Lined Article: implementing a new network structure

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 …

The Story behind 4.2.2.2

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 …

IPv4 Subnet Mask Cheat Sheet: A Handy Guide

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 …