Sometimes I get the error message:
docker.exe: Error response from daemon: driver failed programming external connectivity on endpoint infallible_kapitsa (c7baca25c4e65da8aa6e592e7fb9ed81c0f55a3f7891e93c62a79819007f4e61): Error starting userland proxy: listen tcp 0.0.0.0:1234: bind: Der Zugriff auf einen Socket war aufgrund der Zugriffsrechte des Sockets unzulässig.
The reason is, that Docker cannot bind the requested port (in may case port 1234). Since a while Hyper-V seems to block some ports exclusively and you get this error:
docker run -p 1234:80 nginx docker: Error response from daemon: driver failed programming external connectivity on endpoint thirsty_feistel (d67c95aff29ae75aaae54a0a439fd5211ff76482009ef36e0caef9237d5337e9): Error starting userland proxy: listen tcp 0.0.0.0:1234: bind: Der Zugriff auf einen Socket war aufgrund der Zugriffsrechte des Sockets unzulässig.
But you can check the blocked ports in the CMD and get the range of the exclusive blocked ports:
netsh interface ipv4 show excludedportrange protocol=tcp Start Port End Port ---------- -------- 1026 1125 1226 1325 1326 1425 1426 1525 1526 1625 1733 1832 1933 2032 2033 2132 2180 2279 2280 2379 2382 2481 2482 2581 2683 2782 2783 2882 47001 47001 50000 50059 * * - Administered port exclusion.
The easiest way is to switch to another port, if you start your docker container. If you need a special port and it is blocked, you maybe need this workaround: https://github.com/docker/for-win/issues/3171#issuecomment-459205576.
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