NetLdn #28 – 10/02/2022

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+0.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event, to the NetLdn mailing list and in the NetLdn Slack, 1 hour before the event starts.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+0) onward, talks begin promptly at 1930hrs (UTC+0).

Talk 1: DDoS Attacks via Laundered DNS Traffic

Marek will be talking about DDoS attacks that rely on some well know public DNS services.

Presenter: Marek Isalski

Talk 2: Bruteforcing Android PINs

What if I told you that in 2022 you could still brute-force the PIN on an Android phone? I will show you how to turn your Kali Nethunter phone into a brute-force PIN cracking machine. Unlike other methods this works on phones out of the box, so you won’t need ADB access to your locked phone, or to have previously rooted the Operating System.

While not every phone is vulnerable, many are, and the version of Android doesn’t matter. Although Android itself is reasonable secure, each handset manufacturer has made their own lock-screen with custom brute-force protection and some of them are easily cracked.

Presenter: Andrew Horton (@urbanadventur3r)

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #27 – 13/01/2022

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event, to the NetLdn mailing list and in the NetLdn Slack, 1 hour before the event starts.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: 5G Private Networks: what are they and why are they needed?

Andy’s here to speak to us about 5G Private Networks. If you’ve ever wondered why our favourite vendors keep talking about running a self-contained 5G network instead of an equivalent WiFi network, then this is definitely a talk you’ll enjoy. Andy has decades of radio network experience, as well as hands-on experience with the emerging technology in this space, and we’re sure that this talk will be well worth your time.

Presenter: Prof. Andy Sutton

Talk 2: The Information Commissioner’s Opinion on Online Advertising

Jon’s an expert in all matters relating to data protection and online privacy, and his past talks have been engaging, timely and extremely pertinent to the running of our beloved Web. If he’s here speaking with us, then you can be certain that this is a topic that you’ll hear more and more about in the coming future.

Presenter: Jon Langley

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #26 – 09/12/2021

Christmas Drinks

Location: The Wheatsheaf, 25 Rathbone Place, Fitzrovia, W1T 1JB

We’re meeting at are usual venue for a few Christmas drinks and a festive chin wag. After that we’re heading over to Trefbash, no talks this month, instead we’re wishing each other well for the new year.

Trefbash

After a warm up at our usual location, you are welcome to stay there or join us at Trefbash, which is just a 10 minute walk down the road. Note that a ticket is needed for Trefbash: https://www.eventbrite.co.uk/e/trefbash-60-pirates-of-the-caribbean-tickets-172233714677

NetLdn #24 – 14/10/2021

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event, to the NetLdn mailing list and in the NetLdn Slack, 1 hour before the event starts.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: A few years in the life of a Network Automation Engineer

Anton will talk about the evolution of network engineers’ skills going hand in hand with the evolution of IT infrastructure and technologies of the past, present, and future, and what network engineers should do to stay relevant.

Presenter: Anton Karneliuk

Talk 2: As yet untitled: “a support hero’s story!”

A satirical look at how ‘helpdesk KPIs’ & other common practises, are masking the real problems with service desk support, and the reputational damage that this does to your existing IT. customers, and how management and/or third line support teams may often be oblivious to this.

Presenter: Andy Susich

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #23 – 09/09/2021

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event to the NetLdn mailing list and in the NetLdn Slack.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: TI-LFA FTW

A brief introduction to Segment Routing followed by an in-depth look at LFA technologies – focusing on how TI-LFA can use Segment Routing to provide complete coverage.

Presenter: Steve Crutchley (Claranet)

Talk 2: Snabb: I know someone at an ISP who writes their own network devices

…and they don’t have an army of programmers.

Max will talk about Snabb, a software toolkit for writing carrier grade networking applications that run on x86 servers using a high-level programming language.

He’ll give an overview of what Snabb is and what makes it work, show off how it is used by ISPs, and talk a bit about the current hardware and software ecosystem available to us in the commodity server market.

Presenter: Max Rottenkolber (inter-stellar)

Talk 3: Find out on the night!

The last talk will be disclosed on the night due to the nature of the content.

Presenter: Disclosed at the time

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #22 – 12/08/21

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event to the NetLdn mailing list and in the NetLdn Slack.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: Flowhouse – Next Generation Flow Analysis

Oliver will show how Flowhouse helps to provide relevant answers to questions of network operators, instead of plain old flow statistics.

Presenter: Oliver Geiselhardt-Herms

Talk 2: DNAT46 on Linux

Basil will be talking about how Mythic Beasts are building DNAT46, a stateless proxy service to allow IPv4-only clients to reach TCP ports on IPv6-only servers.

Presenter: Basil Fillan (Mythic Beasts)

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #21 – 08/07/21

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event to the NetLdn mailing list and in the NetLdn Slack.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: DNS the Hard Way(tm)

Taking something that should be simple, and complicating it to suit project requirements; Richard will discuss various different methods they’ve used to steer and load-balance Voice over IP clients to Session Border Controllers (SBCs).

Presenter: Richard PaTterson

Talk 2: Software development at Netflix

Nat will chat about how Netflix deploys multi-region services in AWS and delivers streaming contents to millions of users daily from their own CDN “Open Connect”, resulting in 15% of all internet traffic. Netflix is famous for its culture of “Freedom and Responsibility”.

Presenter: Nat Morris (Netflix)

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #20 – 10/06/21

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event to the NetLdn mailing list and in the NetLdn Slack.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: Traffic patterns from real-time video apps

Realtime video conference apps have significantly different traffic patterns from streamed video. This talk will describe those patterns (UDP, significant uplink usage, latency sensitivity, edge-to-edge) and explain why these engineering choices were made. I’ll discuss the bandwidth estimation and management strategies used in these apps. I’ll also give some pointers as to how to spot this traffic for filtering or prioritisation purposes.

Presenter: Tim Panton (Pipe)

Talk 2: An Evolution Of The Network Engineer

This talk explores what happens when a business grows, and the role of the network becomes critical: you have more servers to connect, more data to transport, more services reliant on each other. You can’t afford to provide a bad experience to your customers, nor “throw more people at the problem” to solve it. You have to move fast and be reliable in today’s world — even when sharks eat your fibre cables.

Your knowledge and skills will be the tools to approach the growth, but you will deal with never-seen-before challenges — including esoteric ones. You will also begin to realise that 1% means thousands, millions or hundreds of millions of people, and indeed, you won’t have time for manual fixes.

We identified common knowledge and skill gaps that Network Engineers have when faced with the challenge of operating a large-scale network. We will explain why they are important and give an approach to bridging them to prepare yourself for a future ahead.

Presenter: Elena Sanchez & Jose Leitao (Facebook)

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #19 – 13/05/21

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC+1.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event to the NetLdn mailing list and in the NetLdn Slack.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC+1) onward, talks begin promptly at 1930hrs (UTC+1).

Talk 1: Network Analysis 101 with Batfish

A veritable ‘101’ lesson on the topic of network automation and network analysis, specifically with the open-source project Batfish. The talk will cover an introduction to Batfish, its key strengths and how it can be used to validate various network functions e.g., device configuration, control plane operation, and dataplane reachability.

Presenter: Rick Donato

Talk 2: Ask Me Why I Don’t Like DDoSers

This will be a talk about network security, risk management, cybercrime incident response… and one of Marek’s toughest days in the office for a while. A lot has been said about this talk, and given the rise in ransom-based attacks, it is critical that more discussion is had around how to deal with these situations, when they do inevitably arise.

Presenter: Marek Isalski (Fealix)

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.

NetLdn #18 – 08/04/21

Location: Zoom

We will once again be combining powers with our NetMcr friends for a joint meeting. We’ll be starting at the slightly later (by NetLdn standards) time of 1930hrs UTC.

The meeting will be held online using Zoom. The meeting room ID and password will be shared on the evening of the event to the NetLdn mailing list and in the NetLdn Slack.

Please set your full name in the Zoom client before joining the meeting, they will be validated for admission.

Join from 1915hrs (UTC) onward, talks begin promptly at 1930hrs (UTC).

Talk 1: RF Spectrum for Mobile Networks

Hot off of the press from the recent radio frequency auctions, Andy’s here to give us an update on how the dust has settled on the mobile network frequency allocations in the UK, how that will affect the 4G and 5G networks. There may even be a little speculation on what else may happen in the near future (if we’re very well behaved).

Presenter: Andy Sutton (BT)

Talk 2: Viking Monitoring: A very punny adventure!

Supercomputers! Yes, no, really. York University still maintains a supercomputer, by the name of Viking (of course). But how does one look after such a beast? More precisely, how do you keep track of 175 compute nodes all working together? Nat’s unique insights into how the University monitor their clustered supercomputer is sure to be an enjoyable & informative run through looking after one of the more illusive style of networked systems.

Presenter: Nat Lasseter (York University)

Talk 3: Your Forwarding Plane as Code: How, What, and Why

Aaron will spend ~20 minutes arguing that if you love YAML (who doesn’t?! -ed) then you should love P4. If you’re all about infrastructure as code, then hooooo boy let’s talk forwarding plane!

PRESENTER: Aaron A. Glenn (predicted paths)

After Talks: Networking for Networkers

Stay in the meeting room and have a free-for-all chit-chat about whatever is on your mind. This is a bring-your-on drinks and nibbles session.