Author: Lin Jun Source: China Computer News
When visiting a website, it takes a long time, sometimes it can't access the site. In this way, many time consumes waiting. So, is there a way to save the time to improve the efficiency of the Internet? The answer is yes.
We know that the reason why accessing a website requires a considerable wait time because the user's computer has a traffic jam, unstable condition, or malfunction between the links accessed. If you can know the quality of the line in advance, you can do some targeted, avoiding the inconvenience of the unstable condition, and the equal line status will be re-enabled and then access the specific website.
How can I know the quality of the line? With the following network test commands, you can help you use and maintain your network.
Ping command
Using the ping command, you can test the time required to transfer one of the hosts to another host from one host to determine the response time of the host. The action of this command is mainly used to check if the route can be reached. Since the length of the command is small, the speed transmitted online is very fast, and it can quickly detect whether the site to go can arrive. Generally accessing a certain site, you can run this command first to determine if the site can be reached.
If the ping command is not successful, it can be judged that the fault appears in the following aspects: whether the network cable is connected, the network adapter configuration is correct, whether the IP address is available. If the connection is successful and the network is still unused, the problem is likely to be in the software configuration of the network system. The PING command is successful, only explains that there is a connected physical path between the current host and the destination host. Its usage format is, type "Ping IP Address or Host Name" at the command prompt, execute the result to display the response time, repeat this command, you can find that the response time of the ping report is different. After the specific ping command, you can follow some parameters, which will be described in detail after typing ping.
For example, when accessing the site www.ccidnet.com, you can use the ping command to test the speed of the current connection to the site. Assuming that the running system is Windows 9x, click the Start button, select the "Run" command, then enter the URL of ping and the URL to be tested in the Run dialog, which is ping www.ccidnet.com, the program will The primary server of the specified Web URL sends a 32-byte message, which is recorded after the response time of the server. The ping command will display the results of 4 tests to the user, and the response time is less than 300 milliseconds, it is considered to be normal, and when the time exceeds 400 milliseconds, the network speed is considered to be slower. "Request Time Out" appears, it means that the URL does not respond within 1 second, indicating that the server does not respond to ping or the URL response is extremely slow. When four "request pause" information appears, the URL rejects the PING request.
Since too much ping command test itself is prone to bottlenecks, many web administrators set the server to not accept such tests. If the URL is very busy or out of other reasons, if the hardware power is insufficient, the data channel is narrow, and it can be tried again for a while to determine whether the URL does not have faults. If there is a problem with multiple tests, the usual reason is that the user's host and the URL site are not connected, and the user should contact the Internet service provider or network administrator in time.
Winipcfg command
The role of the WiniPCFG command is the configuration information for displaying the IP protocol of the host's internal IP protocol. The WiniPCFG program uses the Windows window to display the specific configuration information of the IP protocol. If the winiPcfg command does not run directly with any parameters, the program can also display the physical address of the network adapter in the window, the host's IP address, subnet mask, and default gateway, etc., and you can also view the host's related information such as host name, DNS server, node type, etc. When trying to quickly understand the specific configuration of a host IP protocol, the WiniPCFG command is available. For details, in the "Run" dialog box, enter the WiniPCFG command directly, and a window interface appears after the carriage return. In this interface, you can understand the type of network card used by the host, the physical address of the network card, the IP address of the host, the subnet mask, router, etc. If the user wants more detailed understanding of other IP protocol configuration information of the host, such as the DNS server, the DHCP server, you can directly click the Details button in the interface.
Tracert command
The role of the tracert command is to determine the path passed by the packet to the host, display the number of relay nodes passing through the data package and arrival time. The usage format of this command is in the DOS command prompt, or in the Run Dialog box, type the following command: "Tracert host IP address or host name". The execution result is to return a list of relay stations experienced by the destination host before the destination host, and display the time to each relay station. Although this function is a bit similar to the ping command, the information it see is much more detailed than the ping command. It has the whole site that the host sends the request package, and all the routes that are displayed and displayed. The IP of the route is delayed by this IP. After the Tracert command, you can use multiple parameters to type tracert and return to the return will be detailed.
If the user wants to know the detailed transmission path information between its computer and the target host, you can use the tracert command to detect. The specific steps are as follows: In the Run dialog box, enter the "Tracert www.ccidnet.com" command directly, click Enter key to see an interface. You can also enter the "Tracert www.ccidnet.com" command in the MS-DOS mode, and you can also have the same result interface. In this way, the path information connected to the target website can be displayed in detail. For example, how many times in the middle is transferred, and each time it takes more time, it takes more time, etc., easy to detect the user host and the target website. Where is the line out of the line?
Netstat command
The NetStat command allows the user to understand how the host is connected to the Internet, which helps users understand the overall usage of the network. It can display details of the currently active network connection, such as network connections, routing tables, and network interfaces, etc., you can also let users know what network connections are currently running.
You can use the "NetStat /?" Command to see the usage format of this command and the detailed parameter description, the usage format of this command is to type the following command at the DOS command prompt or in the Run dialog box: "NetStat [parameter ], Using the parameters provided by the program, the user can understand other functional information of the command, such as displaying statistics of the Ethernet, showing the usage status of all protocols, etc. These protocols include TCP protocols, UDP protocols, and IP protocols, and other specific protocols can also be selected and view their specific usage information, and the port number of all hosts and the current host's detailed routing information can also be displayed.
For example, if the user wants to understand the export address, gateway address, and host address of a city information network center node, you can use the netstat command to query. The specific operation method is as follows: In the Run dialog box, enter the netstat command directly, click Enter key; or enter the netstat command in the MS-DOS mode. From the pop-up interface, you can learn about the protocol type used by the host, the current host and the remote connection of the host's IP address, and the connection status between the connections thereof. The above is a variety of commonly used command tools, efficient and practical, compared to many hardware detection tools, and all kinds of systems come with a network administrator!
