Tag: Networking
What are Binary and Hexadecimal Number Systems?
A walkthrough of binary numbers, how to convert decimal numbers into binary, how to convert an IPv4 address into binary, and how the hexadecimal system is used to build and compress IPv6 addresses.
What Is an IP Address? IPv4, IPv6, Public, and Private Addresses
Learn what IP addresses identify, how IPv4 and IPv6 differ, and how public, private, static, and dynamic addresses are used.
What is a Subnet and How Does It Work?
An introduction to subnetting, IP address classes, network and broadcast addresses, and why dividing a network into subnets improves performance and security.
Samba Server: How to Install and Configure on Ubuntu
A step-by-step tutorial on installing and configuring a Samba server on Ubuntu Linux for cross-platform file sharing with Windows and Mac clients.
Benefits of IT Certifications
Why IT certifications are worth pursuing, what they cost, and where to find free or low-cost training resources to prepare for vendor exams like the CCNA.
What Are the Well-Known Port Numbers?
A reference guide to the well-known TCP/UDP port numbers, from FTP and SSH to HTTPS and RDP, and how port ranges are categorized.
What Is the OSI Model? The Seven Network Layers
The OSI Model divides network communication into 7 layers, giving vendors and developers a common standard so devices from different brands can interoperate.
What Is Internet Protocol (IP)? Packets, Routing, and Addressing
An explanation of the Internet Protocol (IP), how IP packets and headers work, and how IP routing moves data across interconnected networks.