Packets DownRange
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This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon at $3 or more Unlock with … Read more
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more
SNMP (Simple Network Management Protocol) is a powerful tool for monitoring and managing network devices. MikroTik’s RouterOS v7 offers robust support for SNMP, allowing network administrators to gather performance metrics, monitor device health, and automate management tasks. In this blog post, we’ll walk through the process of configuring SNMP on MikroTik RouterOS v7, complete with … Read more
Stephen Klenert has an article on implementing a new network structure.Implementing a new network infrastructure is a complex endeavor, involving coordination with vendors, colocation operators, and various stakeholders. Success depends on meticulous planning, attention to detail, and the ability to adapt to situational variables. Among these, situational awareness stands out as a critical component, enabling … Read more
https://web.archive.org/web/20130215021006/https://www.tummy.com/articles/famous-dns-server/ Chances are that if you’re a network operator you know the IP address 4.2.2.2. It’s an easy to type and easy to remember address, which since 1998 has been a “beefy” DNS service responding to the public Internet. Since you need DNS before you can use anything other than IP addresses on the Internet, … Read more
IPv4 Subnet Mask Cheat Sheet CIDR Notation Subnet Mask Total Subnets Hosts per Subnet (usable) /8 255.0.0.0 1 16,777,214 /9 255.128.0.0 2 8,388,606 /10 255.192.0.0 4 4,194,302 /11 255.224.0.0 8 2,097,150 /12 255.240.0.0 16 1,048,574 /13 255.248.0.0 32 524,286 /14 255.252.0.0 64 262,142 /15 255.254.0.0 128 131,070 /16 255.255.0.0 256 65,534 /17 255.255.128.0 512 32,766 … Read more
This guide will walk you through the process of adding a host effectively, ensuring all relevant data is captured and presented clearly.
As the demand for secure and reliable wireless networks grows, so does the need for advanced encryption standards. Enter Wi-Fi Protected Access 3 (WPA3)—the latest and most secure Wi-Fi encryption protocol. Introduced in 2018, WPA3 is designed to address vulnerabilities in previous standards, including WPA2, and to provide enhanced protection for modern wireless networks. In … Read more
Short read this week. Struggling with the cold weather here in Indiana. Cold weather always is a de-motivator for me. Interconnection & Data Center News•Report in IP Interconnection by the BEREC.The report provides insights into the utilisation of various IP-IC services. It analyses traffic developments as well as assesses pricing and cost trends showing that … Read more
In modern networking, switch trunk ports play a vital role in ensuring smooth communication across VLANs (Virtual Local Area Networks). While the concept of a trunk port is consistent across networking vendors, the implementation details can vary. In this blog post, we’ll explore what a trunk port is, why it’s used, and how Cisco, Dell, … Read more
A data center is the beating heart of modern businesses, housing critical IT infrastructure that powers applications, processes, and data. Behind this infrastructure lies a robust power system designed to ensure uninterrupted operation. Power systems in a data center are complex and include various types of power sources and components, each serving a unique purpose. … Read more