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