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wizard-proxy: survive fd exhaustion and close leaked tunnels - #4
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razmser
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Oct 28, 2026
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- Retry failed accepts instead of stopping the listener (EMFILE killed it for good).
- Raise the Unix soft open-file limit to min(10240, hard); macOS GUI apps start at 256.
- Close a tunnel 30 s after one side's clean close (a FIN_WAIT_2 leak seen in the field).
- TCP keepalive on outgoing sockets; hyper's 30 s header read timeout.
- Retry failed accepts instead of stopping the listener (EMFILE killed it for good). - Raise the Unix soft open-file limit to min(10240, hard); macOS GUI apps start at 256. - Close a tunnel 30 s after one side's clean close (a FIN_WAIT_2 leak seen in the field). - TCP keepalive on outgoing sockets; hyper's 30 s header read timeout.
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