Posted inNetwork
Linux Security: Implementing DoH and DoT to ‘Stay Hidden’ from ISPs
Don't let ISPs know what you're accessing. A detailed guide on encrypting DNS with DoT and DoH on Linux for total privacy protection.
Posted inVirtualization
Configuring Virtual Firewall and Routing with OPNsense/pfSense in KVM/Proxmox: Building a Secure Virtual Network System
Don't let 2 AM network alerts wake you up anymore! Learn how to deploy OPNsense or pfSense as a virtual firewall and router in a KVM/Proxmox environment to enhance security, segment networks effectively, and gain detailed control over data flow for your virtual machines.
Posted inSecurity
Installing and Configuring CrowdSec on Ubuntu: A New Generation Community Server Protection Solution
Protecting servers from cyberattacks is a top priority. CrowdSec offers a novel, community-based approach to detect and prevent threats. This article guides you through installing and configuring CrowdSec on Ubuntu.
Posted inNetwork
Guide to Configuring SSH Tunnel: Local, Remote, and Dynamic Port Forwarding
SSH Tunneling is not just a convenient tool, but also a powerful solution for flexible network security and access. Learn how to configure Local, Remote, and Dynamic Port Forwarding to overcome network limitations, protect data, and optimize daily tasks.
Posted inUbuntu
Installing and Configuring Squid Proxy Server on Ubuntu: Effective Internet Access Control
In an enterprise environment, internet access control is essential. This article shares practical experience on installing and configuring Squid Proxy on Ubuntu. This solution helps you manage bandwidth, block unwanted websites, and enhance network security, based on the success of the DevOps team.
Posted inNetwork
How to Use nmap for Network Scanning and Linux Server Security Auditing
A practical guide to using nmap for port scanning, service detection, and Linux server security auditing — drawn from real infrastructure management experience. Covers basic commands, NSE scripts, and an automation script for weekly audits.