That's fair enough as this unavailability could be a sign of duff connectivity, and you'd want to advertise routes to DNS servers that have robust links to their major centers. So when the bad change hit Facebook's backbone, and all the data centers disconnected, all of Facebook's small bit barns declared themselves crocked and withdrew their BGP advertisements.
So even though Facebook's DNS servers were up, they couldn't be reached by the outside world. Plus, the back-end systems were inaccessible due to the dead backbone, anyway. Failure upon failure. While Facebook's post says it runs "storm" drills to ready itself to cope with outages, it had never simulated its backbone going down. Fixing the outage therefore proved … challenging. Engineers were dispatched to Facebook facilities, and those buildings are "designed with high levels of physical and system security" that makes them "hard to get into, and once you're inside, the hardware and routers are designed to be difficult to modify even when you have physical access.
It took extra time to activate the secure access protocols needed to get people onsite and able to work on the servers. Only then could we confirm the issue and bring our backbone back online. This follows reports of employees' door keycards not even working on Facebook's campuses during the downtime let alone internal diagnosis and collaboration tools, hampering recovery. Once admins figured out the networking problem, they had to confront the impact of resuming service:.
Individual data centers were reporting dips in power usage in the range of tens of megawatts, and suddenly reversing such a dip in power consumption could put everything from electrical systems to caches at risk. Janardhan said he found it "interesting" to see how Facebook's security measures "slowed us down as we tried to recover from an outage caused not by malicious activity, but an error of our own making.
He owns those delays. The post concludes with Facebook's usual admission of error despite earnest effort, apology, and pledge to improve. We're assuming the social network is telling the truth in its write-up. Facebook is not alone in breaking itself or having unhealthy reliance on its own resources: a massive AWS outage in was caused by a single error, and IBM Cloud's June planet-wide outage was exacerbated by its status page being hosted on its own infrastructure, which left customers completely in the dark about the situation.
Site reliability engineers should know better. But as whistleblower Frances Haugen told US Congress, Facebook puts profit before people, many of its efforts to do otherwise are shallow and performative, and its sins of omission are many and constant. Zhukov was convicted in May of multiple counts of fraud and money laundering.
He was arrested in Bulgaria in and extradited to America the following year. Future Chromium-based browsers under administrative control will be able to prevent users from viewing webpage source code for specific URLs, a capability that remained unavailable to enterprise customers for the past three years until a bug fix landed earlier this week.
Back on October 15, an employee of Amplified IT, a Google education partner since acquired by CDW, filed a bug report describing how the Chromium URL Blocklist — which administrators can set to conform with organization or enterprise policy — doesn't actually work. Managing Your Account. Privacy, Safety and Security.
Policies and Reporting. I'm seeing a problem with how Facebook appears on my web browser. Change platform:. If you're seeing a problem with how Facebook appears in your web browser, you could have a cache or temporary data issue.
WhatsApp still captures user metadata—data about messaging and contacts, albeit not the content of the messages themselves. Some of this is down to their very different approaches to user privacy, but a good deal is down to the limitations where end-to-end encryption is in place see below. Facebook knows that expanding end-to-end encryption has become a major provocation to the U.
Facebook has become the biggest defender of such security, somewhat ironically. Against that backdrop it is not likely to accelerate its plans for Messenger, provoking more of a lawmaker backlash, especially when its ownership and integration of WhatsApp—the driver behind encrypting Messenger—is potentially at risk.
Even if you tell Facebook not to track your collection, the data giant finds a workaround. Facebook has in the past warned users or the risks when messages are not end-to-end encrypted.
Enough said. The benefit of using end-to-end encrypted services is that data can be kept safe even in the event of the inevitable data breach because the service provider itself does not have the ability to decrypt user data.
The advertising resembles a regular Facebook post. It blends in with the rest of the page and is attractive. The new layout is user friendly. The advertising ad units are non-obtrusive and may provide a good user experience, which should be good news for advertisers as well as users.
Roger Montti is a search marketer with over 20 years experience. I offer site audits, phone consultations and content and SEJ » News. New Facebook Redesign The new design uses a Cards design style, where different sections are contained within card-like containers. This is the main Facebook home page.
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