Diagnose networks
IP · DNS · nmcli · 7 posts
Investigating Listening Ports and Connection States with the ss Command
This article explains how to use the ss command to check listening ports, associated processes, TCP states, and filter conditions, and how to troubleshoot port conflicts and connection failures from the server side.
Linux · NetworkingConfigure a Static IP, DNS, and Gateway with nmcli
This guide explains how to use nmcli in a NetworkManager environment to configure, apply, and verify a static IP address, DNS, and a default gateway, and safely roll back the changes when necessary.
Linux · NetworkingWindows Network Diagnosis Tools Guide
Practical examples for resolving communication issues in Windows Server using ping, tracert, netstat, and Get-NetTCPConnection.
Windows ServerNIC Teaming Configuration and Redundancy Design
Explains how to configure NIC Teaming in Windows Server using LBFO and Switch Independent mode, including dynamic load balancing, failover testing, and operational design.
Windows ServerWindows Server Network Configuration
How to configure NICs, DNS, and routing priorities on Windows Server using PowerShell, with best practices for multi-adapter environments.
Windows ServerHow to Configure Proxy Settings on Windows
A complete guide to configuring proxy settings for Windows users and system services, including WinHTTP and BITS.
WindowsConfiguring Network Settings with PowerShell
A step-by-step guide on configuring network settings using PowerShell on Windows.
Windows