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#networking

21 posts19 participants0 posts today
Tim (Wadhwa-)Brown :donor:<p>If you suffer a breach, I am absolutely saying you should review and secure your netinf, not just stick a ZT shaped plaster on top of it.</p><p>Especially if you have default creds, ejected MSSP and unauth'd routing protocols in the mix.</p><p><a href="https://infosec.exchange/tags/blueteam" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>blueteam</span></a>, <a href="https://infosec.exchange/tags/dfir" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dfir</span></a>, <a href="https://infosec.exchange/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a>, <a href="https://infosec.exchange/tags/soc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>soc</span></a></p>
Tim (Wadhwa-)Brown :donor:<p>Today's observation. If you have a network team with SolarWinds Orion and you're not taking a look at the netflow etc then (assuming you don't have NDR) you should be. There are some nice easy detection use cases to keep an eye on.</p><p><a href="https://infosec.exchange/tags/blueteam" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>blueteam</span></a>, <a href="https://infosec.exchange/tags/dfir" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dfir</span></a>, <a href="https://infosec.exchange/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a>, <a href="https://infosec.exchange/tags/soc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>soc</span></a></p>
Lobsters<p>The Mercury Protocol <a href="https://lobste.rs/s/tusjpx" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">lobste.rs/s/tusjpx</span><span class="invisible"></span></a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a> <a href="https://mastodon.social/tags/satire" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satire</span></a><br><a href="https://raw.githubusercontent.com/floren/mercury/master/SPEC" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">raw.githubusercontent.com/flor</span><span class="invisible">en/mercury/master/SPEC</span></a></p>
Lobsters<p>Project SERVFAIL: one year in <a href="https://lobste.rs/s/cuaicj" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">lobste.rs/s/cuaicj</span><span class="invisible"></span></a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a><br><a href="https://sdomi.pl/weblog/25-servfail-first-year/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">sdomi.pl/weblog/25-servfail-fi</span><span class="invisible">rst-year/</span></a></p>
Stefano Marinelli<p>On 14h July (though it was already the 15th here), some of my monitoring jails started throwing errors. Not all of them, though. On the same host, an Uptime Kuma instance was showing a ton of servers down, while LibreNMS wasn't displaying any issues. After investigating, I discovered why. The jail running LibreNMS was using local_unbound (integrated into FreeBSD), while the other, perhaps for speed, was using Cloudflare's DNS.</p><p>DNS is like email, the Fediverse, and other similar services: they work better and make us freer when they're decentralized.</p><p>Let's go back to decentralizing the internet. Its very existence, as we've known it, depends on it.</p><p><a href="https://mastodon.bsd.cafe/tags/BeFree" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BeFree</span></a> <a href="https://mastodon.bsd.cafe/tags/Decentralization" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Decentralization</span></a> <a href="https://mastodon.bsd.cafe/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SysAdmin</span></a> <a href="https://mastodon.bsd.cafe/tags/IT" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>IT</span></a> <a href="https://mastodon.bsd.cafe/tags/Technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Technology</span></a> <a href="https://mastodon.bsd.cafe/tags/Internet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Internet</span></a> <a href="https://mastodon.bsd.cafe/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a></p>
9to5Linux<p><a href="https://floss.social/tags/Wireshark" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Wireshark</span></a> 4.4.8 Open-Source Network Protocol Analyzer Updates Protocol Support, Fixes Bugs <a href="https://9to5linux.com/wireshark-4-4-8-open-source-network-protocol-analyzer-updates-protocol-support" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">9to5linux.com/wireshark-4-4-8-</span><span class="invisible">open-source-network-protocol-analyzer-updates-protocol-support</span></a></p><p><a href="https://floss.social/tags/OpenSource" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenSource</span></a> <a href="https://floss.social/tags/FreeSoftware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeSoftware</span></a> <a href="https://floss.social/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Linux</span></a> <a href="https://floss.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a></p>
Brett<p>SASE platforms that rely on MiTM ALL of your network traffic degrade your network security because all of your engineers have to either write code to get around it or disable ALL certificate validation in their code that accesses remote resources. </p><p>Also from what I know, when they "whitelist" a remote resource to allow internal clients to access something its just checking a box that says don't validate SSL for this particular remote resource.</p><p>I'm open to being wrong here, but I feel like products that break native certificate validation are bad.</p><p><a href="https://vmst.io/tags/SASE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SASE</span></a> <a href="https://vmst.io/tags/network" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>network</span></a> <a href="https://vmst.io/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a> <a href="https://vmst.io/tags/networkengineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networkengineering</span></a> <a href="https://vmst.io/tags/security" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>security</span></a></p>
Stefano Marinelli<p>Cloudflare 1.1.1.1 Incident on July 14, 2025</p><p><a href="https://blog.cloudflare.com/cloudflare-1-1-1-1-incident-on-july-14-2025/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.cloudflare.com/cloudflare</span><span class="invisible">-1-1-1-1-incident-on-july-14-2025/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/Cloudflare" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Cloudflare</span></a> <a href="https://mastodon.bsd.cafe/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://mastodon.bsd.cafe/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SysAdmin</span></a></p>
Lobsters<p>Cloudflare 1.1.1.1 incident postmortem for July 14, 2025 <a href="https://lobste.rs/s/4dn4da" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">lobste.rs/s/4dn4da</span><span class="invisible"></span></a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a><br><a href="https://blog.cloudflare.com/cloudflare-1-1-1-1-incident-on-july-14-2025/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.cloudflare.com/cloudflare</span><span class="invisible">-1-1-1-1-incident-on-july-14-2025/</span></a></p>
TechnoTenshi :verified_trans: :Fire_Lesbian:<p>Cloudflare's 1.1.1.1 DNS Resolver was globally unavailable for over an hour on July 14 due to a legacy config error triggered during a DLS service update. DoH remained mostly unaffected. Incident caused major disruption. </p><p><a href="https://blog.cloudflare.com/cloudflare-1-1-1-1-incident-on-july-14-2025/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.cloudflare.com/cloudflare</span><span class="invisible">-1-1-1-1-incident-on-july-14-2025/</span></a></p><p><a href="https://infosec.exchange/tags/dns" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dns</span></a> <a href="https://infosec.exchange/tags/cloudflare" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cloudflare</span></a> <a href="https://infosec.exchange/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a> <a href="https://infosec.exchange/tags/outage" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>outage</span></a></p>
DENOG<p>DENOG Meetup Stuttgart bei Nokia – Jetzt die Vorträge auf YouTube ansehen! 🎬</p><p>Taucht ein in folgende Themen:<br>🔹 "Applying statistical operations on telemetry data for improved analytics and anomaly detection" präsentiert von Mathis Bramkamp<br>🔹 "Security auf Layer 2 - MACses unter Linux" erklärt von Lara Hallaczek</p><p>📺 Zur Playlist: <a href="https://www.youtube.com/playlist?list=PLgJN7Up-XnKRBrXNHeC0GdU3aViLb5wVb" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/playlist?list=PLgJ</span><span class="invisible">N7Up-XnKRBrXNHeC0GdU3aViLb5wVb</span></a></p><p>Wie fandet ihr das Meetup? 💬 Teilt eure Eindrücke in den Kommentaren!</p><p><a href="https://mastodon.online/tags/DENOG" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DENOG</span></a> <a href="https://mastodon.online/tags/Meetup" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Meetup</span></a> <a href="https://mastodon.online/tags/Nokia" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Nokia</span></a> <a href="https://mastodon.online/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://mastodon.online/tags/Stuttgart" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Stuttgart</span></a></p>
NaWik<p>Wie kommunizieren wir Wissenschaft in Zeiten von Desinformation?<br>Bei der <a href="https://mastodon.social/tags/EuroSTEMPeers25" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroSTEMPeers25</span></a> diskutierte unser Kollege Dr. Tobias Maier <span class="h-card" translate="no"><a href="https://mastodon.world/@weitergen" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>weitergen</span></a></span> mit Expert:innen über Chancen &amp; Herausforderungen moderner <a href="https://mastodon.social/tags/Wissenschaftskommunikation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Wissenschaftskommunikation</span></a>. Danke für den wertvollen Austausch! 🙌</p><p><a href="https://mastodon.social/tags/NaWik" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NaWik</span></a> <a href="https://mastodon.social/tags/Wissenschaftskommunikation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Wissenschaftskommunikation</span></a> <a href="https://mastodon.social/tags/ScienceCommunication" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ScienceCommunication</span></a> <a href="https://mastodon.social/tags/EuroSTEMPeers25" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroSTEMPeers25</span></a> <a href="https://mastodon.social/tags/WissKomm" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WissKomm</span></a> <a href="https://mastodon.social/tags/PanelDiscussion" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PanelDiscussion</span></a> <a href="https://mastodon.social/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://mastodon.social/tags/SciComm" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SciComm</span></a></p>
Liblast<p>Inching forward. For now just trying to get this to work in the simplest way possible. Basic FPS game networking - character movement first.</p><p>- unfa</p><p><a href="https://mastodon.gamedev.place/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://mastodon.gamedev.place/tags/Godot" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Godot</span></a> <a href="https://mastodon.gamedev.place/tags/IndieDev" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>IndieDev</span></a> <a href="https://mastodon.gamedev.place/tags/Liblast" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Liblast</span></a></p>
Leanpub<p>Beyond Boundaries - Networking Programming with C# 12 and .NET 8 <a href="https://leanpub.com/csharp-networking" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">leanpub.com/csharp-networking</span><span class="invisible"></span></a> by Chris Woody Woodruff cwoodruff@mastodon.social is the featured book on the Leanpub homepage! <a href="https://leanpub.com" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">leanpub.com</span><span class="invisible"></span></a> <a href="https://mastodon.social/tags/CSharp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CSharp</span></a> <a href="https://mastodon.social/tags/Dotnet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Dotnet</span></a> <a href="https://mastodon.social/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://mastodon.social/tags/apis" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>apis</span></a> <a href="https://mastodon.social/tags/books" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>books</span></a> <a href="https://mastodon.social/tags/ebooks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ebooks</span></a></p><p>Find it on Leanpub!</p>
Lobsters<p>Introducing TCP-in-UDP solution (eBPF) <a href="https://lobste.rs/s/zeuzlc" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">lobste.rs/s/zeuzlc</span><span class="invisible"></span></a> <a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a><br><a href="https://blog.mptcp.dev/2025/07/14/TCP-in-UDP.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.mptcp.dev/2025/07/14/TCP-</span><span class="invisible">in-UDP.html</span></a></p>
ResearchBuzz: Firehose<p>The Conversation: How LinkedIn’s algorithm can help us find new uses for existing medicines. “At the Computational Biology and Translational Genomics lab at the University of Navarra, we have followed this idea to develop GeNNius, a model that aims to build a network between drugs and proteins. Its implementation has already improved existing models, especially in terms of run time: in just […]</p><p><a href="https://rbfirehose.com/2025/07/15/the-conversation-how-linkedins-algorithm-can-help-us-find-new-uses-for-existing-medicines/" class="" rel="nofollow noopener" target="_blank">https://rbfirehose.com/2025/07/15/the-conversation-how-linkedins-algorithm-can-help-us-find-new-uses-for-existing-medicines/</a></p>
maple "mavica" syrup [6502]<p>i don't get it</p><p>nmap says my server does TLS_RSA_WITH_AES_128_CBC_SHA (among others)</p><p>classilla (OS 9) says it has TLS_RSA_WITH_AES_128_CBC_SHA (among others)</p><p>i can't open my site because there is no cipher overlap.</p><p><a href="https://computerfairi.es/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a> <a href="https://computerfairi.es/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a> ?</p>
Wireshark<p>Happy 27th Anniversary to Wireshark!</p><p>From its humble beginnings as <span class="h-card" translate="no"><a href="https://infosec.exchange/@geraldcombs" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>geraldcombs</span></a></span>'s "little weekend project that got slightly out of hand" to becoming the world’s most trusted network protocol analyzer, Wireshark has empowered millions of engineers, educators, students, and security pros to understand their networks like never before.</p><p>Thank you to our users, contributors, and supporters who’ve made this journey possible. Here's to the past, present, and future of packet analysis!</p><p><a href="https://wireshark.org" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">wireshark.org</span><span class="invisible"></span></a><br><a href="https://wiresharkfoundation.org" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">wiresharkfoundation.org</span><span class="invisible"></span></a></p><p><a href="https://ioc.exchange/tags/Wireshark" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Wireshark</span></a> <a href="https://ioc.exchange/tags/OpenSource" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenSource</span></a> <a href="https://ioc.exchange/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://ioc.exchange/tags/PacketAnalysis" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PacketAnalysis</span></a></p>
Ariel<p><span class="h-card" translate="no"><a href="https://masto.hackers.town/@socketwench" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>socketwench</span></a></span> ah right - so where I left mDNS I was working out how to write nftables rules that would force any outbound traffic back to localhost to the systemd-resolved stub, which I could THEN enforce prioritizing mDNS responses, but also mDNS isn't kindof a closed and done thing like DNS is, it can just kinda, hang open for a but waiting for replies to the broadcast, and slowing everything down.</p><p>...yea I didn't get as far as investigating mDNS caching before this smelled awful</p><p><a href="https://eigenmagic.net/tags/DNS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DNS</span></a> <a href="https://eigenmagic.net/tags/mDNS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mDNS</span></a> <a href="https://eigenmagic.net/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a></p>
Ariel<p>It's such a great *idea* though</p><p><a href="https://eigenmagic.net/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Networking</span></a> <a href="https://eigenmagic.net/tags/DNS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DNS</span></a> <a href="https://eigenmagic.net/tags/mDNS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mDNS</span></a></p>