live Q&A. Below is a sample of some of the questions asked by the audience following the demonstration. To try out the features mentioned below sign up for a Logentries free trial []. 1. “Can I control which logs certain users can see?” Yes! Logentries supports the creation of multiple teams. Logen

3 min IT Ops

Empowering Leexportpy with new services

In previous posts [/2016/07/05/introduction-to-leexportpy/] of this series, we have gone through how leexportpy works, how it is configured and currently supported services for transforming and pushing Logentries Query API [] data to other systems. When it comes to creating a new service for leexportpy, the core of leexportpy is quite dynamic and flexible. Placing your new service file that conforms to the requirements [

4 min IT Ops

Overview of 'online' algorithm using Standard Deviation example

Here at Logentries [] we are constantly adding to the options for analysing log generated data. The query language ‘LEQL’ [] has a number of statistical functions and a recent addition has been the new Standard

5 min IT Ops

Logging OwnTracks to Logentries

A previous blog [/2016/10/07/logging-mosquitto-server-logs-from-raspberry-pi-to-logentries/] showed how MQTT logs can be sent to Logentries for storage, analysis and how those logs can be to alert on potential MQTT security threats, as well as to store and visualize sensor data. This blog follows that by showing how to build a fully connected IoT system composed of the OwnTracks iOS app as an MQTT publisher, a Raspberry Pi with Mosquitto embedded as an MQTT messaging broker and Logentries as

5 min IT Ops

Logging Mosquitto Server logs (from Raspberry Pi) to Logentries

The Internet is evolving and part of this is the emerging Internet of Things (IoT). IoT allows us to use the Internet to seamlessly connect the cyberspace and real world using physical sensors at huge scale, allowing us to gather and analyze the data across many domains. It is estimated that there will be 20 billion Things connected to the Internet by 2020, generating an enormous amount of data. A previous blog post [/2016/05/17/raspberry-pi-logs-and-iot-sending-pi-log-and-sensor-data-to-loge