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Rspamd 4.0: spam filtering updates

https://sudonull.com/rspamd-4-0-spam-filtering-updates

Rspamd 4.0.0 is out with fuzzy anti-phishing, token balancing, and GPT module. Learn key changes for production deployment. For developers.

Fraud Detection in Lead Forms: Methods and Code

https://sudonull.com/fraud-detection-in-lead-forms-methods-and-code

Study the evolution of attacks on forms and the 'soft' filter for blocking spam without rejection. Node.js code examples, behavioral checks. Protect lead generation from ordered applications — implement today.

How to Stop Getting Spam Emails in Gmail (2026)

https://sudonull.com/how-to-stop-getting-spam-emails-in-gmail-2026

Stop spam in Gmail permanently: unsubscribe, block senders, report spam, and master 2026 filters. Includes SPF/DKIM/DMARC rules and the 0.3% complaint rate limit.

Backdoor in WordPress plugins: C2 in Ethereum

https://sudonull.com/backdoor-in-wordpress-plugins-c2-in-ethereum

Breakdown of attack on 30+ WP plugins: PHP deserialization, cloaking spam, persistent C2 in smart contract. Cleanup checklist and supply-chain protection. Check your site now.

API keys for pet projects: HMAC and cache

https://sudonull.com/api-keys-for-pet-projects-hmac-and-cache

Learn how to implement a free API with self-sufficient keys, spam protection, and LRU cache. Minimize DB queries for pet projects. Test in playground.

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https://github.com/jenkinsci

Jenkins Jenkins is an open source automation server with an unparalleled plugin ecosystem to support practically every tool as part of your delivery pipelines

Mar 16, 2026 ·

https://blog.jetbrains.com/teamcity/2026/03/scaling-jenkins/

Mar 16, 2026 · Learn how to scale Jenkins with agents, controller tuning, Kubernetes, or multiple controllers, and when instance sprawl becomes a management problem.

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