Some time last year, a weird thing happened in the hackerspace where this is being written. The Internet was up, and was blisteringly fast as always, but only a few websites worked. What was up?

In the early 1990s, internet engineers sounded the alarm: the pool of numeric addresses that identify every device online was not infinite. IPv4, the fourth version of the Internet Protocol, used ...

Almost from inception, the adoption and usage of the internet have grown at a rapid rate. Various sources estimate a growth rate of around 9% per year to nearly 5 billion users in 2021, more than ...

Tanya Candia is an international management expert, specializing for more than 25 years in information security strategy and communication for public- and private-sector organizations. Domains that ...

Tanya Candia is an international management expert, specializing for more than 25 years in information security strategy and communication for public- and private-sector organizations. Federal ...

Most anyone that considers IPv6 implementation and proposes implementation solutions looks at it in terms of IPv4/IPv6 coexistence. When the IPv6-capable devices in a network are dual stacked, ...

I'm looking for more information about having IPv4-only devices (embedded, legacy, etc) on a network that is otherwise IPv6-only, with IPv6-only Internet access. It's academic at this point, but I can ...

Many hackers have familiar sayings in their heads, such as “If it ain’t broke, don’t fix it” and KISS (Keep it simple, stupid). Those of us who have been in the field for some time have habits that ...

In “automatic” tunneling, hybrid IPv4/IPv6 addresses are created by extending 32-bit IPv4 addresses to 128 bits by adding leading zeros. IPv6 packets are encapsulated within IPv4 headers, so that one ...