Dan
thebsdbox.co.uk
Dan
@thebsdbox.co.uk
Tinkerer extraordinaire 👨‍🔧 mainly eBPF 🐝, Kubernetes, Cilium and kube-vip.io
Getting the Heptio band back together 😀
November 12, 2025 at 12:42 AM
Excellent afternoon talking about Kubernetes networking and Virtualisation on Kubernetes.
November 10, 2025 at 8:16 PM
Just heard Kubernetes 2.0 is about to be announced. #kubecon
November 9, 2025 at 1:24 AM
Reposted by Dan
Come and replace me at @hiveit.co.uk!

They're a lovely bunch of people with a real focus on improving user experience and accessibility.

If you've got any questions about the role I'd be happy to have a chat.

www.hiveit.co.uk/careers/seni...
Senior Front End Software Engineer | Careers at Hive IT | Hive IT UX Design and Development Sheffield | Hive IT
We are looking for a UK-based Senior Software Engineer with 5+ years of professional experience in front end engineering to join our team. This role would suit a person with a background in web develo...
www.hiveit.co.uk
November 6, 2025 at 9:56 AM
Had a few bits of @kube-vip.bsky.social clothing made 🐙. All of it make me look like I work for a fish mongers. 🫠
November 5, 2025 at 10:42 PM
Reposted by Dan
Make egress traffic look like ingress allowed Loophole Labs leverage XDP to 12x the throughput of iptables, and all without kernel patches 📈

eBPF is freedom to rethink how the kernel works.
Using XDP for Egress Traffic
XDP only works for ingress. We found a loophole that lets it work for egress. Here's how we did the impossible.
loopholelabs.io
November 5, 2025 at 11:00 AM
Anyone considering SIG-BOULDERING. 🧗🏻 next week at #kubecon
November 4, 2025 at 10:04 PM
Reposted by Dan
An eBPF Loophole: Using XDP for Egress Traffic

XDP is Linux's fastest packet processor but only handles incoming traffic. We found a loophole in how the kernel determines packet direction to make it work for outgoing traffic too!

Blog post with details 👇

loopholelabs.io/blog/xdp-for...
Using XDP for Egress Traffic
XDP only works for ingress. We found a loophole that lets it work for egress. Here's how we did the impossible.
loopholelabs.io
November 4, 2025 at 6:24 PM
Reposted by Dan
Great post by @alex.sorlie.io
An eBPF Loophole: Using XDP for Egress Traffic

XDP is Linux's fastest packet processor but only handles incoming traffic. We found a loophole in how the kernel determines packet direction to make it work for outgoing traffic too!

Blog post with details 👇

loopholelabs.io/blog/xdp-for...
Using XDP for Egress Traffic
XDP only works for ingress. We found a loophole that lets it work for egress. Here's how we did the impossible.
loopholelabs.io
November 4, 2025 at 9:14 PM
Managed 25 minutes in this thing before I was starting to overheat 🥵
October 31, 2025 at 2:35 PM
Come join me in 20 minutes, rumour is i'll be doing this in Halloween Fancy Dress too (whilst writing eBPF code) 🧟‍♂️
Join @thebsdbox.co.uk this Friday to get hands on with eBPF and Kprobes.

eBPF & Cilium Office Hours
📆 Friday, 31 October, 2pm GMT
🎥 Livestream: www.youtube.com/live/JMnG5Hf...
October 31, 2025 at 1:40 PM
Reposted by Dan
Join @thebsdbox.co.uk this Friday to get hands on with eBPF and Kprobes.

eBPF & Cilium Office Hours
📆 Friday, 31 October, 2pm GMT
🎥 Livestream: www.youtube.com/live/JMnG5Hf...
October 29, 2025 at 11:13 AM
Capturing keystrokes through eBPF ⌨️
October 27, 2025 at 7:38 PM
Another day another Kubernetes networking doesn't work "issue" because someone misspelt a selector and/or label. 🫠
October 27, 2025 at 11:36 AM
Just finished the John Candy documentary. He was pretty much in movies of my time so it hit pretty hard. I’d recommend it.
October 12, 2025 at 9:33 PM
Reposted by Dan
**Using a Laptop as an HDMI Monitor for an SBC**

Wrote up some quick notes on how I use HDMI to USB capture cards to breathe new life into old laptops as HDMI monitors for my single board computers (SBCs).

danielmangum.com/posts/laptop...
October 9, 2025 at 1:40 PM
Pretty close to the episode of Brookyln nine nine where they go undercover in the library.
October 9, 2025 at 12:55 PM
Reposted by Dan
eBPF Summit 2025: Hackathon edition is live! ebpf-summit-2025.devpost.com

#eBPF #eBPFSummit
eBPF Summit: Hackathon Edition 2025
Unleash the power of eBPF!
ebpf-summit-2025.devpost.com
October 6, 2025 at 12:40 PM
Been wanting to play with in kernel (kTLS) for a while, my mTLS proxy for encrypted pods now moves all encryption into the kernel 🤩
September 19, 2025 at 4:19 PM
Reposted by Dan
"eBPF Foundation Awards $100,000 in Research Grants to Advance eBPF Safety and Efficiency" ebpf.foundation/ebpf-foundat...
eBPF Foundation Awards $100,000 in Research Grants to Advance eBPF Safety and Efficiency – eBPF
ebpf.foundation
September 17, 2025 at 1:48 PM
Reposted by Dan
Pre-2020 I was going to meetups in Leeds, Manchester, Nottingham and even London - these days I just don’t have the energy to do that but I feel like I really miss out on community
September 8, 2025 at 7:54 AM
Came back for 13 local legends in the Peak District this weekend.
September 7, 2025 at 9:19 PM
Unacceptable… immediately had to get on my bike to rectify the situation.
September 6, 2025 at 6:06 PM
Live footage of me configuring a Cisco switch tomorrow on eCHO 😑
September 4, 2025 at 2:25 PM
www.youtube.com/watch?v=KiXT...

If you're wanting to know more in detail, I step through the OOM eBPF implementations here 😀
September 2, 2025 at 8:32 AM