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.

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.

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=40000

After the configuration is complete, you can use

netsh int ipv4 show dynamicportrange tcp 

View the effect.

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 ).