Object storage in the cloud: Is backup needed?

The failure to back up data that is stored in a cloud block-storage service can be lost forever if not properly backed up. This article explains how object storage works very differently from block storage and how it offers better built-in protections.What is Object Storage? Each cloud vendor offers an object storage service, and they include Amazon's Simple Storage Service (S3), Azure’s Blob Store, and Google’s Cloud Storage.Think of object storage systems like a file system with no hierarchical structure of directories and subdirectories. Where a file system uses a combination of a directory structure and file name to identify and locate a file, every object stored in an object storage system gets a unique identifier (UID) based on its content.To read this article in full, please click here

OpenBSD in 2019

I’ve used OpenBSD on and off since 2.1. More back then than in the last 10 years or so though, so I thought I’d try it again.

What triggered this was me finding a silly bug in GNU cpio that has existed with a “FIXME” comment since at least 1994. I checked OpenBSD to see if it had a related bug, but as expected no it was just fine.

I don’t quite remember why I stopped using OpenBSD for servers, but I do remember filesystem corruption on “unexpected power disconnections” (even with softdep turned on), which I’ve never really seen on Linux.

That and that fewer things “just worked” than with Linux, which matters more when I installed more random things than I do now. I’ve become a lot more minimalist. Probably due to less spare time. Life is better when you don’t run things like PHP (not that OpenBSD doesn’t support PHP, just an example) or your own email server with various antispam tooling, and other things.

This is all experience from running OpenBSD on a server. On my next laptop I intend to try running OpenBSD on the dektop, and will see if that more ad-hoc environment Continue reading

Tales from the Crypt(o team)

Halloween season is upon us. This week we’re sharing a series of blog posts about work being done at Cloudflare involving cryptography, one of the spookiest technologies around. So bookmark this page and come back every day for tricks, treats, and deep technical content.

A long-term mission

Cryptography is one of the most powerful technological tools we have, and Cloudflare has been at the forefront of using cryptography to help build a better Internet. Of course, we haven’t been alone on this journey. Making meaningful changes to the way the Internet works requires time, effort, experimentation, momentum, and willing partners. Cloudflare has been involved with several multi-year efforts to leverage cryptography to help make the Internet better.

Here are some highlights to expect this week:

• We’re renewing Cloudflare’s commitment to privacy-enhancing technologies by sharing some of the recent work being done on Privacy Pass
• We’re helping forge a path to a quantum-safe Internet by sharing some of the results of the Post-quantum Cryptography experiment
• We’re sharing the rust-based software we use to power time.cloudflare.com
• We’re doing a deep dive into the technical details of Encrypted DNS
• We’re announcing support for a new technique we developed with industry partners Continue reading

Path Prepending in BGP

TCP MD5

TCP_MD5 (RFC 2385) is something that doesn’t come up often. There’s a couple fo reasons for that, good and bad.

I used it with tlssh, but this should explain why I didn’t enable it by default.

What it is

In short it’s a TCP option that adds an MD5-based signature to every TCP packet. It signs the source and destination IP address, and the ports, and the payload. That way the data is both authenticated and integrity protected.

When an endpoint enables TCP MD5, all unsigned packets (including SYN packets) are silently dropped. For a signed connection it’s not even possible for an eavesdropper to reset the connection, since the RST would need to be signed.

It’s used by the BGP protocol to set a password on the connection, instead of sending the password in the handshake. If the password doesn’t match the TCP connection doesn’t even establish.

But outside of BGP it’s essentially not used, which is a shame. If we could enable it for any TCP service it’d add a preshared key and completely replace the silly port knocking. It probably couldn’t replace user passwords, but it could add a layer and greatly reduce attack surface much Continue reading

Cisco Networking Trends Report: ‘Intent-Based Networking Is Coming’

Worth Reading: Hard Work

Seth Godin published an interesting article on the value of hard work (and what hard work really is). Go and read it first, then we’ll translate it into networking terms.

Already back? Good, let’s go.

The first worker is a traditional networking technician (it wouldn’t be fair to call him an engineer) – he’s busy configuring VLANs, ACLs, firewall rules… the whole day.

Why Micron is Getting into the AI Accelerator Business

Micron has a habit of building interesting research prototypes that offer a vague hope of commercialization for the sheer purpose of learning how to make its own memory and storage subsystem approaches more tuned to next generation applications. …

Why Micron is Getting into the AI Accelerator Business was written by Nicole Hemsoth at The Next Platform.

AWS Invests In Iron And People To Court Enterprises

In the early years of Amazon Web Services, the collection of compute, storage, networking, and platform services (database, analytics, and such) were so good that Amazon, its parent company, did not have to spend a lot of money on sales and marketing to get startups to flock in droves to this public cloud to use it as their computing platform. …

AWS Invests In Iron And People To Court Enterprises was written by Timothy Prickett Morgan at The Next Platform.

Heavy Networking 481: Enhancing Cloud Security With Network Detection And Response From ExtraHop (Sponsored)

ExtraHop is our sponsor for today's Heavy Networking podcast. We dive into Network Detection and Response (NDR) with CTO and co-founder Jesse Rothstein. We explore how to enhance your security posture with NDR, how to use it in the cloud, ExtraHop's ability to take advantage of native cloud traffic mirroring, how ExtraHop deals with encrypted traffic, and more.

The post Heavy Networking 481: Enhancing Cloud Security With Network Detection And Response From ExtraHop (Sponsored) appeared first on Packet Pushers.

Slow Service Provider Sales Muddle Juniper’s Q3 Earnings

Cloud Wars: Amazon, Microsoft Report Declining Cloud Growth

Verizon Touts 5G Scenarios Amid ‘Worrisome Signs’

Hyperscalers And Cloud Builders Resume Their Spending Spree

After two and a half quarters of tightening the purse strings, the world’s largest consumers of infrastructure – the eight major hyperscalers and cloud builders – plus their peers in the adjacent communications service provider space all started spending money on servers and storage again, and Intel can breathe a sigh of relief as it works to get its 10 nanometer manufacturing on track for the delivery of “Ice Lake” Xeon SP processors sometime in the second half of next year. …

Hyperscalers And Cloud Builders Resume Their Spending Spree was written by Timothy Prickett Morgan at The Next Platform.

Stuff The Internet Says On Scalability For October 25th, 2019

 Wake up! It's HighScalability time:

Number Stuff: 

The End of SD-WAN’s Party In China

As I was listening to Network Break Episode 257 from my friends at Packet Pushers, I heard Greg and Drew talking about a new development in China that could be the end of SD-WAN’s big influence there.

China has a new policy in place, according to Axios, that enforces a stricter cybersecurity stance for companies. Companies doing business in China or with offices in China must now allow Chinese officials to get into their networks to check for security issues as well as verifying the supply chain for network security.

In essence, this is saying that Chinese officials can have access to your networks at any time to check for security threats. But the subtext is a little less clear. Do they get to control the CPE as well? What about security constructs like VPNs? This article seems to indicate that as of January 1, 2020, there will be no intra-company VPNs authorized by any companies in China, whether Chinese or foreign businesses in China.

Tunnel Collapse

I talked with a company doing some SD-WAN rollouts globally in China all the way back in 2018. One of the things that was brought up in that interview was that Continue reading

So, what exactly is NFA?

The post So, what exactly is NFA? appeared first on Noction.

Nominations Now Open for 2020 Internet Society Board of Trustees Elections

The Internet Society Nominations Committee is now inviting nominations for candidates to serve on the Board of Trustees.

The Board provides strategic direction, inspiration, and oversight to advance the Internet Society’s mission of preserving the open, globally-connected, trustworthy and secure Internet for everyone.

In 2020 Chapters will elect two (2) Trustees; Organization Members will elect one (1) Trustee; and the IETF will appoint one (1) Trustee. The term of office is 3 years, beginning in August 2020 and ending mid-year 2023.

The Internet Society is a global non-profit organization that champions the open Internet for everyone. With offices in Washington, DC, USA and Geneva, Switzerland, as well as regional bureaus throughout the world, it is dedicated to ensuring the open development, evolution, and use of the Internet for the benefit of people globally. ISOC is also the organizational home of the Internet Engineering Task Force (IETF) and other Internet-related bodies who together play a critical role in ensuring that the Internet develops in a stable and open manner. ISOC has more than 100 Organization Members, over 130 Chapters and Special Interest Groups, and more than 60,000 individual members that play a role in driving the mission and work of the Continue reading

Noction Flow Analyzer is now in Open Beta

The post Noction Flow Analyzer is now in Open Beta appeared first on Noction.

Weekly Wrap: Ex-Cisco Execs Launch Pensando, Target Amazon