Internet Services, Modems & Routers, Tech Reviews, Computer Networking, Security, and more!
Afroz Ahmad – Main Author of AfrozAhmad.com
Welcome to Afroz Ahmad – I’ve been writing about computer network technologies on my blog since 2012. My name is Afroz Ahmad, and I am a seasoned Network Engineer and author of AfrozAhmad.com.
I’m a CCIE with more than 20 years of experience in Computer Networking, Data Centers, Telecom, Internet Services, Cloud and ISPs. Currently, I work as a Network Designer for a leading ISP equipment vendor. I share my expertise through my blog and courses, aiming to help people solve everyday internet issues, select the appropriate equipment for their tech needs, and simplify complex networking concepts for both beginners and experienced professionals.
Reach out to me with any questions you have on Computer Networking, Modems, Routers, Internet services, etc.
Free networking and internet tools
Eight free tools I use myself: no signup, no account, and nothing you type leaves your device. Every one runs in your browser.
Wi-Fi Channel Overlap Visualiser
Find the clearest 2.4, 5 or 6 GHz channel for your building.
Open the tool
Comparing Ethernet Cables – Cat5 vs Cat5e vs Cat6 vs Cat6a vs Cat7 vs Cat8
In this article, we will provide a comprehensive comparison between Cat5 vs Cat5e vs Cat6 vs Cat6a vs Cat7 vs Cat8 Ethernet cables, to aid you in making informed decisions about your connectivity needs.
Why Is My Upload Speed So Slow? Reasons with Fixes
Discover why your upload speed lags: from ISP issues to old hardware. Get practical tips to boost your internet performance.
Wifi Connected But No Internet: Causes, Fix, and Preventive Measures
Troubleshoot 'Wifi Connected But No Internet' problems. Discover router resets, ISP checks, DNS tweaks, Windows Network Troubleshooter and more in our guide.
Is 10 Mbps Fast Enough? Evaluating Internet Speed for Different Activities
This article will provide the insights you need to determine if 10 Mbps is fast enough for your internet needs.
Is 1000 Mbps Fast Internet? (The Gold Standard of Internet Speeds)
In this article, we will delve into the world of 1000 Mbps, aka gigabit internet, and explore the question: Is 1000 Mbps fast Internet speed?
Is 200 Mbps Fast Enough for Your Online Needs?
Is 200 Mbps fast enough for you? Supports 10 4K streams, 25 HD calls, and lag-free gaming. Find out if it meets your needs.
What is ARP, RARP, Proxy ARP, and GARP
In this article, we delve into the specifics of networking protocols like ARP (Address Resolution Protocol), RARP (Reverse Address Resolution Protocol), Proxy ARP, and GARP (Gratuitous Address Resolution Protocol).
Understanding MTU, Jumbo Frames, and MSS: A Comprehensive Guide
By the end of this article, you should have a clear understanding of MTU, Jumbo Frames, and MSS and how they influence your network’s efficiency and performance.
QEMU vs. KVM: A Comprehensive Guide
Understand the real differences between QEMU and KVM, how accelerators like KVM, HVF, WHPX, and NVMM change performance, and when to use QEMU alone vs QEMU+KVM.
What is BFD or Bidirectional Forwarding Detection?
In this article, we will delve into the details of BFD (Bidirectional Forwarding Detection), including how it works, its configuration, use cases, best practices, integration with various networking protocols, and more.
What is TTL in DNS?
Discover everything you need to know about DNS TTL, including what is TTL in DNS, its purpose, how it works, best practices, troubleshooting and how to optimize it for your domain.
What is DHCP Snooping: DHCP Snooping Explained in Depth
Discover what is DHCP Snooping and its significance in network security. Learn how it prevents DHCP-based attacks and rogue servers in our comprehensive guide.
What is Traceroute Command and How it Works: A Comprehensive Guide
Discover the power of traceroute command in this comprehensive guide, covering its purpose, usage across platforms, reading outputs, response types, and network troubleshooting. Unravel the complexities of this essential network diagnostic tool.
What is Netstat Command: Functions, Usage & Network Insights
Uncover what the netstat command is, what it does, and how to use it effectively for network troubleshooting, monitoring, and optimization.
What are Proxies in Networking, and what are Proxies used for?
This guide covers the essentials of network proxies, including their function, benefits, drawbacks, and a comparison of free and paid options.
What is TTL in Networking?
Explore Time To Live (TTL) in computer networking, its purpose, mechanism, implementation in protocols, troubleshooting, real-world examples, and best practices.
What is NAT, How NAT Works, and Types of NAT
Explore Network Address Translation (NAT) in computer networking, its purpose, types, benefits, limitations, and real-world applications. Understand NAT’s role in IPv4 and IPv6 networks.
20 Guidelines to Effective Communication for Personal and Professional Success
Improve your communication skills with these 20 essential guidelines for effective communication in personal and professional settings. Learn how to tailor your message, listen actively, and provide context for better collaboration and success.
How to Manage Stress and Burnout in the IT Industry: Reasons, Signs, and Best Practices
Learn reasons, signs, and practical strategies to prevent and manage stress and burnout in the fast-paced IT industry. Get expert advice and helpful tips today.