Ping was born in 1983 when the Internet needed a simple, effective way to measure reachability and distance. In short, ping (and subsequent utilities like traceroute and MTR) provides users with a quick way to validate whether one machine can communicate with another. Fast-forward to today and these network utility tools have become ubiquitous. Not […]
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China Express: Cloudflare partners to boost performance in China for corporate networks
This post is also available in 简体中文. Cloudflare has been helping global organizations offer their users a consistent experience all over the world. This includes mainland China, a market our global customers cannot ignore but that continues to be challenging for infrastructure teams trying to ensure performance, security and reliability for their applications and users […]
Cloudflare Zero Trust for managed service providers
This post is also available in 简体中文, 繁體中文, 日本語, 한국어 and Español. As part of CIO week, we are announcing a new integration between our DNS Filtering solution and our Partner Tenant platform that supports parent-child policy requirements for our partner ecosystem and our direct customers. Our Tenant platform, launched in 2019, has allowed Cloudflare […]
It’s Hard To Change The Keys To The Internet And It Involves Destroying HSM’s
Photo by Niko Soikkeli / Unsplash The root of the DNS tree has been using DNSSEC to protect the zone content since 2010. DNSSEC is simply a mechanism to provide cryptographic signatures alongside DNS records that can be validated, i.e. prove the answer is correct and has not been tampered with. To learn more about […]
However improbable: The story of a processor bug
Processor problems have been in the news lately, due to the Meltdown and Spectre vulnerabilities. But generally, engineers writing software assume that computer hardware operates in a reliable, well-understood fashion, and that any problems lie on the software side of the software-hardware divide. Modern processor chips routinely execute many billions of instructions in a second, […]
Deprecating SPDY
Democratizing the Internet and making new features available to all Cloudflare customers is a core part of what we do. We’re proud to be early adopters and have a long record of adopting new standards early, such as HTTP/2, as well as features that are experimental or not yet final, like TLS 1.3 and SPDY. […]
Introducing Cloudflare Access: Like BeyondCorp, But You Don’t Have To Be A Google Employee To Use It
Tell me if this sounds familiar: any connection from inside the corporate network is trusted and any connection from the outside is not. This is the security strategy used by most enterprises today. The problem is that once the firewall, or gateway, or VPN server creating this perimeter is breached, the attacker gets immediate, easy […]
An Explanation of the Meltdown/Spectre Bugs for a Non-Technical Audience
Last week the news of two significant computer bugs was announced. They’ve been dubbed Meltdown and Spectre. These bugs take advantage of very technical systems that modern CPUs have implemented to make computers extremely fast. Even highly technical people can find it difficult to wrap their heads around how these bugs work. But, using some […]
Why TLS 1.3 isn’t in browsers yet
Upgrading a security protocol in an ecosystem as complex as the Internet is difficult. You need to update clients and servers and make sure everything in between continues to work correctly. The Internet is in the middle of such an upgrade right now. Transport Layer Security (TLS), the protocol that keeps web browsing confidential (and […]
Concise (Post-Christmas) Cryptography Challenges
It’s the day after Christmas; or, depending on your geography, Boxing Day. With the festivities over, you may still find yourself stuck at home and somewhat bored. Either way; here are three relatively short cryptography challenges, you can use to keep you momentarily occupied. Other than the hints (and some internet searching), you shouldn’t require […]
