RIP: Sir Charles Kuen Kao – Fiber Optic Pioneer

This week marks the death of Sir Charles Kuen Kao, one of modern networking’s pioneers. He died on Sunday 23 September 2018, aged 84. Born in Shanghai in 1933, Charles Kao moved later to Hong Kong where he completed his secondary education. He came to the UK to gain a Bachelor of Engineering degree. In…

Microsoft acquires GitHub for $7.5bn

Microsoft has splashed out again. They have just acquired open-source source code management and sharing platform GitHub for $7.5bn. GitHub has a community of 28 million developers and hosts 85 million repositories of code. GitHub is used to host some of the most significant open-source projects, including Ansible, Kubernetes and many others. Microsoft’s last major purchase was…

How to enter that VMware BIOS Setup Prompt

Using virtualised systems and dev-ops processes means that most of the time it is easier to build something afresh using templates and tools than to make changes to an existing environment. But sometimes, you do need to make those changes. And if that change requires an alteration to the BIOS configuration, that can be challenging.…

Wireshark 2.4.6 on CentOS 7 available via repository

Note: 11 January 2018. We have updated the repository with Wireshark 2.6.6 This is the last version of 2.4 in the repository. This is a maintenance release of Wireshark 2.4. The repository will allow you to update to version 2.4.6. If you want to use it, add the repository following the instructions in Wireshark 2.4 on…

Cloudflare adds Secure DNS service on 1.1.1.1

Cloudflare has expanded the range of secure DNS services available. As well as Cisco’s OpenDNS, Google’s DNS service, Oracle’s Dyn, and the recent Quad 9 service, Cloudflare now adds 1.1.1.1 to the mix. According to their blog yesterday (Announcing 1.1.1.1: the fastest, privacy-first consumer DNS service), this is not an April Fool’s joke, but a…

RFC8369: Internationalizing IPv6 Using 128-bit Unicode

In a forward-looking RFC that presupposes an expansion of the Unicode address space to 128-bits, it is proposed that IPv6 addresses may instead of the standard notations proposed in RFC8600, be represented by a specific emoji or equivalent. Assuming the new Unicode code point space is 128 bits — excluding some reserved bits for backwards…

RFC8367: Wrongful Termination of IP Packets

In a continuation of the serious consideration our standards bodies place on keeping the Internet relevant to society, today the IETF has issued RFC8267. IP packets are often terminated by network devices. … IP routers and middleboxes, such as firewalls, often terminate packets that do not comply with a predefined policy. Unfortunately, some filtering policies…