Alcatel-Lucent Launches the Network Services Platform for Carrier SDN
Alcatel-Lucent expands its carrier SDN portfolio with Network Services Platform.
Alcatel-Lucent expands its carrier SDN portfolio with Network Services Platform.
Your development team has completed weeks of work, delivering their masterpiece-an application-to IT for deployment, but it doesn’t work.
See, the developers made use of a different port, that now needs to be opened on the firewall so end users can communicate with the software. IT changed the firewall rule, but didn’t tell development, so they never even knew it was an issue. Later, they create another application with the same issue, except this time, it will be deployed in a different environment.
No procedure or policy was created to capture all of the changes necessary to successfully deploy the app, so the same thing happens again. It’s a vicious cycle.
IT departments struggle to manage thousands of configurations and hundreds of applications with everyone working in silos. Teams who develop the apps frequently are not on the teams that use them. Meanwhile, operations teams deploy apps they didn’t write and have to convey to the development team when changes need to be made in order for them to work in this new and foreign-to-development thing called "a production environment".
Sound familiar?
Today’s IT environments are extremely complex. In the past, applications and hardware were closely connected. Apps came from Continue reading
Well, if you thought SDN introduced a lot of terminology, you’ll love NFV! The good news is that ETSI, which defines NFV, does a great job documenting NFV, with extensive term and acronym lists to support other documents about the details of NFV architecture. Several of the ETSI NFV docs provide some great stepping-stones for understanding the basic concepts and terminology, which is where we’ll go in this post.
This is the last in a related series! The other posts:
One of the challenges with this blog is figuring out how much prior knowledge to assume. If you don’t know much at all about NFV, read this section for a quick intro. Otherwise, skip to the next heading.
Briefly…
Think of every networking device used in the IT world. Those include routers, switches, firewalls, intrusion detection systems, load balancers, and so on. Traditionally, those devices have indeed been devices – purpose built hardware, running some OS that performed the networking function.
While you’re thinking of the old way to network, Continue reading
Another question I got in my Inbox:
What is your opinion on NAC and 802.1x for wired networks? Is there a better way to solve user access control at layer 2? Or is this a poor man's way to avoid network segmentation and internal network firewalls.
Unless you can trust all users (fat chance) or run a network with no access control (unlikely, unless you’re a coffee shop), you need to authenticate the users anyway.
Read more ... Docker and its ilk could be getting more OpenStack support soon — but it took a few OpenStack Summits to make it happen.
For best article visual quality, open Tutorial: Email server for a small company – including IMAP for mobiles, SPF and DKIM directly at NetworkGeekStuff.
A few months back my wife started a small business. Of course I was the one to build the “IT stuff” here that included a website, some reservation system on it for customers (php programming here), local network in the office and customer area and other things. Most of that was all pretty common tasks for me with the exception of one, building an email system for a company emails. So I built it and since it was new and interesting experience for me, I will share here a quick tutorial (or better call this a cookbook?) to replicate the very minimum system.
Now also let me state here that I really missed somehow in my life running a real email system so far. And it was a little challenge to setup it properly for the first time. I always thought in the past that installing SMTP daemon in linux and activating it for all local users was all that I will ever need (because up to this point my needs were only to receive Continue reading
OpenStack's new app catalog lets developers swap tools and applications.