Ever since system administrators have been in charge of managing servers and groups of machines, tools like monitoring applications have been their best friends. You will probably be familiar with tools like Nagios, Zabbix, Icinga, and Centreon. While those are the heavyweights of monitoring, setting them up and fully taking advantage of their features may be somewhat difficult for new users. In this article we will introduce you to Ganglia, a monitoring system that is easily scalable and allows to view a wide variety of system metrics of Linux servers and clusters (plus graphs) in real time. Install Gangila Monitoring in Linux Ganglia lets you set up grids (locations) and clusters (groups of servers) for better organization. Thus, you can create a grid composed of all the machines in a remote environment, and then group those machines into smaller sets based on other criteria. In addition, Ganglia’s web interface is optimized for mobile devices, and also allows you to export … [Read more...] about Setting Up Real-Time Monitoring with ‘Ganglia’ for Grids and Clusters of Linux Servers
Monitor a website for changes
Google has announced the launch of a new Chrome version for Android devices. The mobile browser is now being updated to version 42.0.2311.107, and while the improvements will not drastically change the way you browse websites on your mobile device, they do include a couple of new features, as well as the usual range of bug fixes and performance improvements.With the latest version of Chrome for Android, Google introduced the ability to monitor websites for changes in content. Set up the monitoring feature on your favorite website, and Chrome will fire up a notification when the content is changed. Unfortunately, this new feature will not work out of the box, as web developers need to implement the new Google Push API for Chrome. Possible use case scenarios include the ability to be notified when your order status changes. To prevent abuse, the user will have to explicitly set up permissions for these notifications, and the notifications messages themselves include a site setting … [Read more...] about Chrome v42 for Android brings new website monitoring feature
1. Zeo The Zeo Personal Sleep Coach is the first at-home device that allows people to track their sleep cycles over time. During the night, the user wears a soft headband with an embedded sensor that detects the brain’s electrical activity. That information is used to determine the user’s stage of sleep—light, deep or REM (when we dream)—and wirelessly sent to a bedside base station. In the morning, the display unit gives a summary of the previous night’s sleep, including how long a user slept, how many times she woke up, and the amount of time she spent in the various stages of sleep. A small memory card within the display unit stores the data, which can then be transferred to a computer and uploaded to a website that tracks the user’s sleep trends and offers advice for improving sleep. (The company is careful to point out that the Zeo is not a medical device and cannot diagnose sleep disorders.) Thus far, Zeo, a start-up based in Newton, … [Read more...] about Tools for Quantifying Yourself
On the heels of the major security breach at Equifax, millions of Americans are considering signing up for identity and credit monitoring. Equifax is even offering its own version, called TrustedID Premier, for free to all U.S. consumers for a year. Free credit and identity monitoring has become the salve that companies and government agencies dole out to consumers in the days after a security breach. When personnel records at the U.S. Office of Personnel Management were compromised in 2015, the government pledged three years of free identity monitoring to those affected. But there hasn’t been much research to into whether these solutions are actually helpful, or if there are meaningful differences between the 60 or so companies that sell them. Little is known about the methods and algorithms that each company uses to search for stolen information on the dark web, for example, which makes it hard to compare them. In March, the U.S. Government Accountability Office issued a … [Read more...] about After Equifax, What Will Credit or Identity Monitoring Really Do For You?
Aging wine is an art. Depending on the particular blend of vino, proper aging has the ability to drastically change a wine’s tasting notes, mouthfeel, and acidity. Typically, this is done over several years with some blends of wine benefitting from decade-long aging processes. In other words, patience is a virtue in the wine community.However, a small French startup located at CES 2016’s Eureka Park looks to drastically change this perception and officially unveiled the D-Vine connected sommelier, a smart brewing system that’s essentially a Keurig for wine. Naturally, we indulged in a taste test.Like pods for an automated coffee machine, the D-Vine requires owners use specially designed 10-centiliter bottles, which contain a particular wine of choice. From rosé and Saumurs to Pomerols and Bordeauxs, 10-Vins’ compatible wine list makes finding the perfect glass of wine an absolute breeze. Similar to owner a Keurig or Nespresso machine, owners must purchase … [Read more...] about Straight out of France, the D-Vine connected sommelier is like a Keurig for wine
The Web moves fast, and so does e-commerce. Blink and you might miss a fleeting piece of information or major sale on something you love. Instead of chugging Mountain Dew all night as you frantically refresh, you can now use Punchr to monitor webpage activity for you.The concept of Punchr is simple. There are things on the Web that you want to keep an eye on without actually having to watch at all times for changes. Punchr acts as your eyes. Find the webpage you’re interested in eyeing, tell Punchr exactly what it is you’d like to monitor, and set your marker. Any time an alteration occurs to that specific bit of information, Punchr will alert you to the update so you can act accordingly to the change. That’s the idea, anyway.Unfortunately, the execution wasn’t there in our experience with Punchr. The app is about as streamlined as possible, which is great. The primary interface is a stripped down Web browser with little more than an address bar and a back … [Read more...] about Punchr is a set of eyes always watching the Web for you (when it works)
As stories about cyber-bullying and its effects continue to make headlines, so do warnings about tuning into teens’ Facebooks and Twitters and Tumblrs. We are supposed to be ever-vigilant, spotting, reporting, and punishing the trolls. But those are well-known sites, with millions of users of all ages. What happens when the harassment is happening on a little-known social site whose main demographic is teenagers – and its format is Q&A, basically a welcome sign for bullying?These are just some of the questions being asked following the death of Hannah Smith, a 14 year old Briton who is believed to have killed herself after receiving abusive messages on Ask.fm, a social network for asking and answering questions. The death of someone so young has incited outrage, not only at the harasser but at Ask.fm for perceived safety failures. Prime Minister David Cameron called for a boycott of the site until it found a way to prevent further bullying, and many major advertisers, … [Read more...] about Is Ask.fm the Internet’s Neverland, or just a haven for adolescent bullies?
Europol on Friday announced that a team of agents from United States Immigration and Customs Enforcement, the U.S. Federal Bureau of Investigation and Eurojust have taken down more than 400 cybercrime services accessible via the Tor browser.They include the dark market Silk Road 2.0. Its operator, San Francisco resident Blake Benthall, was arrested, along with six Britons.Europol coordinated the action, which was dubbed "Operation Onymous.""Almost all crime now has an international nexus -- and especially within HSI, we have significant dependency on other partners in law enforcement here and in other countries," Gary Hartwig, special agent in charge of Homeland Security Investigations in Chicago, told the E-Commerce Times.In all, the cops arrested 17 vendors and administrators running the cybercrime sites. Officials seized about US$1 million worth of bitcoins, along with an estimated $225,000 worth of cash, gold, silver and drugs. Forty law enforcement agents reportedly collaborated … [Read more...] about The Law Scores a Victory Against Dark Net Denizens
As businesses gain a new appreciation of the power of data, they're discovering new tactics for sales and marketing that go far beyond what was possible in the past. It's not just big data and a technology-driven revolution -- it's also a shift in attitudes about data's place in the selling process, its role as a guide or as a reality check, and its ability to fuel new processes that drive greater sales performance.However, it's important to keep in mind the customer's perception of how data is being used. Otherwise, all the data-based changes you make could be worse for your business than distracting shiny objects -- they could be genuine customer turnoffs.Those turnoffs result from a failure to think like a customer. They're usually not based on privacy issues; they're more often the result of how businesses use data. Businesses are getting creative about how they use data types in conjunction with each other, and that's a good thing. Still, focusing too much on customer data, … [Read more...] about OPINION Wrangling Big Data: When in Doubt, Think Like a Customer