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Bozho

Senior Java developer, one of the top stackoverflow users, fluent with Java and Java technology stacks - Spring, JPA, JavaEE. Founder and creator of http://computoser.com and http://welshare.com . Worked on Ericsson projects, Bulgarian e-government projects and large scale recruitment platforms. Member of the jury of the International Olympiad in Linguistics and the Program committee of the North American Computational Linguistics Olympiad

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

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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

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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

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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

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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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Discovering an OSSEC/Wazuh Encryption Issue

Bozho October 12, 2020

I’m trying to get the Wazuh agent (a fork of OSSEC, one of the most popular open source security tools, used for intrusion detection) to talk to our custom backendContinue reading

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OpenSSL Key and IV Padding

Bozho October 10, 2020

OpenSSL is an omnipresent tool when it comes to encryption. While in Java we are used to the native Java implementations of cryptographic primitives, most other languages rely on OpenSSL.Continue reading

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ElasticSearch Multitenancy With Routing

Bozho September 28, 2020

Elasticsearch is great, but optimizing it for high load is always tricky. This won’t be yet another “Tips and tricks for optimizing Elasticsearch” article – there are many great onesContinue reading

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Is It Really Two-Factor Authentication?

Bozho September 24, 2020

Terminology-wise, there is a clear distinction between two-factor authentication (multi-factor authentication) and two-step verification (authentication), as this article explains. 2FA/MFA is authentication using more than one factors, i.e. “something youContinue reading

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Bulk vs Individual Compression

Bozho August 27, 2020

I’d like to share something very brief and very obvious – that compression works better with large amounts of data. That is, if you have to compress 100 sentences you’dContinue reading

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My projects

LogSentinel – a next-gen SIEM

SentienlDB – a GDPR-compliant datastore

Computoser – algorithmic music

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This work by Bozhidar Bozhanov is licensed under a Creative Commons Attribution 3.0 Unported License.
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