Can someone help me understand the asterisk log below specifically for the lines “Rejecting unknown SIP connection from 212.129.63.217” and “Remote UNIX connection”. Our Asterisk server crashed but were able to get in after it crashed. The first we looked at is the asterisk logs. The last logs before it crashed are below. I am not sure if someone from IP address 212.129.63.217 is trying to remote access our Asterisk server.
[2015-01-10 03:31:25] VERBOSE[18045][C-00018c33] pbx.c: – Executing [s@from-sip-external:6] Log(“SIP/50.xxx.xxx.xx-000de34a”, "WARNING,“Rejecting unknown SIP connection from 212.129.63.217"”) in new stack
[2015-01-10 03:31:25] WARNING[18045][C-00018c33] Ext. s: “Rejecting unknown SIP connection from 212.129.63.217”
[2015-01-10 03:31:25] VERBOSE[18045][C-00018c33] pbx.c: – Executing [s@from-sip-external:7] Answer(“SIP/50.xxx.xxx.xx-000de34a”, “”) in new stack
[2015-01-10 03:31:25] VERBOSE[18045][C-00018c33] pbx.c: == Spawn extension (from-sip-external, s, 7) exited non-zero on ‘SIP/50.xxx.xxx.xx-000de34a’
[2015-01-10 03:31:25] VERBOSE[18045][C-00018c33] pbx.c: – Executing [h@from-sip-external:1] Hangup(“SIP/'SIP/50.xxx.xxx.xx-000de34a”, “”) in new stack
[2015-01-10 03:31:25] VERBOSE[18045][C-00018c33] pbx.c: == Spawn extension (from-sip-external, h, 1) exited non-zero on ‘SIP/50.xxx.xxx.xx-000de34a’
[2015-01-10 03:35:01] VERBOSE[2050] asterisk.c: – Remote UNIX connection