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Category Archives for "Networking"

We’ve Added A New Juniper Security Technology Course To Our Video Library!

Our Newest Juniper course, Juniper Security (JSEC) Technology is now live! Whether you’re preparing for your Juniper Specialist Exam, or just looking to brush up on Juniper SRX Devices, this course is an excellent resource for IT security professionals. Tune in for 3 hours of instruction with Juniper expert Mauricio Spinelli by logging into your members account here.



About The Course:

In this course you will learn about the Junos Security platform and be prepared for the Juniper Specialist exam (JN0-332). You will learn about the benefits, architecture and how to deploy environments with Juniper SRX devices. This is the introduction of Security platform of Juniper Networks, after complete this course you will be ready to deploy, manage and troubleshooting Juniper SRX devices.

Show 396: Ignition Launch And The State Of The Industry

Today on the Weekly Show, the Packet Pushers officially launch Ignition, our new membership site.

Ignition offers exclusive content to help you develop as a networking and IT professional, including blogs, white papers, videos, and e-books. Over time we’ll add in-depth technical courses and other materials to help you advance your career.

You can join for free and get limited access to the site (plus Link Propagation and the Human Infrastructure Magazine), or get a premium membership for $99 a year for full access.

We also spend some time reviewing the state of the networking industry, including a look at the true drivers of automation, whether Intent-Based Networking is a real thing, why legacy networking vendors are flocking to multicloud as a strategy, the trend of AI-washing, and whether SD-WAN is going to kill private circuits.

Sponsor: Cumulus Networks

Cumulus Networks presents Networking with S.O.U.L – Simple, Open, Untethered Linux. These 4 tenants enable modern, agile networks be built to support the new demands of the business. Save an average of 45% on CapEx and approximately 74% on OpenEx by adopting these SOULful networking solutions. Learn how to leverage the top 5 automation tips and tricks Continue reading

Tale From The Trenches: The Debug Of Damocles

My good friend and colleague Rich Stroffolino (@MrAnthropology) is collecting Tales from the Trenches about times when we did things that we didn’t expect to cause problems. I wanted to share one of my own here about the time I knocked a school offline with a debug command.

I Got Your Number

The setup for this is pretty simple. I was deploying a CallManager setup for a multi-site school system deployment. I was using local gateways at every site to hook up fax lines and fire alarms with FXS/FXO ports for those systems to dial out. Everything else got backhauled to a voice gateway at the high school with a PRI running MGCP.

I was trying to figure out why the station IDs that were being send by the sites weren’t going out over caller ID. Everything was showing up as the high school number. I needed to figure out what was being sent. I was at the middle school location across town and trying to debug via telnet. I logged into the router and figured I would make a change, dial my cell phone from the VoIP phone next to me, and see what happened. Simple troubleshooting, Continue reading

Announcing the Internet Society’s New President and Chief Executive Officer

Today is an exciting day for the Internet Society. It gives me great pleasure to announce, on behalf of the Internet Society’s Board of Trustees, that Andrew Sullivan has been selected as the Internet Society’s new President and Chief Executive Officer (CEO). He will formally take up his position on September 1, 2018.

This selection now successfully concludes the CEO search process we began last November.

The CEO selection process involved extensive work on the part of the Board but gave us much food for thought. We received a wealth of extremely impressive applications from more than a hundred internal and external candidates covering a huge range of talent and experience. We had some thought-provoking conversations as part of the process and I would like to express my sincere appreciation to everybody who applied for the position.

I believe Andrew’s success in being selected for this crucial role represents an enormous opportunity for the Internet Society and the global Internet.

Andrew brings a wealth of Internet industry and technology experience with him. He has served in a number of past roles, including time at Dyn, now a Global Business Unit of the Oracle Corporation, managing Domain Name System (DNS) development Continue reading

IDG Contributor Network: Using a hybrid cloud file system to meet your storage needs

An increasing number of businesses are moving their data to the cloud to take advantage of the cost, scalability and efficiency benefits associated with not having to procure or maintain significant amounts of hardware. And indeed, cloud data storage can certainly help organizations achieve superior ROI; however, oftentimes when choosing a cloud-only file system such as Box or Dropbox, these organizations encounter significant problems – some of which can actually outweigh the benefits. These problems include: Due to inherent limitations in cloud protocols, accessing files from the cloud is rife with latency. This is particularly prevalent when accessing large files or simultaneously accessing a large number of files. Active directory access permission control. The permission schemes for cloud-based file systems are often different than your on-premises environment, causing Active Directory permissions to become an issue for both user and administrator levels. User interface. Losing the familiar file server interface, especially the mapped letter drive interface for a network share, forces users to learn and entirely new user interface. In addition to the increased stress, it can also reduce user efficiency in the short term. Shadow IT. Since the files are no longer located within the company’s infrastructure, IT Managers lose Continue reading

Is implementing and managing Linux applications becoming a snap?

Quick to install, safe to run, easy to update, and dramatically easier to maintain and support, snaps represent a big step forward in Linux software development and distribution. Starting with Ubuntu and now available for Arch Linux, Debian, Fedora, Gentoo Linux and openSUSE, snaps offer a number of significant advantages over traditional application packaging. Compared to traditional packages, snaps are: easier for developers to build faster to install automatically updated autonomous isolated from other apps more secure non-disruptive (they don't interfere with other applications) So what are snaps? Snaps were originally designed and built by Canonical for use on Ubuntu. The service might be referred to as “snappy”, the technology “snapcraft”, the daemon “snapd” and the packages “snaps”, but they all refer to a new way that Linux apps are prepared and installed. Does the name “snap” imply some simplification of the development and installation process? You bet it does!To read this article in full, please click here

The Lustre HPC file system has another new home — and it’s the right one

After years of bouncing from one company to another, the Lustre file system that is so popular in high-performance computing (HPC) has been sold yet again. This time it went to an enterprise storage vendor. Finally, it’s in the hands of a company that makes sense.DataDirect Networks (DDN) announced it purchased the Lustre File System from Intel this week as Intel looks to pare down non-essential products. DDN got all assets and the Lustre development team, who are undoubtedly relieved. The announcement was made at the International Supercomputing Conference (ISC) in Frankfurt, Germany.[ Check out AI boosts data-center availability, efficiency. Also learn what hyperconvergence is and whether you’re ready for hyperconverged storage. | For regularly scheduled insights, sign up for Network World newsletters. ] Lustre's history Lustre (which is a portmanteau of Linux and cluster) is a parallel distributed file system that supports multiple computer clusters with thousands of nodes. It started out as an academic research project and was later acquired by Sun Microsystems, which was in turn acquired by Oracle.To read this article in full, please click here

Cryptocurrency API Gateway using Typescript+Workers

If you followed part one, I have an environment setup where I can write Typescript with tests and deploy to the Cloudflare Edge with npm run upload. For this post, I want to take one of the Worker Recipes further.

I'm going to build a mini HTTP request routing and handling framework, then use it to build a gateway to multiple cryptocurrency API providers. My point here is that in a single file, with no dependencies, you can quickly build pretty sophisticated logic and deploy fast and easily to the Edge. Furthermore, using modern Typescript with async/await and the rich type structure, you also write clean, async code.

OK, here we go...

My API will look like this:

Verb Path Description
GET /api/ping Check the Worker is up
GET /api/all/spot/:symbol Aggregate the responses from all our configured gateways
GET /api/race/spot/:symbol Return the response of the provider who responds fastest
GET /api/direct/:exchange/spot/:symbol Pass through the request to the gateway. E.g. gdax or bitfinex

The Framework

OK, this is Typescript, I get interfaces and I'm going to use them. Here's my ultra-mini-http-routing framework definition:

export interface IRouter {
  route(req: RequestContextBase): IRouteHandler;
}

/**
 * A route
 */
export interface IRoute  Continue reading