下面的命令会列出Linux系统中的临时端口范围

Following command will list the ephemeral port range in Linux system

sysctl net.ipv4.ip_local_port_range 

如果不想重启，编辑/etc/sysctl.conf文件后执行以下命令即可生效.

If we don't want to reboot, after editing /etc/sysctl.conf file if we execute following command it will be effective.

sysctl -p /etc/sysctl.conf .

有效范围的事情的真相是输出

The truth of the matter of effective range is output of

sysctl net.ipv4.ip_local_port_range 

正如 eckes 在评论中提到的那样.

as mentioned by eckes in comment.