#networkengineering — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #networkengineering, aggregated by home.social.
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Currently in the middle of my #CCNA revisions. Finally got my hands on a #Cisco 2960 to have some fun with real equipment and move away from Packet Tracer.
I just rebuilt my homelab architecture. It's a classic but effective setup: #OPNsense firewall, managed switch, and multiple VLANs
I documented the whole topology, IPAM, and some troubleshooting steps on my personal wiki.
https://wiki.unclereaton.dev/doku.php?id=network:homelab_architecture (watch out - it's in French :D)
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Meine Firma stellt einen Network Engineer im Accessbereich ein!
Falls du Lust auf #MPLS und anderen #Netzwerkspaß hast, bewirb dich gerne.
https://www.jobvector.de/job/fachinformatiker-d1d836113b8febb9/
#getfedihired #fedihire #network #networkengineering #jobs #fiber #isp #remotejob #remotework #homeoffice
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Meine Firma stellt einen Network Engineer im Accessbereich ein!
Falls du Lust auf #MPLS und anderen #Netzwerkspaß hast, bewirb dich gerne.
Wir sind freundlich, aufgeschlossen & hilfsbereit und wir stellen Qualität über Quantität.
Home Office ist möglich!
https://www.jobvector.de/job/fachinformatiker-d1d836113b8febb9/
#getfedihired #fedihire #network #networkengineering #jobs #fiber #isp #remotejob #remotework #homeoffice
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Сетевой протокол **Yggdrasil** (версия 0.5.x) сейчас находится в активной фазе «работы над ошибками» перед переходом к крупному обновлению v0.6.
Вот основные технические апдейты и состояние проекта на май 2026 года:
### Технические новости и релизы
* **Оптимизация маршрутизации (v0.5.12+):** В последних патчах (февраль–апрель 2026) разработчики внедрили улучшенный алгоритм выбора пути. Теперь система минимизирует не только «стоимость» линка, но и дистанцию до цели в дереве топологии. Это исправляет старую проблему, когда пакеты могли идти длинным путем через «корень», игнорируя более быстрые прямые маршруты.
* **Быстрое восстановление:** Параметр maxbackoff (время ожидания перед повторной попыткой подключения к пиру) теперь можно снижать до **5 секунд** (раньше было минимум 30). Это критично для мобильных узлов и нестабильных mesh-соединений.
* **Ресурсоемкость:** Оптимизировано потребление памяти при расчете путей, что позволяет протоколу стабильнее работать на слабых роутерах и одноплатниках (типа Orange Pi/Raspberry Pi).
### Главный вызов: «Гонка вооружений» за корень
Одной из самых обсуждаемых проблем сообщества в 2026 году стала нестабильность сети из-за появления мощных узлов с очень «сильными» ключами (high addressed root).
* **Проблема:** Когда кто-то генерирует ключ, претендующий на роль корня всей сети, но имеет при этом плохую связность или нестабильный канал, это «раскачивает» всю глобальную топологию.
* **Решение в v0.6:** Разработчики подтвердили, что в следующей версии (v0.6) дизайн **spanning tree** будет радикально изменен, чтобы лишить смысла попытки захватить роль корня и сделать сеть более устойчивой к таким колебаниям.
### Текущее состояние (Status Quo)
1. **Overlay-сеть:** Yggdrasil по-прежнему работает преимущественно как криптографическая сеть поверх интернета (IPv4/IPv6), обеспечивая сквозное шифрование.
2. **Стабильность:** Проект официально в статусе **Alpha**, но фактически признан сообществом достаточно стабильным для повседневного использования (SSH, локальные сервисы, мессенджеры).
3. **Платформы:** Поддерживаются практически все ОС (Linux, Windows, macOS, Android, iOS), а также прошивки OpenWrt и Ubiquiti.
**Короткий итог:** Если вы используете его для работы, стоит обновиться до актуальной ветки 0.5.12, чтобы получить более быстрый хендшейк и исправления маршрутов. Если же ждете глобальных перемен в архитектуре — следите за анонсами версии **0.6**.#Yggdrasil #YggdrasilNetwork #MeshNetwork #P2P #OverlayNetwork #IPv6 #Routing #SpanningTree #Networking #NetSec #Privacy #Encryption #OpenSource #SelfHosted #Decentralization #Infosec #SysAdmin #DevOps #Linux #OpenWrt #RaspberryPi #OrangePi #Mesh #PeerToPeer #NetworkEngineering #AlphaSoftware #TechUpdate #DistributedSystems
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"Full tunnel or nothing" is a security theater that kills network performance. If your CISO still pushes 0.0.0.0/0 through a 1Gbps pipe for remote workers streaming Netflix, you're not securing anything—you're just bottlenecking your own business. Split tunnel for corporate traffic. Let home traffic stay local. Stop pretending your firewall inspects TLS 1.3. #NetworkEngineering #SecurityTheater
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"Full tunnel or nothing" is a security theater that kills network performance. If your CISO still pushes 0.0.0.0/0 through a 1Gbps pipe for remote workers streaming Netflix, you're not securing anything—you're just bottlenecking your own business. Split tunnel for corporate traffic. Let home traffic stay local. Stop pretending your firewall inspects TLS 1.3. #NetworkEngineering #SecurityTheater
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There’s never been a better time to learn computer networking. Growing cloud and IT demand make networking skills more valuable than ever. Build real-world skills with MikroTik Users at www.mikrotikusers.com.
#ComputerNetworking #ITSkills #CloudComputing #MikroTik #NetworkEngineering #ITCareers
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There’s never been a better time to learn computer networking. Growing cloud and IT demand make networking skills more valuable than ever. Build real-world skills with MikroTik Users at www.mikrotikusers.com.
#ComputerNetworking #ITSkills #CloudComputing #MikroTik #NetworkEngineering #ITCareers
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New post up on Pack IT Forwarding about why AIOps fatigue is real, what "deterministic root cause" actually means in plain English, and the questions you should be asking before you buy the next shiny thing.
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I do not think network diagramming gets enough credit.
It is not the flashiest part of IT, but it makes troubleshooting easier, projects cleaner, and security conversations a whole lot more honest.
Put together a post on how to diagram networks, why it matters, and some of the free and paid tools that are worth considering.
https://www.kylereddoch.me/blog/network-diagrams-are-boring-until-you-need-one/
#Networking #NetworkEngineering #Sysadmin #Cybersecurity #MSP
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I do not think network diagramming gets enough credit.
It is not the flashiest part of IT, but it makes troubleshooting easier, projects cleaner, and security conversations a whole lot more honest.
Put together a post on how to diagram networks, why it matters, and some of the free and paid tools that are worth considering.
https://www.kylereddoch.me/blog/network-diagrams-are-boring-until-you-need-one/
#Networking #NetworkEngineering #Sysadmin #Cybersecurity #MSP
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Managing PTSD
Went to the library and there's an AT&T truck between it and City Hall, fiber trunks on the ground.
Friends, I used to work on Pier 39 (best office) and Every Time an AT&T van would show up at the box across Embarcadero, the pier would lose Net and everyone showed up in My Office (Lawyers office, Architects, Incubator downstairs, and the Kyak Rental).
Finally I threatened to chain the AT&T guy to something heavy and drop him off the pier. No more problem.
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Managing PTSD
Went to the library and there's an AT&T truck between it and City Hall, fiber trunks on the ground.
Friends, I used to work on Pier 39 (best office) and Every Time an AT&T van would show up at the box across Embarcadero, the pier would lose Net and everyone showed up in My Office (Lawyers office, Architects, Incubator downstairs, and the Kyak Rental).
Finally I threatened to chain the AT&T guy to something heavy and drop him off the pier. No more problem.
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Looking for a sponsoring LIR for my ASN.
I run a small non‑commercial network with a WireGuard uplink via Route64 and plan a second upstream (HE POP) for redundancy and BGP/IPv6 learning.
I can maintain IRR/RPKI. Any LIR willing to sponsor an ASN is welcome.#BGP #ASN #IPv6 #Multihoming #HomeLab #NetOps #NetworkEngineering #RIPE #LIR #NOG #PLNOG #DENOG #NLNOG #UKNOF #Routing #Sysadmin #Route64 #HurricaneElectric
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Looking for a sponsoring LIR for my ASN.
I run a small non‑commercial network with a WireGuard uplink via Route64 and plan a second upstream (HE POP) for redundancy and BGP/IPv6 learning.
I can maintain IRR/RPKI. Any LIR willing to sponsor an ASN is welcome.#BGP #ASN #IPv6 #Multihoming #HomeLab #NetOps #NetworkEngineering #RIPE #LIR #NOG #PLNOG #DENOG #NLNOG #UKNOF #Routing #Sysadmin #Route64 #HurricaneElectric
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Ứng dụng xInfra cho iOS giúp kỹ sư mạng giám sát và quản lý thiết bị qua SNMP, SSH & Telnet trực tiếp từ iPhone/iPad. Hỗ trợ SNMP v1/v2c/v3, kiểm tra uptime, CPU, RAM, trạng thái interface, MIB walk, GET/SET, cùng trình terminal chuyên nghiệp với phím ảo hỗ trợ ESC, CTRL, ALT. Đồng bộ thiết bị qua iCloud, giao diện tùy chỉnh. Hữu ích cho quản trị mạng di động. #xInfra #Networking #iOS #MIB #SSH #Telnet #NetworkEngineering #Quản_trị_mạng #iOS #Kỹ_thuật_viễn_thông
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Have a look at Oli’s talk at the #39c3 about PTP1588.
#NetworkEngineering #ptp1588https://media.ccc.de/v/39c3-excuse-me-what-precise-time-is-it
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Is your enterprise VPN stuck in the SSL era? 🦖
We unpacked the mechanics behind common issues like TCP meltdown, DTLS fallback, and mobility struggles in our new guide.
See why the transport protocol matters and what a modern, WireGuard-based alternative looks like in practice:
https://defguard.net/blog/ssl-vpn-performance-protocol-problem/
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Action Shots Requested!
https://zpr.io/8wwcJUcKpBTm
We’re launching a new series showcasing real homelabs and network setups from the Mikrotik community. Share your hardware, wiring, racks, and creative builds for a chance to be featured on the blog. Show us how you’re using Mikrotik gear in action! #MikroTik #HomeLab #NetworkEngineering -
Action Shots Requested!
https://zpr.io/8wwcJUcKpBTm
We’re launching a new series showcasing real homelabs and network setups from the Mikrotik community. Share your hardware, wiring, racks, and creative builds for a chance to be featured on the blog. Show us how you’re using Mikrotik gear in action! #MikroTik #HomeLab #NetworkEngineering -
Call for Papers: SharkFest’26 US
SharkFest is heading to Music City!
We’re inviting packet analysts, educators, network engineers & Wireshark enthusiasts to submit session proposals for SharkFest’26 US, happening in Nashville, Tennessee.Share your expertise in topics like:
• Packet capture and analysis techniques
• Wireshark dissector development
• Network performance and troubleshooting
• Security analysis and anomaly detection
• Automation and AI in network analysisWhether you’ve built tools, solved tough network mysteries, or want to teach others how to find “the truth in the packets,” we want to hear from you.
Submit your talk: https://conference.wireshark.org/sf26us/cfp
#SharkFest #Wireshark #PacketAnalysis #NetworkEngineering #NashvilleTech
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Call for Papers: SharkFest’26 US
SharkFest is heading to Music City!
We’re inviting packet analysts, educators, network engineers & Wireshark enthusiasts to submit session proposals for SharkFest’26 US, happening in Nashville, Tennessee.Share your expertise in topics like:
• Packet capture and analysis techniques
• Wireshark dissector development
• Network performance and troubleshooting
• Security analysis and anomaly detection
• Automation and AI in network analysisWhether you’ve built tools, solved tough network mysteries, or want to teach others how to find “the truth in the packets,” we want to hear from you.
Submit your talk: https://conference.wireshark.org/sf26us/cfp
#SharkFest #Wireshark #PacketAnalysis #NetworkEngineering #NashvilleTech
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[Corrected] IPv4 addresses are scarce nowadays. When we apply for a static IP address from the ISP, they will certainly persuade us to choose IPv6-only services. If you want to get a server or an IP address of IPv6-only, will you try to do it and adapt to this evolving world? Or do you want to still make your infrastructure compatible with IPv4 by acquiring that as well?
#ipv4 #ipv6 #networking #selfhosting #tech #internet #decentralisation #humantech #accessibility #futureproofing #costsaving #sysadmin #vps #dualstack #networkengineering #webdev #techdebate #internetaccess #cloud #opensource
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[Corrected] IPv4 addresses are scarce nowadays. When we apply for a static IP address from the ISP, they will certainly persuade us to choose IPv6-only services. If you want to get a server or an IP address of IPv6-only, will you try to do it and adapt to this evolving world? Or do you want to still make your infrastructure compatible with IPv4 by acquiring that as well?
#ipv4 #ipv6 #networking #selfhosting #tech #internet #decentralisation #humantech #accessibility #futureproofing #costsaving #sysadmin #vps #dualstack #networkengineering #webdev #techdebate #internetaccess #cloud #opensource
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Only 1 week until SharkFest’25 EUROPE!
We’re just days away from bringing together the world’s top packet analysts, network engineers, developers, and educators in Warsaw, Poland for a week of hands-on learning, collaboration & community.
Get ready for:
- Deep-dive sessions on Wireshark, Stratoshark, TCP, SMB & more
- Insightful talks from industry experts
- Networking with the brightest minds in network analysisJoin us November 3–7 in Warsaw, Poland for SharkFest’25 EUROPE, the ultimate conference for anyone passionate about packets!
Register now: https://sharkfest.wireshark.org/sfeu
#sf25eu #Wireshark #PacketAnalysis #Networking #Cybersecurity #NetworkEngineering #Stratoshark
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Only 1 week until SharkFest’25 EUROPE!
We’re just days away from bringing together the world’s top packet analysts, network engineers, developers, and educators in Warsaw, Poland for a week of hands-on learning, collaboration & community.
Get ready for:
- Deep-dive sessions on Wireshark, Stratoshark, TCP, SMB & more
- Insightful talks from industry experts
- Networking with the brightest minds in network analysisJoin us November 3–7 in Warsaw, Poland for SharkFest’25 EUROPE, the ultimate conference for anyone passionate about packets!
Register now: https://sharkfest.wireshark.org/sfeu
#sf25eu #Wireshark #PacketAnalysis #Networking #Cybersecurity #NetworkEngineering #Stratoshark
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🔥 MASSIVE shout-out to the @decix Istanbul team! 🔥
They just nailed one of the hardest tasks in networking: a "big bang" PoP migration.
➡️ What: Moved our main PoP (40+ customers) to a new datacenter. ➡️ How Fast: 10 hours, start to finish. ➡️ How Efficient: 8 racks ➡️ 2 racks. ➡️ The Result: "Super smooth" cutover for customers.
Look at that new cabling! 👇 This is expert-level work from a passionate team. So impressed!
#OneTeam #CustomerCentric #DECIX #NetworkEngineering #Istanbul
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🔥 MASSIVE shout-out to the @decix Istanbul team! 🔥
They just nailed one of the hardest tasks in networking: a "big bang" PoP migration.
➡️ What: Moved our main PoP (40+ customers) to a new datacenter. ➡️ How Fast: 10 hours, start to finish. ➡️ How Efficient: 8 racks ➡️ 2 racks. ➡️ The Result: "Super smooth" cutover for customers.
Look at that new cabling! 👇 This is expert-level work from a passionate team. So impressed!
#OneTeam #CustomerCentric #DECIX #NetworkEngineering #Istanbul
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I was too furious to properly hashtag the foregoing: #AWS #outage #NetworkEngineering #SystemsAnalysis #SystemsArchitecture #SinglePointOfFailure #greed #GreedyBastards #MoreMoneyThanSense -
Level up your packet analysis skills before SharkFest kicks off!
This hands-on, 2 day class will teach you how to capture, analyze, and troubleshoot real network traffic using Wireshark. It will also prepare you for the WCA exam.
What you’ll learn:
- How to capture and analyze live network traffic
- Key protocol deep dives (#TCP, UDP, HTTP, TLS, DNS, and more)
- Advanced display filtering and troubleshooting workflows
- Command-line analysis with #TSharkNovember 3–4 | Warsaw, Poland
Register now: https://sharkfest.wireshark.org/sfeu#Wireshark #sf25eu #Networking #NetworkEngineering #DNS #UDP #WCA #NetworkAnalysis #Cybersecurity
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Level up your packet analysis skills before SharkFest kicks off!
This hands-on, 2 day class will teach you how to capture, analyze, and troubleshoot real network traffic using Wireshark. It will also prepare you for the WCA exam.
What you’ll learn:
- How to capture and analyze live network traffic
- Key protocol deep dives (#TCP, UDP, HTTP, TLS, DNS, and more)
- Advanced display filtering and troubleshooting workflows
- Command-line analysis with #TSharkNovember 3–4 | Warsaw, Poland
Register now: https://sharkfest.wireshark.org/sfeu#Wireshark #sf25eu #Networking #NetworkEngineering #DNS #UDP #WCA #NetworkAnalysis #Cybersecurity
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Does anyone know where I can get my hands on some old token ring gear?
What hashtag do you even use for that?
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Does anyone know where I can get my hands on some old token ring gear?
What hashtag do you even use for that?
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Why SharkFest?
- Hands-on workshops with real-world packet analysis
- Learn directly from Wireshark developers & power users
- Network with the brightest minds in IT, SecOps & NetEng
- Experience Warsaw’s vibrant culture 🇵🇱See you November 3–7 for SharkFest’25 EUROPE!
Learn more & register: https://sharkfest.wireshark.org/sfeu
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Why SharkFest?
- Hands-on workshops with real-world packet analysis
- Learn directly from Wireshark developers & power users
- Network with the brightest minds in IT, SecOps & NetEng
- Experience Warsaw’s vibrant culture 🇵🇱See you November 3–7 for SharkFest’25 EUROPE!
Learn more & register: https://sharkfest.wireshark.org/sfeu
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Network engineering is the foundation in today's tech industry, with many trends do not skipping the fundamentals to chase cloud, cybersecurity .... https://hackernoon.com/networking-why-you-should-understand-the-ipv4-header-beyond-chasing-tools #networkengineering
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Network engineering is the foundation in today's tech industry, with many trends do not skipping the fundamentals to chase cloud, cybersecurity .... https://hackernoon.com/networking-why-you-should-understand-the-ipv4-header-beyond-chasing-tools #networkengineering
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This morning I successfully converted my internal DNS to corp.avvira.us. I’m glad that I read about the whole problematic fake internal domain thing yesterday because that could rear its ugly head. I also learned about something very important. I made yet another mistake in my planning.
I’ve never designed anything that would ever grow beyond a /22 or 1022 hosts on a network. Now I find myself in a situation where I have to plan for a case where this could happen: my own business. So I read up more carefully on variable length subnet masking. Apparently, you have to estimate what your largest subnet size will be and then carve up from there. So again I planned poorly with thinking I’d just carve up 172.16.0.0/12 into a whole bunch of /24s. That would leave a large and inefficient routing table.
So it’s better to think this one through carefully. I’m seeing this now. It might make sense instead to carve this up into several /18s, and from there, further divide into smaller units as needed here and there. I guess I need someone with more advanced #NetworkEngineering experience than I have. Feel free to weigh in on this.
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This morning I successfully converted my internal DNS to corp.avvira.us. I’m glad that I read about the whole problematic fake internal domain thing yesterday because that could rear its ugly head. I also learned about something very important. I made yet another mistake in my planning.
I’ve never designed anything that would ever grow beyond a /22 or 1022 hosts on a network. Now I find myself in a situation where I have to plan for a case where this could happen: my own business. So I read up more carefully on variable length subnet masking. Apparently, you have to estimate what your largest subnet size will be and then carve up from there. So again I planned poorly with thinking I’d just carve up 172.16.0.0/12 into a whole bunch of /24s. That would leave a large and inefficient routing table.
So it’s better to think this one through carefully. I’m seeing this now. It might make sense instead to carve this up into several /18s, and from there, further divide into smaller units as needed here and there. I guess I need someone with more advanced #NetworkEngineering experience than I have. Feel free to weigh in on this.
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Ever wanted to dive deeper into packet analysis using Python? Check out this video: “Analyzing Capture Files in Python with PyShark” by Dor Green from a past SharkFest, an excellent example of the hands-on, technical training you'll experience at SharkFest'25 Europe.
https://www.youtube.com/watch?v=qxBKHsMhWKU
Want real world, expert led sessions like this + access to the latest in Wireshark and Stratoshark training? Then join us in Warsaw this November for SharkFest'25 Europe, where you'll learn directly from the best in the field.
Sign up today: http://sharkfest.wireshark.org/sfeu
#sf25eu #Wireshark #PyShark #Python #PacketAnalysis #NetworkEngineering #Cybersecurity
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Ever wanted to dive deeper into packet analysis using Python? Check out this video: “Analyzing Capture Files in Python with PyShark” by Dor Green from a past SharkFest, an excellent example of the hands-on, technical training you'll experience at SharkFest'25 Europe.
https://www.youtube.com/watch?v=qxBKHsMhWKU
Want real world, expert led sessions like this + access to the latest in Wireshark and Stratoshark training? Then join us in Warsaw this November for SharkFest'25 Europe, where you'll learn directly from the best in the field.
Sign up today: http://sharkfest.wireshark.org/sfeu
#sf25eu #Wireshark #PyShark #Python #PacketAnalysis #NetworkEngineering #Cybersecurity
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I have a very weird issue with my #tailscale + #mumble server setup:
I have a murmur (mumble) server that binds to the tailscale interface on my server.
I have shared that endpoint with a friend and we're both connecting via tailscale to that mumble server to talk.
Every few minutes (3, 5, something like that), one of us gets reconnected. Mumble (client) says "Server failed to respond to TCP ping". On the server it says (murmur log): "Connection closed: The remote host closed the connection".
The tailscale log on the server says something like "adding connection to derp-* for ..." at that very moment of reconnecting.
How to debug this issue? I don't even know where to start. It looks like (to me, as a networking noob) that tailscale reconfigures connections and breaks the mumble connection.
#followerpower #linuxadmin #NetworkEngineering #networking #sysadmin
CC @tailscale
Please boost :boost_ok:
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The Wireshark Certified Analyst certification has been available for just over a month and professionals have already started leveraging it to validate and elevate their packet analysis skills.
Designed by the Wireshark Foundation with input from core developers and engineering educators, this rigorous certification tests both protocol knowledge (Ethernet, IP, TCP, UDP, DNS, DHCP) and advanced troubleshooting using real-world Wireshark tools.
If you’ve been mastering packet captures and troubleshooting in the field, earning the WCA is a powerful way to showcase your expertise and stand out professionally.
Find all the details, objectives, and registration info here: https://wireshark.org/certifications
#Wireshark #WCA #Certification #PacketAnalysis #NetworkEngineering
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Ready to level up your packet analysis game? At SharkFest’25 EUROPE in Warsaw, you'll have the unique opportunity to learn Wireshark and Stratoshark from experts who build and use them every day.
Join hands-on workshops, deep-dive technical sessions, and interactive labs led by top professionals designed to sharpen your traffic capture, analysis, and troubleshooting skills. Whether you're a seasoned network engineer or emerging pro, this is where theory meets practical expertise.
Register now: https://sharkfest.wireshark.org/sfeu
#sf25eu #Wireshark #Stratoshark #PacketAnalysis #NetworkEngineering #Cybersecurity