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List of Open Source Security Tools

Bozho April 11, 2021

As a founder of a security company, I’m constantly looking for open source tools to either incorporate in our offering, or get inspiration from, or provide integration with. And thereContinue reading

Always Name Your Thread Pools

Bozho March 20, 2021

Our software tends to use a lot of thread pools – mostly through java.util.concurrent.ExecutorService implementations (Created via Executors.new…. We create these for various async use-cases, and they can be seenContinue reading

Connecting to Kibana Within an AWS VPC

Bozho February 22, 2021

When you use the managed Elasticsearch service on AWS, you usually choose an encrypted connection (via KMS-managed keys), which means you can’t use just any tool to connect to yourContinue reading

Elasticsearch – Scalability and Multitenancy [slides]

Bozho January 26, 2021

Last week I gave a talk in a local tech group about my experience with Elasticsearch at LogSentinel, and how we achieve multitenancy and scalability. Obviously, the topic of scalabilityContinue reading

Content-Security-Policy Nonce with Spring Security

Bozho January 6, 2021

Content-Security-Policy is important for web security. Yet, it’s not mainstream yet, it’s syntax is hard, it’s rather prohibitive and tools rarely have flexible support for it. While Spring Security doesContinue reading

Releasing Often Helps With Analyzing Performance Issues

Bozho December 26, 2020

Releasing often is a good thing. It’s cool, and helps us deliver new functionality quickly, but I want to share one positive side-effect – it helps with analyzing production performanceContinue reading

Syntactic Sugar Is Not Always Good

Bozho December 11, 2020

This write-up is partly inspired by a recent post by Vlad Mihalcea on LinkedIn about the recently introduced text blocks in Java. More about them can be read here. Now,Continue reading

Creating a CentOS Startup Screen

Bozho November 25, 2020

When distributing bundled software, you have multiple options, but if we exclude fancy newcomers like Docker and Kubernetes, you’re left with the following options: an installer (for Windows), a packageContinue reading

Let’s Kill Security Questions

Bozho November 20, 2020

Security questions still exist. They are less dominant now, but we haven’t yet condemned them as an industry hard enough so that they stop being added to authentication flows. ButContinue reading

My Advice To Developers About Working With Databases: Make It Secure

Bozho November 3, 2020

Last month Ben Brumm asked me for the one advice I’d like to give to developers that are working with databases (in reality – almost all of us). He publishedContinue reading

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LogSentinel – a next-gen SIEM

SentienlDB – a GDPR-compliant datastore

Computoser – algorithmic music

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