Set the port range for Linux/Windows

Set the port range for Linux/Windows

Set the port range for Linux/Windows

Recently, the program failed to start because the port occupied the listening port. Therefore, I checked some information and saw where to set it.

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Linux (CentOS ):
The default value is 32768-61000.

Modification method:
Add the following configuration in/etc/sysctl. conf: (Open 20000-50000 as the completion port)

Net. ipv4.ip _ local_port_range = 20000 50000
Restart the platform after the configuration is complete, or enter sysctl-p to take effect immediately.

Command

Sysctl net. ipv4.ip _ local_port_range
View related configurations.

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Windows Server 2008/Win7/Vista: (enabling ipv-50000 is the completion port)
The default value is 49152-65535.
Modification method:

Netsh int ipv4 set dynamicportrange tcp startport = 10000 numberofports = 400001
After the configuration is complete, you can use

Netsh int ipv4 show dynamicportrange tcp
View the effect.

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Windows Server 2003:
The default open port range is 1024-5000.
Modification method:
You can go to the Registry path

HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ services \ Tcpip \ Parameters

Add a Dword field MaxUserPort and configure the maximum port number (minimum cannot be changed ).

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