Linux networking
20 articles
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How to Set a Static IP in Linux: Ubuntu, RHEL, and Debian Covered
Learn how to set a static IP in Linux using Netplan, nmcli, or /etc/network/interfaces — with working examples for Ubuntu, RHEL, Rocky, and Debian.
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How to Use SSH Config File in Linux: Manage Servers Like a Pro
Use the Linux SSH config file (~/.ssh/config) to create aliases, configure ProxyJump, and manage multiple servers without typing long commands.
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How to Set Up an NFS Server on Linux: Share Files Across Your Network
Learn how to set up an NFS server on Linux to share files across your network. Step-by-step guide for Ubuntu and RHEL with security tips and mount options.
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SSH Tunneling in Linux: Local, Remote, and Dynamic Port Forwarding
Learn SSH tunneling in Linux with real command examples. Master local, remote, and dynamic port forwarding to secure your connections like a pro.
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How to Use Netcat (nc) Command in Linux: The Network Swiss Army Knife Every Admin Needs
Master the netcat (nc) command in Linux with real examples. Learn port scanning, file transfers, connection testing, and banner grabbing every sysadmin needs.
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How to Use nmap Command in Linux: The Network Scanner Every Admin Needs
Learn how to use nmap in Linux for network scanning, security audits, and port discovery. Complete guide with examples, best practices, and legal considerations.
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How to Use netstat Command in Linux: The Legacy Tool You Still Need to Know
Learn how to use netstat command in Linux to monitor network connections, check listening ports, and troubleshoot network issues. Includes modern alternatives.
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How to Troubleshoot Network Issues in Linux: A Systematic Approach
Learn how to troubleshoot network issues in Linux with a systematic workflow. From DNS failures to packet loss, master the tools every admin needs.
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How to Use dig Command in Linux: The DNS Tool Every Admin Needs
What is the dig Command (And Why DNS Matters More Than You Think) Learning how to use dig command in Linux transformed the way I troubleshoot network issues.…
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How to Use tcpdump Command in Linux: The Packet Analyzer Every Admin Needs
Master tcpdump to capture and analyze network traffic on Linux. Learn filters, real-world examples, and troubleshooting techniques every sysadmin needs to know.
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How to Use wget Command in Linux: The Download Tool Every Admin Needs
Master the wget command in Linux with practical examples. Learn to download files, resume transfers, mirror websites, and automate downloads like a pro.
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How to Use ip Command in Linux: The Modern Network Tool Every Admin Needs
Master the Linux ip command with practical examples. Learn how this modern tool replaced ifconfig for network configuration, routing, and interface management.
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How to Use ss Command in Linux: The Socket Tool Every Sysadmin Needs
Learn how to use the ss command in Linux for network monitoring and troubleshooting. Modern replacement for netstat with practical examples for sysadmins.
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How to Check Network Speed in Linux: The Essential Guide Every Admin Needs
Learn how to check network speed in Linux using ethtool, speedtest-cli, and iperf3. Master bandwidth monitoring with real-world examples for 2025.
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How to Use Traceroute in Linux: The Network Diagnostic Tool Every Admin Needs
I still remember the first time a user complained that “the internet was slow.” Fresh out of college, armed with my shiny new CS degree, I confidently ran…
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How to Check Network Interface in Linux: The Complete Guide
Master Linux network interfaces with ip, nmcli, and ethtool commands. Learn to troubleshoot connectivity issues and understand network interface names.
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How to Use Ping Command in Linux: Complete Guide with Examples
Master the Linux ping command for network troubleshooting. Learn ICMP basics, essential options, practical examples, and advanced techniques from a sysadmin with 10+ years experience.
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How to Check Open Ports in Linux: The Complete Guide
Learn how to check open ports in Linux with ss, netstat, lsof, and nmap. Complete guide with practical examples, troubleshooting tips, and security best practices for 2025.
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Troubleshooting Slow SSH Connections: A Comprehensive Guide
Troubleshooting Slow SSH Connections: A Comprehensive Guide Experiencing sluggishness with your SSH connections? It’s a common annoyance, and you’re definitely not alone. A slow SSH connection can severely…
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Demystifying systemd-resolved: A Comprehensive Guide to Local DNS Resolution
Demystifying systemd-resolved: A Comprehensive Guide to Local DNS Resolution Hey there, fellow Linux enthusiasts! Alice here, ready to dive deep into another fascinating corner of the Linux world.…
Related topics
- Linux sysadmin 113
- Linux commands 62
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- Linux troubleshooting 20
- Linux security 17
- Shell scripting 16
- Bash 14
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- Ubuntu 12
- Homelab 11
- Systemd 10
