A short presentation with some things I've discovered being important in Unified Communication migration projects I've worked on. Presentation from the Uninett Telephony Workshop in Trondheim, May 2012.
Yes, IPv6 is Real! How To Make Your Apps Work (And Be As Fast As Possible) Dan York
A talk I gave at Vermont CodeCamp 11 on September 28, 2019.
---- Abstract ----
How well do your applications or websites work over IPv6? As the world runs out of IPv4 addresses, new mobile networks are being deployed as “IPv6-only” with IPv6-to-IPv4 gateways at the edge of those networks. The result is that apps and sites that work natively over IPv6 will be faster for users than apps and sites stuck on only IPv4. Many leading services have already made this transition, and Apple now requires IPv6 for all apps in their AppStore. In this session, you’ll learn about tips and tools to successfully migrate your applications and sites to work over both IPv4 and IPv6. Bring your questions and concerns - and sharing of success stories would be welcome, too.
A presentation about new functionality in SIP that is really needed for Hosted PBX services, SIP on mobile phones and more situations. #SIP #Kamailio #Asterisk #TLS #MoreCrypto
A video with this presentation is available on YouTube at
https://www.youtube.com/watch?v=uqFNlqB_Ssw
2015 update: SIP and IPv6 issues - staying Happy in SIPOlle E Johansson
What's the state of SIP and IPv6?
- An update I gave at the Netnod spring Meeting 2015.
Nothing much is happening, despite the fact that we have proven real issues with dual stacks in SIP.
Enterprise networks using private IPv4 address space might not feel the need to migrate to IPv6. They are wrong and might be faced with severe consequences in the future.
A presentation that tries to set an IPv6 agenda for the SIP community. VoIP and IPv6 is a natural match. If we want unified communication to be truly global and unified - we need to build solutions on IPv6 and not Ipv4.
Yes, IPv6 is Real! How To Make Your Apps Work (And Be As Fast As Possible) Dan York
A talk I gave at Vermont CodeCamp 11 on September 28, 2019.
---- Abstract ----
How well do your applications or websites work over IPv6? As the world runs out of IPv4 addresses, new mobile networks are being deployed as “IPv6-only” with IPv6-to-IPv4 gateways at the edge of those networks. The result is that apps and sites that work natively over IPv6 will be faster for users than apps and sites stuck on only IPv4. Many leading services have already made this transition, and Apple now requires IPv6 for all apps in their AppStore. In this session, you’ll learn about tips and tools to successfully migrate your applications and sites to work over both IPv4 and IPv6. Bring your questions and concerns - and sharing of success stories would be welcome, too.
A presentation about new functionality in SIP that is really needed for Hosted PBX services, SIP on mobile phones and more situations. #SIP #Kamailio #Asterisk #TLS #MoreCrypto
A video with this presentation is available on YouTube at
https://www.youtube.com/watch?v=uqFNlqB_Ssw
2015 update: SIP and IPv6 issues - staying Happy in SIPOlle E Johansson
What's the state of SIP and IPv6?
- An update I gave at the Netnod spring Meeting 2015.
Nothing much is happening, despite the fact that we have proven real issues with dual stacks in SIP.
Enterprise networks using private IPv4 address space might not feel the need to migrate to IPv6. They are wrong and might be faced with severe consequences in the future.
A presentation that tries to set an IPv6 agenda for the SIP community. VoIP and IPv6 is a natural match. If we want unified communication to be truly global and unified - we need to build solutions on IPv6 and not Ipv4.
A presentation for Kamailio World 2017 in Berlin: How Open Standards and Open Source affect national public radio broadcast. My personal view and opinions. Also, some information about Project IrisBroadcast.
As with any new technology, IPv6 requires a learning curve for network managers and IT administration and operations personnel. This presentation covers many of the current best practices for approaching and progressing with an IPv6 deployment.
Discussion slides for the SIP forum IPv6 task group conference call 12/12/12 covering issues with SIP DNS, SIP and locating next hop in a dual stack world and issues with Server Based ALG decisions for media paths.
Pv6 Tutorial for Beginners - Learn IPv6 (Internet protocol Version-6) in simple and easy steps. A beginner's tutorial containing complete knowledge of IPv6, IPv6 Features,
SIP and DNS - federation, failover, load balancing and moreOlle E Johansson
SIP use DNS to find a server for a specific URI, like sip:alice@example.com. With DNS a SIP service can provide failover, load balancing and much more. SIP without DNS is a broken solution. SIP and DNS rocks!
IPv6 configuration at CSCS
● Dual Stack approach
● Static addressing for networking equipment and servers
● Dynamic addressing for PC and guest networks
– Auto configuration with SLAAC
● But we still rely on DHCPv4 to distribute DNS
– Tests ongoing for:
● Distributing DNS via RA (RDNSS, RFC6106)
● DHCPv6
IPv6 deployment
5
● Configure the network part and FW/ACLs
– Test
● Configure IPv6 on the systems
– Test
– At this point the system uses IPv6 and IPv4 for outgoing
connections
● Publish the AAAA resource record into the DNS with short TTL
– If test is succesful: set normal TTL for the RR AAAA
– Now the system is fully IPv6 enabled
IPv6 lessons learned
7
● Some network devices send out RA even if they shouldn't
– Impact: machines get IPv6 global address
● Disable SLAAC autoconfiguration on all the servers
● Rogue RA:
– Impact: default gateway changed! No IPv6 connectivity anymore..
● Filter RA messages at the network level
● IPv6 ACL: be careful not to filter NS/ND messages
– Impact: you may break IPv6 connectivity
● On IPv6 ARP is replaced by ICMPv6 NS and ICMPv6 ND messages
● Firewall IPv6 limitations (CLI config needed, WebGUI not ready)
● Services not listening on IPv6. Remember to configure ssh, httpd, etc to
listen also on IPv6
IPv6 is the most recent version of the Internet Protocol (IP), and was developed by IETF to overcome the inevitable exhaustion of IPv4 addresses. In order to simplify the transition towards IPv6, the protocol iterated very little on how IPv4 operates other than offering more address space. This inadvertently produced the exact opposite of the intended effect: with no compelling new features for anyone outside of network engineering, IPv6 deployment has been hampered for decades, as developers find increasingly creative ways of efficiently using IPv4 address space rather than bearing the cost of transition.
In this talk, Fastly Network Engineer João Taveira discusses these protocol design failures and instead explain how Fastly re-architected its infrastructure around IPv6. By addressing IPv6 in a clean-slate manner, Fastly avoided perpetuating many of the mistakes of IPv4, and the resulting network architecture has the potential to significantly affect the performance, resilience, and economics of content delivery.
How do our work spaces impact our productivity? How can we enhance collaboration within (and across) geographically dispersed teams? This presentation merely poses these questions, provides some links to further information on the topics, and serves as a leaping-off point for discussion.
A presentation for Kamailio World 2017 in Berlin: How Open Standards and Open Source affect national public radio broadcast. My personal view and opinions. Also, some information about Project IrisBroadcast.
As with any new technology, IPv6 requires a learning curve for network managers and IT administration and operations personnel. This presentation covers many of the current best practices for approaching and progressing with an IPv6 deployment.
Discussion slides for the SIP forum IPv6 task group conference call 12/12/12 covering issues with SIP DNS, SIP and locating next hop in a dual stack world and issues with Server Based ALG decisions for media paths.
Pv6 Tutorial for Beginners - Learn IPv6 (Internet protocol Version-6) in simple and easy steps. A beginner's tutorial containing complete knowledge of IPv6, IPv6 Features,
SIP and DNS - federation, failover, load balancing and moreOlle E Johansson
SIP use DNS to find a server for a specific URI, like sip:alice@example.com. With DNS a SIP service can provide failover, load balancing and much more. SIP without DNS is a broken solution. SIP and DNS rocks!
IPv6 configuration at CSCS
● Dual Stack approach
● Static addressing for networking equipment and servers
● Dynamic addressing for PC and guest networks
– Auto configuration with SLAAC
● But we still rely on DHCPv4 to distribute DNS
– Tests ongoing for:
● Distributing DNS via RA (RDNSS, RFC6106)
● DHCPv6
IPv6 deployment
5
● Configure the network part and FW/ACLs
– Test
● Configure IPv6 on the systems
– Test
– At this point the system uses IPv6 and IPv4 for outgoing
connections
● Publish the AAAA resource record into the DNS with short TTL
– If test is succesful: set normal TTL for the RR AAAA
– Now the system is fully IPv6 enabled
IPv6 lessons learned
7
● Some network devices send out RA even if they shouldn't
– Impact: machines get IPv6 global address
● Disable SLAAC autoconfiguration on all the servers
● Rogue RA:
– Impact: default gateway changed! No IPv6 connectivity anymore..
● Filter RA messages at the network level
● IPv6 ACL: be careful not to filter NS/ND messages
– Impact: you may break IPv6 connectivity
● On IPv6 ARP is replaced by ICMPv6 NS and ICMPv6 ND messages
● Firewall IPv6 limitations (CLI config needed, WebGUI not ready)
● Services not listening on IPv6. Remember to configure ssh, httpd, etc to
listen also on IPv6
IPv6 is the most recent version of the Internet Protocol (IP), and was developed by IETF to overcome the inevitable exhaustion of IPv4 addresses. In order to simplify the transition towards IPv6, the protocol iterated very little on how IPv4 operates other than offering more address space. This inadvertently produced the exact opposite of the intended effect: with no compelling new features for anyone outside of network engineering, IPv6 deployment has been hampered for decades, as developers find increasingly creative ways of efficiently using IPv4 address space rather than bearing the cost of transition.
In this talk, Fastly Network Engineer João Taveira discusses these protocol design failures and instead explain how Fastly re-architected its infrastructure around IPv6. By addressing IPv6 in a clean-slate manner, Fastly avoided perpetuating many of the mistakes of IPv4, and the resulting network architecture has the potential to significantly affect the performance, resilience, and economics of content delivery.
How do our work spaces impact our productivity? How can we enhance collaboration within (and across) geographically dispersed teams? This presentation merely poses these questions, provides some links to further information on the topics, and serves as a leaping-off point for discussion.
The pictures that went with my (and the "audience's") words at the Internal Communicators Network event on March 4th, 2014 in Auckland. Intended as a conversation starter.
Otago Uni Presentation on Social Media and The Invisible Revolution, 28 May 2009Simon Young
iJump social media explorer Simon Young's presentation to first year marketing students at Otago University in Dunedin, New Zealand.
It tells the story of the revolutionary times we're in, and what companies must do to survive and adapt. Social media plays a part, but so does organisational culture.
Connecting Commnities - online tools for networking for community groupsSimon Young
A presentation to the NZ Association of Community Access Broadcasters. A bit of a return to my roots as my career began in niche broadcasting at NZ's Christian radio network, which is where I began to learn about virtual communities. Hence the first message - it's not about technology, it is about communities.
This presentation outlines some of the many, many tools available, mostly for free.
mobile access for sap siebel remedy sql navision lotus notes ms exchange public folders doc links oracle mysql ibm db2 bluetooth printer barcode scanning. mobile access for sap siebel remedy sql navision lotus notes ms exchange public folders doc links oracle mysql ibm db2 bluetooth printer barcode scanning.
Small Business are inherently good at networking, keeping in touch with customers and providing great customer service. As technology changes and the behavior of their customers change small businesses adopt to new technology.The Small Business Success Index found that Small business adoption of Social Media grew 24% over the past one year.
This presentation will describe the tools that small business can use and have a plan to follow that they can apply back in their business.
Cole Information and DYL's James Angel team up to provide details on how VoIP technology can take your small business to the next level. During this half-hour webinar, you'll learn what VoIP is and the benefits of using it in three crucial aspects of the lead nurturing process. If you are a marketer, in sales, or own your business, you don't want to miss this. You'll get relevant tips and techniques to improve your conversion and fill your sales pipeline.
What is SIP Trunking?
How good is the ROI?
Benefit #1: Local Phone Numbers with Centralized Call Management
Benefit #2: Control and Security
Benefit #3: Increased productivity and collaboration
Benefit #4: Scalability
Benefit #5: Faster Disaster Recovery
Benefit #6: Foundation for Unified Communications / WebRTC
WebRTC Takes UC Further – With Ingate the Future is Soon
In a hyperconnected economy, businesses need tools that empower employees to work together and get more done, anytime, anywhere, using the devices they prefer. SIP Trunking enhances mobility and presence, and provides end-to-end unified communications applications, among other advantages. This paper explains how companies can simplify company-wide business communications using SIP-to energize communications, productivity, collaboration, and business growth.
Mobile Networks as Secure and Reliable Communication Platform for Smart HomeAllSeen Alliance
Dr. Jiri Hosek, Brno University of Technology (Czech Republic) gave this presentation at the AllSeen Alliance's Partner Programme at Mobile World Congress 2015.
SIPfoundry CoLab 2013 - Specific customer case studies for sipXecs and ROI an...SIPfoundry
At the SIPfoundry CoLab users conference Pythian, Lafayette College, and Francis Tuttle University presented specific case studies on how they evaluated, selected, and eventually implemented sipXecs for their company or campus.
Inspired by my work on understanding the effects of the EU cyber resilience act, I made this presentation on vulnerability handling - SBOM, Vex, CVE, CVSS, CWE and more.
Introduction to the proposed EU cyber resilience act (CRA)Olle E Johansson
A short introduction to the proposed EU Cyber Resilience Act. It's a large document to parse, so please don't take my words as a truth, just indications of what will come. The CRA will impact everyone that distributes software and connected devices on the EU market, so it's important to stay up to date with this regulation.
Januscon 2019: Slides from my short talk about the need for a federation solution to connect all isolated WebRTC and SIP islands out there. Sorry for the lack of text, hopefully it will be available in a streamed version soon.
Photos (C) Olle E. Johansson
A talk about me discovering new architectures, new ways of building scalable realtime platforms #SIP #WebRTC #Kamailio #MQTT #NODERED
Watch it live at https://www.youtube.com/watch?v=BbfUXUWtxIg
Introduction to WebRTC used in the Stockholm WebRTC Meetup February 16th 2017. Talks about the underlying architecture - RTP, Turn, STUN, Ice and the world of changing IP networks
Realtime communication over a dual stack networkOlle E Johansson
Fosdem 2017: A short talk about dual stack (IPv4 and IPv6) issues when using SIP, WebRTC, XMPP and other realtime platforms in a dual stack world - where both client and server is connecting to the new and the old Internet.
Side note: Uploads to slide share doesn't work on IPv6-only networks.
My talk at Voip2day 2016 in Madrid (organised by Avanzada 7 in Malaga).
This talks cover recent trends in realtime communication, from VoIP to WebRTC and Internet of Things
A presentation covering work that needs to happen. We jokingly came up with a non-existing organisation that maintains a reference profile for SIP. While the organisation is just a joke, the work is quite serious.
A quick introduction to Kamailio - the leading Open Source SIP server (based on OpenSER and SER). Kamailio is quite different than Asterisk, FreeSwitch and many other VoIP platforms - why is that and how do you start getting your head around Kamailio?
A presentation about how we can make the Internet hard to monitor - how we can and should encrypt more communication. This version includes a presentation of the TLS protocol.
Changes in 2.2: Added quotes from Viktor Dukhovni's IETF RFC 7435 about Opportunistic Security
Reboot the Open Realtime Revolution - #MoreCrypto (Fall 2014)Olle E Johansson
My talk at Voip2day 2014 in Madrid, Spain and Elastix World 2014 in Santiago, Chile. Asterisk is now 15 years old and the revolution has faded away and is now part of regular business. It's time to restart and look forward, build new things and include security by default. Security needs to be in focus for everyone in VoIP and realtime communication during the coming year.
We need to protect our Internet communication - from basic web surfing to IP telephony, E-mail and Internet of things. This presentation gives some background and introduces one of the core security protocols - TLS, Transport Layer Security. This presentation is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
Update: See http://www.slideshare.net/oej/morecrypto-with-tis-version-20
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
2. 1. Learn and lab
• Install an Asterisk or a FreeSwitch server
• Buy a few different SIP phones
• Get SIP softphones
• Understand the technology
• Attend this workshop!
3. 2. Take inventory
• Check all the PSTN lines
• PRI lines, internal leased lines, alarms,
elevator phones, POS connections
• Check current equipment
• Protocol support in phones and PBX
• SIP or PRI trunks in the PBX
4. 3. List used PBX
services
• List all current PBX services
• Try to understand who uses what
• Who depends on what?
• Find the set that few uses and no one
depends on and delete it from the list
• Focus on the important services and the
new services - presence and IM
5. 4. Identities
and name space
• The address plan is important
• Phone numbers and internal numbers
• SIP addresses
• Both email-style and numeric
• Domain management
• LDAP/AD integration
6. 5. Migrate, migrate
• Is there a way to connect the new platform
with the old
• Can you migrate department by
department or in some other way?
• Synch this with cancellation of old lines
7. 6. Integrate
• There is a cost of managing user accounts
and groups
• Try to build on the IT-departments systems
• LDAP, Active Directory
• The new system needs to be managed like
any server - SNMP, Nagios/Icinga and other
management platforms
8. 7. Work with open
source
• Build local knowledge and participate
• Or hire consultants and have them
contribute back
• Consider sharing source code with fellow
institutions
• Look at it from a professional and financial
point of view.
9. 8. Security
• Consider which type of security that is
needed for every use case
• CDRs and logs contains important
information
• Some phone calls or networks may need
security
10. 9. Integrate cell phones
• Mobile extensions
• Control PBX services in smart phones
• Callback, dial-through
• Wifi/Softphone reachability when travelling
• Make cell phone users part of the platform
11. 10. It’s all about
marketing
• You have to sell the new platform to the
users
• Before you do the switch!
• Let them be part of the project
• Make it easy to learn and use
• This requires hard work
12. Most important:
Use open standard protocols to get interoperability
in your realtime communications network.
AVOID VENDOR LOCK-INS.