ocserv exit after a while with this logs May 1 08:57:23 debian ocserv[13686]: sec-mod: using 'radius' authentication to authenticate user (session: EFlTS) May 1 08:57:24 debian ocserv[13686]: radius-auth: communicating username (trial000050) and password May 1 08:57:25 debian ocserv[13686]: radius-auth: communicating username (trial000050) and password May 1 08:57:25 debian ocserv[13685]: main[trial000057]: 5.*.*.*:18052 user disconnected May 1 08:57:26 debian ocserv[13686]: sec-mod: temporarily closing session for trial000057 (session: CprMq) May 1 08:57:26 debian ocserv[13686]: sec-mod: invalidating session of user 'trial000057' (session: CprMq) May 1 08:57:26 debian ocserv[13686]: radius-auth: sending session interim update May 1 08:57:26 debian ocserv[13686]: rc_avpair_new: unknown attribute 52 May 1 08:57:26 debian ocserv[13685]: main[trial000057]: 5.*.*.*:18052 main-sec-mod-cmd.c:335: error receiving auth cli stats message from sec-mod cmd socket: Interrupted system call May 1 08:57:26 debian ocserv[13685]: sh: echo: I/O error May 1 08:57:27 debian ocserv[13686]: radius-auth: communicating username (trial000050) and password May 1 08:57:28 debian ocserv[13686]: sec-mod: error processing data for 'sm: auth cont' command (-3) May 1 08:57:28 debian ocserv[17327]: worker[trial000050]: 164.138.169.192 worker-auth.c:1403: failed authentication for 'trial000050' May 1 08:57:28 debian ocserv[13685]: main: main-sec-mod-cmd.c:109: cannot obtain data from command socket: Connection timed out May 1 08:57:28 debian ocserv[13685]: main: main.c:1266: error command from sec-mod May 1 08:57:28 debian ocserv[13685]: main: termination request received; waiting for children to die May 1 08:57:28 debian ocserv[13685]: main: 164.138.169.192:28354 user disconnected May 1 08:57:28 debian ocserv[13685]: main: 176.219.144.110:7146 user disconnected May 1 08:57:28 debian ocserv[13685]: main[trial000054]: 5.46.10.205:10745 user disconnected May 1 08:57:28 debian ocserv[13686]: sec-mod: temporarily closing session for trial000054 (session: LzfKW) May 1 08:57:28 debian ocserv[17263]: worker[trial000054]: 5.46.10.205 worker-auth.c:715: error connecting to sec-mod socket '/var/run/ocserv-socket.13685': Connection refused May 1 08:57:28 debian ocserv[13685]: main[f****]: 37.98.89.3:60052 user disconnected May 1 08:57:28 debian ocserv[13685]: common.c:322: Broken pipe May 1 08:57:28 debian ocserv[13685]: main[f****]: 37.98.89.3:60052 main-sec-mod-cmd.c:327: error sending message to sec-mod cmd socket May 1 08:57:28 debian ocserv[17163]: worker[f****]: 37.98.89.3 worker-auth.c:715: error connecting to sec-mod socket '/var/run/ocserv-socket.13685': No such file or directory