Hello, Probably figured out the issue. Needed to download the sources from apt libraries directly and build them. Now I can get the library running. ________________________________ Von: Freeradius-Users <freeradius-users-bounces+dbeken=blackned.de@lists.freeradius.org> im Auftrag von Dincer Beken <dbeken@blackned.de> Gesendet: Montag, 9. September 2024 17:41 An: freeradius-users@lists.freeradius.org <freeradius-users@lists.freeradius.org> Betreff: [EXTERNAL] Freeradius Module Extension Magic Number mismatch Hello, Freeradius 3.2.1 is installed from debian packages (standard debian bookworm distribution). I have implemented a new module and added it as an .so. I built the module alongside Freeradius 3.2.1 (from github). When enabling the module, I get the following error: Mon Sep 9 15:29:38 2024 : Error: /etc/freeradius/3.0/mods-enabled/tba[1]: Failed loading module rlm_(null) from file /usr/lib/freeradius/rlm_tba.so Mon Sep 9 15:29:38 2024 : Error: /etc/freeradius/3.0/mods-enabled/tba[1]: Application and rlm_(null) magic number (prefix) mismatch. application: 0 module: f0 Even if I write the simplest module, I get this issue. The has the following binder. Can you tell me, where the issue is originating from, and how I can get the MAGIC number? I searched and tried out a lot, but at the end, had to implement the functionality as a python script. Getting the radius module running would help me a lot. extern module_t rlm_tba; module_t rlm_tba = { .magic = RADIUSD_MAGIC_NUMBER, .methods = { [MOD_POST_AUTH] = tba_post_auth } }; Regards, Dincer - List info/subscribe/unsubscribe? See https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.freeradius.org%2Flist%2Fusers.html&data=05%7C02%7Cdbeken%40blackned.de%7Ca049870550ff4016016f08dcd0e5e212%7C331ade1e93f545288e0bd7e2347088a7%7C0%7C0%7C638614932986286604%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=IvwAt%2Bho03Pcxek%2FIheU01Yc8zLTg6biwQ3FMj8agS8%3D&reserved=0<http://www.freeradius.org/list/users.html>