方法/步骤 1 1.在为数据库创建监听时提示如下图错误信息 2 2.但是查看1521端口号时发现，并没有使用过1521端口 3 3.因为数据库还没有完全安装好，查看监听模板文件并不能查看出原因 4 4.查看服务器主机名称，发现主机名称也是没有错误的 5 5.查看数据库配置的概要文件信息，也没有发现有什么错误的地方 6 6...
Ports allow computers to easily differentiate between different kinds of traffic: emails go to a different port than webpages, for instance, even though both reach a computer over the same Internet connection. What is a port number? Ports are standardized across all network-connected devices, ...
to a remote server on the internet uses File Transfer Protocol (FTP) for the transaction. Both devices must be configured totransfer files via FTP. To transfer the file, the Transmission Control Protocol (TCP) software layer in local host identifies the port number of 21, which, by convention...
<port_number>:<port_number> 值表示以冒号分隔的起始和结束端口号。 不要在冒号周围使用空格。 起始端口号必须小于结束端口号。 -l <filename.txt>生成日志文件 <filename.txt>值表示日志文件的名称和扩展名。 此值不能包含空格。 命令运行时,PortQry 会在安装它的目录中创建日志文件。
-e <port_number> Specify the target port (also known as "endpoint") The <port_number> value represents the port to query on the destination computer. The default value is 80. -o <port_number>,<port_number> Specify multiple target ports in a sequence The <port_number>,<port_number> ...
When you connect a new COM device or a USB device to your computer (USB modem, mobile phone, Bluetooth adapter, serial to USB converters, etc.), Windows detects it using Plug-n-Play and assigns it aCOM port numberin the range of1 to 255(COM1, COM2, COM3, etc.). If this device...
As a workaround, rebooting the computer will get it back in normal state and would help you resolve the issue for the time being. However, when a reboot is impractical, you can also consider increasing the number of ports on the machine using the below commands: ...
With a quick scan, you’ll be able to know what the port number is, whether the port is UDP or TCP, and discover the number of instances for each port. You’ll also be able to filter ports based on port range like system ports and registered ports. ...
Her official number is carved on theportside of the forecabin. 这艘船的注册编号刻在前舱的左舷上。 柯林斯高阶英语词典 He asked for a glass ofportafter dinner. 晚饭后,他要了一杯波尔图葡萄酒。 柯林斯高阶英语词典 Whereas your family's archives is personal, those held by the National Archives ...
You use theGetPortNamesmethod to retrieve the valid ports for the current computer. If aSerialPortobject becomes blocked during a read operation, do not abort the thread. Instead, either close the base stream or dispose of theSerialPortobject. ...