Year: 2026

09/Mar/2026
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  • roosho

Defend Linux Servers Against Brute-Force Attacks

Implement advanced authentication controls to defend enterprise Linux servers against automated brute-force attacks. Learn to harden SSH, configure sudo restrictions,…
02/Mar/2026
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  • roosho

Secure NFS Server Setup: Permissions, Exports & Hardening Guide

Deploy a production-grade Network File System (NFS) server with strict export policies, root squashing, and firewall configurations to ensure secure…
23/Feb/2026
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  • roosho

Linux Static and Persistent Routes: Configuration and Troubleshooting Guide

Master the configuration of temporary and persistent static routes on Linux systems using ip route, Netplan, and NetworkManager to ensure…
16/Feb/2026
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  • roosho

Setting Up a Secure BIND9 DNS Cache on RHEL for Enterprise Networks

Implement a robust and secure caching name server using BIND9. This guide covers installation, ACL configuration, and security best practices…

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