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Fedora tutorial - IT technology blog
Posted inFedora

Configuring SELinux on Fedora: From Enforcing Mode to Custom Policies for Your Application

Posted by By IT From Zero March 1, 2026
SELinux on Fedora is often disabled the moment it causes the first error — but doing so removes the most important security layer. This guide walks you through debugging denial logs, fixing file contexts, leveraging built-in booleans, and creating custom policies with audit2allow so your app runs correctly and your server stays secure.
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Network tutorial - IT technology blog
Posted inNetwork

Setting Up a DNS Server with Bind9 on Ubuntu/Debian

Posted by By IT From Zero February 28, 2026
A step-by-step guide to setting up an internal DNS server with Bind9 on Ubuntu/Debian: installation, forward and reverse zone files, forwarder and ACL configuration, testing, and troubleshooting. Written from real-world experience managing an office network.
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