Current maxfiles: unlimited
    3         utils.c:2180    (ast_utils_init           ): open("/dev/urandom",0)
    4      asterisk.c:1476    (ast_makesocket           ): socket(PF_UNIX,SOCK_STREAM,"tcp")
    5        logger.c:313     (make_logchannel          ): fopen("/var/log/asterisk/messages","a")
   10       netsock.c:120     (ast_netsock_bindaddr     ): socket(PF_INET,SOCK_DGRAM,"udp")
   11      chan_sip.c:32203   (reload_config            ): socket(PF_INET,SOCK_DGRAM,"udp")
   13  chan_unistim.c:6814    (reload_config            ): socket(PF_INET,SOCK_DGRAM,"udp")
   14     pbx_dundi.c:5013    (load_module              ): socket(PF_INET,SOCK_DGRAM,"udp")
   16      asterisk.c:4271    (main                     ): pipe({16,18})
   18      asterisk.c:4271    (main                     ): pipe({16,18})