Computer Networking

Articles in Computer Networking

• How to perform DNS lookup (old) → nslookup

  Learn how to perform DNS lookups using nslookup command. Complete guide with examples, troubleshooting, and best practices for network administrators and IT professionals.

• How to perform DNS query → dig

  Learn how to perform DNS queries using the dig command. Complete guide with examples, syntax, troubleshooting, and best practices for network administrators.

• How to show socket statistics → ss

  Master the ss command to monitor socket statistics on Linux. Complete guide with examples, options, and troubleshooting for network administrators and developers.

• How to show network connections → netstat

  Master the netstat command to monitor network connections, troubleshoot connectivity issues, and analyze network traffic. Complete guide with examples and tips.

• How to manage network (modern) → ip

  Learn how to manage modern network IP configurations using the ip command. Complete guide covering IP addresses, routing, interfaces, and troubleshooting.

• How to show network interfaces (old) → ifconfig

  Learn how to use ifconfig command to display and manage network interfaces. Complete guide with examples, troubleshooting, and best practices for Linux systems.

• How to connect to remote server → ssh

  Learn how to connect to remote servers using SSH with step-by-step instructions, security best practices, troubleshooting tips, and advanced techniques for beginners and experts.

• How to use secure FTP → sftp

  Learn how to use SFTP (Secure File Transfer Protocol) for secure file transfers. Complete guide with commands, examples, troubleshooting, and best practices.

• How to copy files via SSH → scp

  Learn how to securely copy files using SSH and scp command. Complete guide with examples, troubleshooting, and best practices for file transfer.

• How to transfer files via FTP → ftp

  Learn how to transfer files via FTP using command-line tools and GUI clients. Complete guide with step-by-step instructions, examples, and troubleshooting tips.

• How to download a file → wget

  Learn how to download files using wget command-line tool. Complete guide with examples, options, troubleshooting, and best practices for Linux, macOS, and Windows users.

• How to fetch a URL → curl

  Learn how to fetch URLs using curl command-line tool. Complete guide with examples, options, troubleshooting, and best practices for HTTP requests and data retrieval.

• How to trace route to a host → traceroute

  Learn how to use traceroute to trace network paths, diagnose connectivity issues, and troubleshoot routing problems with comprehensive examples and expert tips.

• How to test host connectivity → ping

  Learn how to test network connectivity using ping commands. Complete guide covering syntax, options, troubleshooting, and best practices for Windows, Linux, and macOS.