@miconda This module is not used, he is not installed in system. Kamailio is default and installed from official repo. ``` [root@hostname kamailio]# ls -la /usr/lib64/kamailio/modules/ | grep db_ -rwxr-xr-x. 1 root root 192264 May 6 07:55 db_cluster.so -rwxr-xr-x. 1 root root 99168 May 6 07:55 db_flatstore.so -rwxr-xr-x. 1 root root 227840 May 6 07:55 db_mysql.so -rwxr-xr-x. 1 root root 247136 May 6 07:55 db_text.so ``` ``` kamailio -v version: kamailio 5.5.0 (x86_64/linux) d4c1a1 flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: d4c1a1 compiled on 07:50:25 May 6 2021 with gcc 4.8.5 ```