I have a simple OpenVPN server on my home server, I have recently noticed that my syslog is flooded with TLS Errors from what seems to be someone trying to connect and getting TLS Errors. It will usually be one IP-address trying to connect on multiple ports for a time, before it moves to another IP-address. None of these addresses have anything to do with me and I am able to connect just fine myself. The logs look like this:
Jan 20 14:20:22 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:10401 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:10401, sid=6a22eb44 5adb63fe
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:14119 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:14119, sid=6a22eb44 5adb63fe
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:38381 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:38381, sid=6a22eb44 5adb63fe
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:33377 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:33377, sid=6a22eb44 5adb63fe
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:11227 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:11227 TLS Error: TLS handshake failed
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:11227 SIGUSR1[soft,tls-error] received, client-instance restarting
Jan 20 14:20:23 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:16542 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:16542, sid=6a22eb44 5adb63fe
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:335 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:335 TLS Error: TLS handshake failed
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:335 SIGUSR1[soft,tls-error] received, client-instance restarting
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:10506 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:10506 TLS Error: TLS handshake failed
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:10506 SIGUSR1[soft,tls-error] received, client-instance restarting
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:63243 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:63243 TLS Error: TLS handshake failed
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:63243 SIGUSR1[soft,tls-error] received, client-instance restarting
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:45957 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:45957, sid=6a22eb44 5adb63fe
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:57762 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:57762, sid=6a22eb44 5adb63fe
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:13286 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:13286, sid=6a22eb44 5adb63fe
Jan 20 14:20:24 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:29176 TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:29176, sid=6a22eb44 5adb63fe
Jan 20 14:20:25 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:57424 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Jan 20 14:20:25 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:57424 TLS Error: TLS handshake failed
Jan 20 14:20:25 [MyComputerName] ovpn-server[1088]: xxx.xxx.xxx.xxx:57424 SIGUSR1[soft,tls-error] received, client-instance restarting
Is this normal?
Are these attempts to get into my system?
Any way I can make this stop?
