https://media.freifunk.net/ Freifunk steht für freie Kommunikation in digitalen Datennetze.nWir verstehen frei als öffentlich zugänglich, nicht kommerziell, im Besitz der Gemeinschaft und unzensiert. mostly cc-by-nc Sat, 11 Apr 2026 19:15:01 -0000 /assets/frontend/feed-banner-0b0a99e2e427717fff43f9c850a307ff160cf818e5ba8abae91b9b6573741485.png https://media.freifunk.net/ https://media.freifunk.net/v/kiezbox-returns-one-mesh-is-not-enough Kiezbox is a pilot project to build an emergency mesh network. Aimed to provide average citizens a means of communication in case of blackouts. Developed as open source project and publicly funded by the state of Berlin. After a quick recap, I will focus on some interesting technical aspects and achievements. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/ASQ3RD/ Sun, 15 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/3980a268-1be3-40a2-86cf-851b5913b145/3980a268-1be3-40a2-86cf-851b5913b145-h264.mp4?1750579254 3980a268-1be3-40a2-86cf-851b5913b145 2025-06-15T00:00:00+02:00 Jan No kiezbox, freifunk, meshtastic Kiezbox is a pilot project to build an emergency mesh network. Aimed to provide average citizens a means of communication in case of blackouts. Developed as open source project and publicly funded by the state of Berlin. After a quick recap, I will focus on some interesting technical aspects and achievements. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/ASQ3RD/ 00:26:23 https://media.freifunk.net/v/kconfig-utils-how-to-programmatically-deal-with-your-config Did you remained sadly surprised by the lack of a way to programmatically configure build options of Linux kernel? I have. I needed to configure Linux kernel and OpenWrt (which uses Kconfig too) build options from a script but found no proper way to do it, so I had to come up with this. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/QE9JWB/ Sun, 15 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/19f14995-d53f-4b0d-b0e7-ea2f0251a149/19f14995-d53f-4b0d-b0e7-ea2f0251a149-h264.mp4?1750981891 19f14995-d53f-4b0d-b0e7-ea2f0251a149 2025-06-15T00:00:00+02:00 G10h4ck No openwrt, config Did you remained sadly surprised by the lack of a way to programmatically configure build options of Linux kernel? I have. I needed to configure Linux kernel and OpenWrt (which uses Kconfig too) build options from a script but found no proper way to do it, so I had to come up with this. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/QE9JWB/ 00:21:20 https://media.freifunk.net/v/community-networks-development-in-indonesia Community networks movement in Indonesia gaining its momentum during COVID-19 pandemic outbreak in 2020. Currently the movement has been growing, while enhancing community-centered connectivity initiatives with meaningful access in rural & remote areas. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/SLB7DA/ Sun, 15 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/1690b1ce-603f-4010-bb24-1d9a0a2e94cf/1690b1ce-603f-4010-bb24-1d9a0a2e94cf-h264.mp4?1750987075 1690b1ce-603f-4010-bb24-1d9a0a2e94cf 2025-06-15T00:00:00+02:00 Gustaff, H., Iskandar No Community networks movement in Indonesia gaining its momentum during COVID-19 pandemic outbreak in 2020. Currently the movement has been growing, while enhancing community-centered connectivity initiatives with meaningful access in rural & remote areas. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/SLB7DA/ 00:32:26 https://media.freifunk.net/v/flow-offloading-via-ebpf Try to increase the forwarding performance by intercepting a data packet very early inside or even before the Linux network stack. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/XPGMNW/ Sat, 14 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/c29c2581-2840-48a2-93b6-38da8a133599/c29c2581-2840-48a2-93b6-38da8a133599-h264.mp4?1750873686 c29c2581-2840-48a2-93b6-38da8a133599 2025-06-14T00:00:00+02:00 Til Kaiser No openwrt, ebpf, hsn Try to increase the forwarding performance by intercepting a data packet very early inside or even before the Linux network stack. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/XPGMNW/ 00:39:02 https://media.freifunk.net/v/mesh-graph-viewer A standalone tool to visualize mesh networks from JSON files. We will show a demo how to also use the Mesh Graph Viewer as a visual interface for a simulated mesh network running batman-adv. See https://github.com/mwarning/MeshGraphViewer/ about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/DKQVDM/ Sat, 14 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/08e3c8d6-5b57-4b35-a384-12718994eddf/08e3c8d6-5b57-4b35-a384-12718994eddf-h264.mp4?1750895712 08e3c8d6-5b57-4b35-a384-12718994eddf 2025-06-14T00:00:00+02:00 mwarning No mesh A standalone tool to visualize mesh networks from JSON files. We will show a demo how to also use the Mesh Graph Viewer as a visual interface for a simulated mesh network running batman-adv. See https://github.com/mwarning/MeshGraphViewer/ about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/DKQVDM/ 00:22:29 https://media.freifunk.net/v/openwrt-as-a-smart-bootloader-chainloader Have you been wondering how to keep using your old routers that have not enough storage to fit a modern OpenWrt insie? Me too let's discuss about it toghether. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/RCZULN/ Sat, 14 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/e4ca9a2f-a84b-4010-9a63-a46ac19a5ebc/e4ca9a2f-a84b-4010-9a63-a46ac19a5ebc-h264.mp4?1750897810 e4ca9a2f-a84b-4010-9a63-a46ac19a5ebc 2025-06-14T00:00:00+02:00 G10h4ck No openwrt, bootloader Have you been wondering how to keep using your old routers that have not enough storage to fit a modern OpenWrt insie? Me too let's discuss about it toghether. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/RCZULN/ 00:11:38 https://media.freifunk.net/v/openwrt-on-realtek-switches Smart switches are part of most wireless infrastructures - but many still run the vendor firmware, capabilities to install own software are limited. OpenWRT enables open firmware with modern Linux kernel, software updates, and your own software. Recent Realtek Switches come with great specs at a reasonable price point. I'll provide an overview of technical capabilities and limitations, current integration status and features of OpenWRT on Realtek, and discuss some applications for testbeds, community networks and wireless ISPs. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/YNYX93/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/56759c13-55dc-49b7-9a41-d2ad432c1dbb/56759c13-55dc-49b7-9a41-d2ad432c1dbb-h264.mp4?1750815722 56759c13-55dc-49b7-9a41-d2ad432c1dbb 2025-06-13T00:00:00+02:00 Simon Wunderlich No realtek, openwrt Smart switches are part of most wireless infrastructures - but many still run the vendor firmware, capabilities to install own software are limited. OpenWRT enables open firmware with modern Linux kernel, software updates, and your own software. Recent Realtek Switches come with great specs at a reasonable price point. I'll provide an overview of technical capabilities and limitations, current integration status and features of OpenWRT on Realtek, and discuss some applications for testbeds, community networks and wireless ISPs. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/YNYX93/ 00:51:11 https://media.freifunk.net/v/private-network-segmentation-for-smart-homes Isolated WLAN for Smart Home Devices enhances the privacy of its users. Privacy Protection Goals such as Integrity, Confidentiality or Unlikability can be addressed. The prototype as based on hostapd wpa_psk_file, OpenVSwitch a MPLS. Isolation is performed in 802.11 mesh. How to make this available to end-users? As of now, I see no good way to integrate the prototype into OpenWRT. This may be complex, because ut touches various configurations (WLAN, OVS, Mesh). Also, I'm not aware of any user-friendly IEEE 802.11 mesh configuration in OpenWRT or user-interface to wpa_psk_file. Is the a perspective for OpenWRT packages? about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/RCGABU/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/ff01f226-1c33-42be-972e-a3ca3b892c27/ff01f226-1c33-42be-972e-a3ca3b892c27-h264.mp4?1750724477 ff01f226-1c33-42be-972e-a3ca3b892c27 2025-06-13T00:00:00+02:00 yanosz No smarthome, iot Isolated WLAN for Smart Home Devices enhances the privacy of its users. Privacy Protection Goals such as Integrity, Confidentiality or Unlikability can be addressed. The prototype as based on hostapd wpa_psk_file, OpenVSwitch a MPLS. Isolation is performed in 802.11 mesh. How to make this available to end-users? As of now, I see no good way to integrate the prototype into OpenWRT. This may be complex, because ut touches various configurations (WLAN, OVS, Mesh). Also, I'm not aware of any user-friendly IEEE 802.11 mesh configuration in OpenWRT or user-interface to wpa_psk_file. Is the a perspective for OpenWRT packages? about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/RCGABU/ 00:36:09 https://media.freifunk.net/v/privat-im-netz-nextcloud-on-small-computers Talk introduces my little Nextcloud zoo and the https://privat-in.de web site. Those little SBC boxes have a good concept to store data securely and are ready for backups. I'll talk on the data storage concept used and how it's supposed for mutual (peer-to-peer) backups. On top of this, you can install Nextcloud using NextcloudPI. To make the setup easy for normal people, one can reach a personalized little box from the internet via HAProxy with SNI redirecting to a personal Wireguard tunnel. This setup is suitable if your provider gets you behind CGNAT or MAP-T or in cases you simply are un-able to configure port forwarding yourself. The plan is to make money for my local hackspace offering (payed) courses to people e.g. how to master those little beasts, how to link your smartphone to them, how to use a password manager, and how to secure / restore your backups. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/DRSQZB/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/d90695d2-c661-4484-a6ca-bc0d08cd9017/d90695d2-c661-4484-a6ca-bc0d08cd9017-h264.mp4?1750820393 d90695d2-c661-4484-a6ca-bc0d08cd9017 2025-06-13T00:00:00+02:00 Sven-Ola Tuecke No nextcloud, raspberry, pi Talk introduces my little Nextcloud zoo and the https://privat-in.de web site. Those little SBC boxes have a good concept to store data securely and are ready for backups. I'll talk on the data storage concept used and how it's supposed for mutual (peer-to-peer) backups. On top of this, you can install Nextcloud using NextcloudPI. To make the setup easy for normal people, one can reach a personalized little box from the internet via HAProxy with SNI redirecting to a personal Wireguard tunnel. This setup is suitable if your provider gets you behind CGNAT or MAP-T or in cases you simply are un-able to configure port forwarding yourself. The plan is to make money for my local hackspace offering (payed) courses to people e.g. how to master those little beasts, how to link your smartphone to them, how to use a password manager, and how to secure / restore your backups. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/DRSQZB/ 00:29:36 https://media.freifunk.net/v/real-quantum-key-distribution-qkd-systems-in-our-village-with-inject-to-openwrt-wireguard QKD in a nutshell for Battlemeshers, Labtour with entanglement based quantum key distribution systems, Rosenpass & OpenWrt Wireguard integration about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/U7R8YG/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/afded32d-b29c-475e-98a3-028cef3e8dd2/afded32d-b29c-475e-98a3-028cef3e8dd2-h264.mp4?1750647941 afded32d-b29c-475e-98a3-028cef3e8dd2 2025-06-13T00:00:00+02:00 Bluse No quantum, rosenpass, wireguard QKD in a nutshell for Battlemeshers, Labtour with entanglement based quantum key distribution systems, Rosenpass & OpenWrt Wireguard integration about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/U7R8YG/ 01:01:40 https://media.freifunk.net/v/old-and-new-mesh-routing-protocols In this talk I like to give an overview of existing mobile ad-hoc mesh routing protocols like BMX, Babel, B.A.T.M.A.N.-adv, Yggdrasil, Reticulum, Meshtastic and others. We will talk about the general idea behind them, how they work, the development status and history. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/ZEUJVA/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/7e413256-4f15-423f-907e-38706ba707b4/7e413256-4f15-423f-907e-38706ba707b4-h264.mp4?1750750518 7e413256-4f15-423f-907e-38706ba707b4 2025-06-13T00:00:00+02:00 mwarning No olsr, batman, bmx, babel, mesh, meshtastic In this talk I like to give an overview of existing mobile ad-hoc mesh routing protocols like BMX, Babel, B.A.T.M.A.N.-adv, Yggdrasil, Reticulum, Meshtastic and others. We will talk about the general idea behind them, how they work, the development status and history. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/ZEUJVA/ 00:31:08 https://media.freifunk.net/v/apup-and-beyond Let's see together what's inside APuP, how to benefit from, and future developments about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/TCZD77/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/79fb30d7-182f-4430-b67e-bc6d3e4db66d/79fb30d7-182f-4430-b67e-bc6d3e4db66d-h264.mp4?1750685645 79fb30d7-182f-4430-b67e-bc6d3e4db66d 2025-06-13T00:00:00+02:00 G10h4ck No openwrt, apup Let's see together what's inside APuP, how to benefit from, and future developments about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/TCZD77/ 00:31:50 https://media.freifunk.net/v/gsoc-review-and-outlook Let's take a look on projects from last year and this year, let's discuss if we want to continue with GSoC. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/833K9R/ Fri, 13 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/0109e954-e1f0-442f-bc33-0e93291f826d/0109e954-e1f0-442f-bc33-0e93291f826d-h264.mp4?1750757192 0109e954-e1f0-442f-bc33-0e93291f826d 2025-06-13T00:00:00+02:00 andibraeu No gsoc Let's take a look on projects from last year and this year, let's discuss if we want to continue with GSoC. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/833K9R/ 00:25:14 https://media.freifunk.net/v/shared-state-rewrite-in-rust-for-fun-and-profit A journey on how I rewritten shared-state in rust and how it pleasantly fits in OpenWrt routers. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/LVC8TZ/ Wed, 11 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/27386cf9-fdc7-4c7b-90ae-e14c27ffffe1/27386cf9-fdc7-4c7b-90ae-e14c27ffffe1-h264.mp4?1750547296 27386cf9-fdc7-4c7b-90ae-e14c27ffffe1 2025-06-11T00:00:00+02:00 G10h4ck No rust A journey on how I rewritten shared-state in rust and how it pleasantly fits in OpenWrt routers. about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/LVC8TZ/ 00:31:54 https://media.freifunk.net/v/mesh-networks-and-social-impact small tank about mesh networks and the process around them in Argentina about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/ME8DXM/ Wed, 11 Jun 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wbmv17/5799fb6e-e865-4fe5-a5ab-ba93af61f1df/5799fb6e-e865-4fe5-a5ab-ba93af61f1df-h264.mp4?1750584208 5799fb6e-e865-4fe5-a5ab-ba93af61f1df 2025-06-11T00:00:00+02:00 javier No mesh, networks [audio defect in the first minutes] small tank about mesh networks and the process around them in Argentina about this event: https://pretalx.freifunktag.de/battlemesh-v17-2025/talk/ME8DXM/ 00:15:40 https://media.freifunk.net/v/nextcloud-auf-kleincomputern-raspi-co about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics Sat, 31 May 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wcw2025/9e0ef2b7-01fb-4255-9cb1-83c4c0f35ddb/9e0ef2b7-01fb-4255-9cb1-83c4c0f35ddb-h264.mp4?1750507001 9e0ef2b7-01fb-4255-9cb1-83c4c0f35ddb 2025-05-31T00:00:00+02:00 Sven-Ola No nextcloud about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics 00:24:19 https://media.freifunk.net/v/openwrt-and-software-freedom-conservacy about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics Sat, 31 May 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wcw2025/cd80d8db-09d6-4500-a888-032df3d5d60c/cd80d8db-09d6-4500-a888-032df3d5d60c-h264.mp4?1750490677 cd80d8db-09d6-4500-a888-032df3d5d60c 2025-05-31T00:00:00+02:00 Denver Gingerich No openwrt, sfc about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics 00:14:12 https://media.freifunk.net/v/developer-and-admin-discussion Open round for everyone who runs community networks or infrastructure for communities be it Freifunk, OpenWrt https://md.darmstadt.ccc.de/ffwcw2025-openround about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics Sat, 31 May 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wcw2025/7af7aefe-bb3a-4d1a-8815-787426488a82/7af7aefe-bb3a-4d1a-8815-787426488a82-h264.mp4?1751212336 7af7aefe-bb3a-4d1a-8815-787426488a82 2025-05-31T00:00:00+02:00 skorpy No Open round for everyone who runs community networks or infrastructure for communities be it Freifunk, OpenWrt https://md.darmstadt.ccc.de/ffwcw2025-openround about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics 00:26:14 https://media.freifunk.net/v/openwrt-device-management-with-uconfig about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics Sat, 31 May 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wcw2025/f21d9273-1fec-46e4-947a-1cc8965bc525/f21d9273-1fec-46e4-947a-1cc8965bc525-h264.mp4?1750465293 f21d9273-1fec-46e4-947a-1cc8965bc525 2025-05-31T00:00:00+02:00 blogic No openwrt, uconfig about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics 00:52:57 https://media.freifunk.net/v/gsoc-projekte-ruckblick-2024-ausblick-2025 about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics Sat, 31 May 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wcw2025/50916c07-2f12-4f00-9341-d3e08eaf4d14/50916c07-2f12-4f00-9341-d3e08eaf4d14-h264.mp4?1750516759 50916c07-2f12-4f00-9341-d3e08eaf4d14 2025-05-31T00:00:00+02:00 andibraeu No gsoc, freifunk about this event: https://wiki.freifunk.net/Wireless_Community_Weekend_2025:Topics 00:21:16 https://media.freifunk.net/v/wir-bauen-eine-bugwelle Zum WCW 2025 sprechen Bea und Nuri über den Digital Service Act, Störerhaftung, Abmahnungen und wie deutsche Gerichte damit umgehen. about this event: Fri, 30 May 2025 00:00:00 +0200 https://cdn.media.freifunk.net/wcw2025/1bb31731-08f9-48c1-b8de-65f117a3afc9/1bb31731-08f9-48c1-b8de-65f117a3afc9-h264.mp4?1749037733 1bb31731-08f9-48c1-b8de-65f117a3afc9 2025-05-30T00:00:00+02:00 Bea, Nuri No Störerhaftung, Abmahnung Zum WCW 2025 sprechen Bea und Nuri über den Digital Service Act, Störerhaftung, Abmahnungen und wie deutsche Gerichte damit umgehen. about this event: 00:52:30 media.ccc.de / RSS 0.2.7 freifunk.net media@koeln.ccc.de freifunk.net No freifunk wifi Hacking Security Netzpolitik A wide variety of video material distributed by freifunk.net. All content is taken from cdn.media.freifunk.net and media.freifunk.net A wide variety of video material distributed by the freifunk.net. This feed contains events from the last two years