Phillmac

Service opens thousands of listening udp ports on startup

By Phillmac, in Sync Troubleshooting

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Phillmac   

Phillmac
Posted

Soon after starting the service, the log is full of entries (see below) and the service fails to listen on the configured port, finally picking a (seemingly) random port to listen on.

sync version:  

 2.6.3 (1340) (server)
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56125
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56125
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56125: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56126
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56126
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56126: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56127
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56127
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56127: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56128
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56128
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56128: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56129
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56129
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56129: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56130
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56130
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56130: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56131
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56131
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56131: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56132
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56132
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56132: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56133
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56133
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56133: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56134
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56134
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56134: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56135
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56135
[2019-11-21 10:25:17.607] UDP: UDP port bind failed 0.0.0.0:56135: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.607] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56136
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56136
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56136: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56137
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56137
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56137: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56138
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56138
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56138: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56139
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56139
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56139: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56140
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56140
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56140: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56141
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56141
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56141: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56142
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56142
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56142: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56143
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56143
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56143: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56144
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56144
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56144: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56145
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56145
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56145: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56146
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56146
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56146: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56147
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56147
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56147: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56148
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56148
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56148: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56149
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56149
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56149: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56150
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56150
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56150: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56151
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56151
[2019-11-21 10:25:17.623] UDP: UDP port bind failed 0.0.0.0:56151: (10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. 
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafb40][596] bound listening socket 596 to IP 0.0.0.0:56152
[2019-11-21 10:25:17.623] class PeerListenConnection::Socket::listen[0x000001a23ecafbc0][1028] bound listening socket 1028 to IP [::]:56152

 

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Phillmac   

Phillmac
Posted

Turns out it was the windows dns service (dns.exe) hogging port 56125

The solution was to mark 56125 as reserved in the ephemeral port ranges in the registry.

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