Chef Habitat Builder Focuses on Easing Container Management
Challenge will be in garnering attention from developers.
Microburst: Update on the HTML Home Network Diagram
Last week I published an article called Making a Clickable HTML Network Diagram using OmniGraffle. One of the questions I was asked was whether I’d tried doing the same in draw.io or Gliffy. I have not, although I do use Gliffy a fair amount, and I have dabbled with draw.io.
Thankfully, Keith Miller (@packetologist) is on hand to provide the answer! Keith has put together an article mirroring a similar process using the free (and platform-agnostic) draw.io. Definitely worth a read, and a great example of a free tool making our lives way easier.
Link: CLICKABLE HTML NETWORK DIAGRAMS WITH DRAW.IO
Thanks, Keith for the excellent demonstration!
If you liked this post, please do click through to the source at Microburst: Update on the HTML Home Network Diagram and give me a share/like. Thank you!
Adminstravia 20171009
Where’s Russ?
This is my second week of PhD seminars this fall—the only time in this program I intend to take two seminars back to back. One of the two was, in fact, very deep philosophy, so I was pretty taxed trying to pull the material together.
At the same time, the book has passed through technical review, and is now in author review. I hope it soon be in proofs. The combination of these two things, the book and the PhD work, along with multiple other things, is what caused me to call a pause in blogging for these two weeks. The date to watch is the 29th of December. It might be released earlier, but it is hard to tell right now. I will do a post a little later this week describing the book for those who are interested.
Tonight (Monday) I will be recording a new Network Collective show on the Intermediate System to Intermediate System (IS-IS) protocol, and we have a long list of History of Networking guests to bring on. The history material has turned out to be absolutely fascinating; I am thankful we have the connections available, and the recording venue, and someone Continue reading
The 2017 SDxCentral Future of Converged Data Center Survey is Here!
Take survey and enter to win one of two $300 Gift Cards redeemable at various retailers including Amazon, Target, Visa Virtual Card, etc.
Lumina and Noviflow Seek to Disrupt the MPLS Router Market
SD-core allows gradual migration from legacy core routers.
Worth Reading: Open Source Licenses
The post Worth Reading: Open Source Licenses appeared first on rule 11 reader.
First Practical Workshop on IoT to Increase Awareness and Interest in Ethiopian Universities
The Department of Computer Science College of Natural Sciences of the Addis Ababa University (AAU), in collaboration with the Internet Society and International Center for Theoretical Physics (ICTP) successfully concluded the 1st practical workshop in Ethiopia on Internet of Things (IoT). The workshop, which took place in Addis Ababa, Ethiopia, from 23-29 September 2017 aimed at increasing the awareness and interest of IoT amongst Universities in Ethiopia and in the long run enhance the understanding and involvement of Africans in IoT standardization at the Internet Engineering Task Force (IETF).
The workshop came at an important crossroad as we are at the beginning of a new revolution, witnessing our pots and cups turned to be part of the computing world. The wrist watch no longer tells us the “time” only, but also a lot more information – from the status of the weather to our health. Our “things” can be enabled to compute and even communicate to one another; and this takes us to new mode of computation known as IoT.
Dawit Bekele, Director of the African regional bureau of Internet Society reflected on this issue saying that “the potential of IoT in all Continue reading
Reuters: HP Enterprise let Russia scrutinize cyberdefense system used by Pentagon
One of the challenges that faces HP, Cisco and Dell is that running a sales company is losing relevance. They don’t make products they sell them. A sales company is one that sells products: any product, to anyone, anywhere for the right price. The technology giants have been buying products from various OEMs, bundling them […]
Task List Tracker for the Mac (DIY Version)
As a Mac user, how do you keep track of the tasks you need to complete? I find myself swamped in things that need doing and every day more things get added to my list. The problem is, in the past I’ve relied too much on my memory to keep track of what I need to do, and I’m sadly aware that there are more things on my task list than I can keep track of, and all too frequently I get into work and think “What was I going to do this morning? I’m sure there was something high priority, but…”
It should be easy, you’d think, to maintain a list of tasks, assign some kind of priority, and have that list readily accessible while using my computer. I suspect there’s an app (indeed, that there are many apps) for that, but while I have tried a few, somehow I’ve not managed to integrate them into my daily workflow. I spoke to a colleague about this, and he said that he keeps a text file on his Desktop listing all his open tasks, and he updates it as needed. If it works for him, maybe it would work for Continue reading
Solving the Problem in the Right Place
Sometimes I have this weird feeling that I’m the only loony in town desperately preaching against the stupidities heaped upon infrastructure, so it’s really nice when I find a fellow lost soul. This is what another senior networking engineer sent me:
I'm belonging to a small group of people who are thinking that the source of the problem are the apps and the associated business/security rules: their nature, their complexity, their lifecycle...
Sounds familiar (I probably wrote a few blog posts on this topic in the past), and it only got better.
Read more ...Deploy360 @ ENOG 14
Our colleague Jan Žorž from the Deploy360 team will be presenting at the 14th Eurasia Network Operators Groups (ENOG 14) on 9-10 October 2017 in Minsk, Belarus. This is being preceded by workshops on Best Practices in IPv6 BGP and DNSSEC Operations.
Jan will be talking about his real life experiences with NAT64/DNS64 and will be demonstrating the NAT64check tool on Monday evening (17.00-18.15). Following after his talk is a BoF on the Internet-of-Things (18.30-19.30), which is also sure to include discussions about the importance of IPv6 to scale the expected many billions of devices in future.
We’d also like to highlight the Cloudflare update on IPv6, DNS, DNSSEC, CA certs from Martin Levy (Cloudflare) on the Tuesday (10.00-11.30), who seems to be managing to cover just about all the Deploy360 topics in one talk. And for routing security, Kirill Malevanov, (Selectel) will be discussing his experiences of IPv4 prefix hijacking.
More Information
The post Deploy360 @ ENOG 14 appeared first on Internet Society.
Support New Ways of Working To Connect The World
The World Telecommunications Conference (WTDC) begins today. This is a key moment to remind the world that together we can shape a digital future that puts humanity at the heart of the Internet. But to do this we need your help.
Help send the message that to close the digital divide we’ll need new ways of working, new ways of thinking, and new policies support it all.
Much of what we are speaking on at WTDC serve as real-world examples of the kinds of things we need policy and decision makers to support – community networking being a key focus.
We will keep you up-to-date on what is happening and what we need to do next the conference.
Here’s how you can help:
Take part in a Pre-Event Roundtable
On Sunday, October 8, 17:20 UTC (4:20 PM Argentina Local Time) Internet Society’s Vice President, Global Engagement Raúl Echeberría will speak on the importance of community networks at a Pre-Event-Private Sector Roundtable on Partnering for the SDGs. Watch it here.
Share Raul’s Blog
Raul’s wrote a critical blog to launch our WTDC message. Please share it across your channels.
“Every Connection Matters – Shape Tomorrow and Help Close Digital Continue reading
BGP ADD-PATH – Summary
Hi,
First things first, I have been getting a lot of requests to upload the lab’s which i illustrate as is, so i shall be uploading them to a Github page with initial and final-configs and Instead of vagrant i shall be using EVE-NG as a tool so that you guys can import them easily.
Going through Fabric-Path and CLOS concepts, got myself started with 3 Stage Clos and as a part of understanding it, discovered something.
Why – To make sure Servers at one end have equal cost path to the servers-at other end, at scale the spine accordingly optimizing the CAPEX.
Simple words, in the below topology, we need to make sure that R6 has equal cost to R7 and vice-versa.
Protocols and setup
-> OSPF for the entire domain and Ibgp to peer between RR (R2) and all other loopbacks, we use OSPF so that Ibgp peering will be over Loopback and also for load-balancing protocol Next-hops
-> Default routes on R6 and R7, load-balance (per-packet) on all-routers (where technically required)
-> R3 AND R4,R5 has static back to loopbacks of R6 and R7 respectively, advertising them into OSPF will defeat the purpose obviously Continue reading
Introduction to DHCP (Dynamic host configuration protocol)
Well Routers, servers, other key nodes require specific or static IP address and Clients can use an IP from a pool of available addresses. Minimum host configuration for Internet:
- IP address
- Subnet mask
- Default gateway
- DNS server IP
DHCP allows network administrator to assign a pool of available IP addresses for clients with additional configuration information such as default gateway, DNS IP, WINS IP, domain names
Addresses are leased, Cisco default is 24 hours
 |
| Fig 1.1- DHCP Server |
DHCP process
· Client boots up, sends a DHCPDISCOVER broadcast
· All available DHCP servers respond with DHCPOFFER containing proposed IP address, lease time, DNS IP; server checks that IP offered is not in use before making the offer by issuing a default 2 pings